JP6337690B2 - Arrangement position calculation device, control method and program for arrangement position calculation device - Google Patents

Description

  The present invention relates to an arrangement position calculation device, a method for controlling an arrangement position calculation device, and a program.

  In recent years, with the rapid spread of power generation facilities using renewable energy, there is an increasing interest in stabilizing the power system. And as one of the various efforts to improve the stability of the power system, installation of power storage facilities in the power system is being promoted.

  By installing power storage equipment in the power system, for example, power is stored in the power storage equipment during times when power consumption is low, and power is supplied from the power storage equipment during times when power consumption is high. Thus, the amount of power generated by the power generation facility can be leveled, and the stability of the power system can be improved.

  When introducing power storage equipment to the power system, it is necessary to consider how the state of the power system changes when the power storage equipment is installed. Optimal power flow calculation is used.

  Optimal power flow calculation is the amount of operation for power system components that maintain the power system operation constraints and minimize fuel cost costs and transmission loss (power generation facility output, terminal voltage, phase adjustment facility operation amount) Is a method of calculating

  When operating conditions such as fuel cost and transmission loss are given as objective functions, operating constraints of the power system are given as constraints, and manipulated variables are given as state variables, the optimal power flow becomes a constrained optimization problem (for example, (See Patent Document 1).

  In addition, since the influence when the storage facility is arranged in the power system varies greatly depending on the arrangement position of the storage facility, a technique for supporting the determination of the arrangement position of the storage facility has also been developed (see, for example, Patent Document 2). .

JP 2006-174564 A JP 2013-143839 A

  However, the power system is composed of a large number of facilities such as power generation facilities, substation facilities, load facilities, and transformers connected over a vast area via a transmission and distribution line. In order to determine the arrangement position, it is necessary to perform a huge amount of calculation over a long period of time. In addition, when there are a plurality of power storage facilities to be introduced into the power system, the multivariable problem is solved, and the amount of calculation increases more and more.

  For this reason, there is a need for a technique that can more efficiently calculate the location of the storage facility when the storage facility is disposed in the power system.

  The present invention has been made in view of such problems, and an arrangement position calculation device and an arrangement position calculation device that can more efficiently calculate an arrangement position when an electric storage facility is arranged in an electric power system. One object is to provide a method and a program.

One of means for solving the above problem is an arrangement position calculation device for calculating an arrangement position when the storage facility is arranged in the electric power system, wherein the electric power system configuration and the electrical characteristics of each component are obtained. A system information acquisition unit that acquires system information to represent, a power storage facility information acquisition unit that acquires power storage facility information representing the electrical characteristics of the power storage facility, and the system information and the power storage facility information. wherein calculating a predetermined index value for the power system in the case where a power storage equipment, and a position calculating unit that the index value is determined arrangement positions of the power storage equipment, such as a predetermined value, the arrangement When the plurality of power storage facilities are arranged in the power system, the position calculation unit arranges the power storage facility at the arrangement position as a component of the power system every time the arrangement position of the one power storage facility is obtained. Is after updating the system information as, to determine the position of the next of said power storage equipment, Ru seek position one by one the energy storage equipment in order.

  In addition, the problems disclosed by the present application and the solutions thereof will be clarified by the description in the column of the embodiment for carrying out the invention and the description of the drawings.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to calculate more efficiently the arrangement position at the time of arrange | positioning electrical storage equipment in an electric power grid | system.

It is a figure which shows the hardware constitutions of an arrangement position calculation apparatus. It is a figure which shows the function structure of an arrangement position calculation apparatus. It is a figure which shows the memory | storage device of an arrangement position calculation apparatus. It is a figure which shows an electric power grid | system. It is a figure which shows the electric power system after reduction. It is a figure which shows the predicted value of the power consumption of the load installation. It is a figure which shows the cost reduction effect at the time of arrange | positioning the electrical storage equipment B in an electric power grid | system. It is a figure which shows the output result of the optimal arrangement position of the electrical storage equipment. It is a figure which shows the cost reduction effect at the time of arrange | positioning the electrical storage equipment B in an electric power grid | system. It is a figure which shows the output result of the optimal arrangement position of the electrical storage equipment. It is a flowchart which shows the flow of a process of an arrangement position calculation apparatus.

  At least the following matters will become apparent from the description of this specification and the accompanying drawings.

= Power system =
As shown in FIG. 4, the power system 1000 according to the present embodiment is configured by connecting the power generation facilities from the power generation facilities G <b> 1 to the power generation facility G <b> 10 through a power transmission line (transmission and distribution line) T.

  In the power system 1000, the power system connecting the power generation equipment G1 and the power generation equipment G10 is a higher system, and the lower systems are branched from branch points (B) to (H) provided on the upper system. .

  Each lower system branches from the upper system at each branch point (B) to (H) and is connected to the power generation equipment G2 to the power generation equipment G9, respectively.

  Although not described in detail in FIG. 4, the power system 1000 includes a load facility L that consumes power, a phase adjusting facility S that controls the phase of power, a power storage facility B, a transformer H, and solar power. Various facilities such as a distributed power source such as a power generation facility PV are installed.

  In the following description, when it is not necessary to distinguish between the power generation equipment G1 and the power generation equipment G10, they are collectively referred to as the power generation equipment G.

= Configuration of arrangement position calculation device =
The arrangement position calculation apparatus 100 according to the present embodiment is an apparatus that calculates an arrangement position when a power storage facility B configured to include one or more power storage devices such as a battery is newly arranged in the power system 1000.

  In power system 1000, power storage equipment B is arranged in units of packages. One package of power storage equipment B includes one or more power storage devices. In the following description, one package of power storage equipment B is referred to as one power storage equipment B.

  Next, the entire configuration of the arrangement position calculation apparatus 100 according to the present embodiment is shown in FIGS. FIG. 1 is a diagram for explaining a hardware configuration of the arrangement position calculation apparatus 100, and FIG. 2 is a diagram for explaining a functional configuration of the arrangement position calculation apparatus 100.

  As shown in FIG. 1, an arrangement position calculation apparatus 100 according to the present embodiment includes a CPU (Central Processing Unit) 110, a memory 120, a communication apparatus 130, a storage apparatus 140, an input apparatus 150, an output apparatus 160, and a recording medium reading apparatus. The computer is configured to include 170.

  The CPU 110 is responsible for overall control of the arrangement position calculation device 100, and reads out and executes a control program 600 composed of codes for performing various operations according to the present embodiment stored in the storage device 140 to the memory 120. By doing so, various functions as the arrangement position calculating device 100 are realized.

  For example, although the details will be described later, the control program 600 is executed by the CPU 110 and cooperates with hardware devices such as the memory 120, the communication device 130, and the storage device 140, whereby the acquisition unit 101, the arrangement position calculation unit 102, and the like. Realized.

  The memory 120 can be configured by a semiconductor memory device, for example.

  The communication device 130 is a network interface such as a network card. The communication device 130 receives data from another computer via a network such as the Internet or a LAN (Local Area Network), and stores the received data in the storage device 140 or the memory 120. Further, the communication device 130 transmits data stored in the storage device 140 or the memory 120 to another computer via the network.

  The input device 150 is a device such as a keyboard, a mouse, and a microphone, and is a device for accepting input of information by an operator of the arrangement position calculation device 100. The output device 160 is a device such as an LCD (Liquid Crystal Display), a printer, or a speaker, and is a device for outputting information.

  The storage device 140 can be constituted by, for example, a hard disk device or a semiconductor storage device. The storage device 140 is a device that provides a storage area for storing various programs, data, tables, and the like. FIG. 3 shows a state where the control program 600 and the data storage unit 700 are stored in the storage device 140.

  The control program 600 is read from the recording medium (various optical disks, magnetic disks, semiconductor memories, etc.) 800 to the storage device 140 by using the recording medium reader 170, and is stored in the arrangement position calculation apparatus 100. It can also be stored in the arrangement position calculation device 100 by obtaining from another computer that is communicably connected via the communication device 130.

  In addition, the data storage unit 700 stores an objective function and constraint conditions that are referred to by an arrangement position calculation unit 102 to be described later, a predicted value of power consumption for each predetermined time of the load facility L, system data (system information), and the like. ing. Details of these will be described later.

  Next, as illustrated in FIG. 2, the arrangement position calculation apparatus 100 according to the present embodiment includes the functional blocks of an acquisition unit 101 and an arrangement position calculation unit 102.

  The acquisition unit 101 includes system data (system information) representing the configuration of the power system 1000 and the electrical characteristics of each component, and electrical power such as active power and reactive power of the power storage equipment B newly arranged in the power system 1000. The storage facility information indicating the characteristics is acquired from the input device 150 or the communication device 130 and stored in the data storage unit 700.

  The system data includes, for example, the length and line impedance of the transmission line T in the upper system and the lower system, the position and active power and reactive power of the load facility L, the position of the power generation facilities G1 to G10, and the fuel cost coefficient (yen / kWh, etc. Indices), active power and reactive power, the position and active power and reactive power of the power storage equipment B installed in the power system 1000, the position and capacity of the phase adjusting equipment S, the upper and lower limit values for the node voltage, and the like.

  In addition, the acquisition unit 101 uses an objective function for calculating the power generation cost of the power generation equipment G, which is used when the arrangement position calculation device 100 performs the optimal power flow calculation, and each of the power systems 1000 such as the power generation equipment G and the power storage equipment B. The constraint conditions during operation of the component are acquired from the input device 150 or the communication device 130 and stored in the data storage unit 700.

  Furthermore, the acquisition unit 101 includes information on power supply and demand, such as a predicted value of the power consumption of the load facility L every predetermined time (for example, every hour), a predicted value of the power generation amount of the solar power generation facility PV every predetermined time, Obtained from the input device 150 or the communication device 130 and stored in the data storage unit 700. As an example, FIG. 6 shows a predicted value of power consumption per day of the load facility L every predetermined time.

  The objective function described above is for calculating a predetermined index value related to the power system 1000, and in this embodiment, the power generation cost is calculated as an example. In addition, the objective function may calculate an index value indicating, for example, power transmission loss, voltage stability per day, reactive power loss (delay), carbon dioxide (CO2) emissions, and system operation amount. .

  Next, the arrangement position calculation unit 102 uses the predicted value of the power consumption of the load facility L every predetermined time, the predicted value of the power generation amount of the photovoltaic power generation facility PV every predetermined time, system data, and storage facility information. Then, the arrangement position of the power storage equipment B is calculated so that the value of the objective function is a predetermined value (for example, the minimum value or the maximum value) while satisfying the constraint conditions.

  In other words, the arrangement position calculation unit 102 uses the objective function and the constraint conditions, so that the operation amount, the voltage solution, the arrangement position of the power storage equipment B, and other dependent variables are set so that the operation state of the power system 1000 becomes more optimal. Calculate The arrangement position calculation unit 102 calculates an optimal solution by performing an optimal power flow calculation using an optimization method such as mathematical programming.

  At that time, the arrangement position calculation unit 102 according to the present embodiment updates the system data so that each lower system is contracted as a node on the upper system in the power system 1000 illustrated in FIG. 4. At this time, in the system data, information on the configuration of the lower system and the electrical characteristics of each component of the lower system is expressed as a reduced node at the branch point from the upper system. FIG. 5 shows the power system 1000 contracted in this way. As shown in FIG. 5, in the reduced power system 1000, each lower system becomes a node (load node) at each branch point (B) to (H) from the upper system.

  And the arrangement position calculation part 102 which concerns on this embodiment performs said optimal power flow calculation with respect to the electric power system 1000 after contraction | shrinking as shown in FIG. Ask from inside. By doing so, the amount of calculation for performing the optimum power flow calculation, that is, the number of calculations can be reduced, so that the optimum arrangement position of the power storage equipment B can be obtained efficiently in a shorter time.

  Next, optimal power flow calculation performed by the arrangement position calculation apparatus 100 according to the present embodiment will be described. The arrangement position calculation apparatus 100 performs optimal power flow calculation by solving an optimization problem given as a nonlinear optimization problem as in Expressions (1) to (4).

Minimize f ₁ (x, u, z, p) (1)
Subject to g ₁ (x, u, z, p) = 0 (2)
g ₂ (x, u, z, p) = 0 (3)
h ₁ (x, u, z, p) ≤ 0 (4)
Here, x is the voltage solution, u is the manipulated variable, z is a variable that is dependent on the manipulated variable (reactive power of the power generation equipment G, transformer tap value, etc.), and p is the power storage newly arranged in the power system 1000 This is the arrangement position of the equipment B. p is represented by a distance (for example, a length) from the starting point of the transmission line T (the power generation equipment G1 in the present embodiment). However, it is 0 <= p <= L (L is the distance (for example, extended length) from the power generation equipment G1 to G10 in this embodiment).

  Equation (1) is an objective function, Equation (2) is an equational constraint expressed by a tidal equation, Equation (3) is an equation constraint other than a tidal equation (characteristics of a transformer, SVC (Static Var Compensator), etc. (Control logic) and equation (4) are inequality constraints (specified value of voltage, power flow value of transmission line T, etc.).

  The arrangement position calculation apparatus 100 according to the present embodiment performs an optimal power flow calculation for a nonlinear optimization problem given by the equations (1) to (4) by a method such as mathematical programming.

  Note that the power flow equation is given in Equation (2). The power flow equation is based on a circuit equation in which the supply or consumption of active power and reactive power specified at each node in the power system 1000 is composed of the voltage and line impedance of each node. It means that the obtained active power and reactive power coincide with each other.

<Objective function>
The objective function is formulated as an equation for calculating the power generation cost of the active power output of the power generation equipment G, for example, as in Equation (5).

ここで、Gi（i=1〜n）は発電設備番号、Gnは発電設備の数、P_Gi(t)は時刻tにおける発電設備Giの有効電力出力値、a_Gi、b_Gi、c_Giは発電設備Giの有効電力P_Gi(t)と発電コストFcostの関係を示す係数である。発電コストFcostは、発電設備Giの有効電力出力P_Gi(t)の二次関数で近似されるため、このような定式化が行われる。

Here, Gi (i = 1 to n) is the power generation equipment number, Gn is the number of power generation equipment, P _Gi (t) is the active power output value of the power generation equipment Gi at time t, a _Gi , b _Gi , c _Gi are The coefficient indicates the relationship between the active power P _Gi (t) of the power generation facility Gi and the power generation cost Fcost. Since the power generation cost Fcost is approximated by a quadratic function of the active power output P _Gi (t) of the power generation facility Gi, such a formulation is performed.

<Restrictions>
Next, the constraint conditions will be described. As described above, the constraint conditions include equality constraints and inequality constraints. In this embodiment, a tidal equation is included as an example of equality constraints, and examples of inequality constraints include upper and lower limit constraints on voltage, power flow constraints on the transmission line T, facility capacity constraints, and the like.

  The tidal current equation is expressed by, for example, Expressions (6) and (7). Equation (6) is a power flow equation relating to the active power component, and Equation (7) is a power flow equation relating to the reactive power component.

ここで、Giは発電設備番号、P_Gi(t)は時刻tにおけるGiは発電設備の有効電力出力値、Biは蓄電設備番号、P_Bi(t)は時刻tにおける蓄電設備Biの有効電力出力値、Liは負荷番号、 P_Li(t)は時刻tにおける負荷Liの有効電力消費量、Q_Gi(t)は時刻tにおける発電設備Giの無効電力出力値、Q_Bi(t)は時刻tにおける蓄電設備Biの無効電力出力値、Q_Li(t)は時刻tにおける負荷Liの無効電力消費量、θi(t)、θj(t)は、それぞれ時刻tにおけるノードi、jの位相角の値である。またＮはノードの数である。

Here, Gi is the power generation equipment number, P _Gi (t) is Gi at the time t Gi is the active power output value of the power generation equipment, Bi is the power storage equipment number, and P _Bi (t) is the active power output of the power storage equipment Bi at the time t Value, Li is the load number, P _Li (t) is the active power consumption of load Li at time t, Q _Gi (t) is the reactive power output value of power generation equipment Gi at time t, and Q _Bi (t) is time t The reactive power output value of the storage facility Bi at Q, Q _Li (t) is the reactive power consumption of the load Li at time t, and θ i (t) and θ j (t) are the phase angles of the nodes i and j at time t, respectively. Value. N is the number of nodes.

  Vi (t) and Vj (t) are voltage amplitude values of nodes i and j at time t, respectively. Gij (t) and Bij (t) are the real part and the imaginary part of i rows and j columns of the admittance matrix of the power system at time t, respectively.

  In addition, when considering a transformer tap and a phase-adjustment installation capacity, an admittance matrix becomes a function which uses a transformer tap and a phase-adjustment installation capacity as a variable.

  The power flow restriction of the power transmission line T is expressed as, for example, Expression (8).

ここで、θi(t)、θj(t)は、それぞれ時刻tにおけるノードi、jの位相角の値である。Vi(t)、Vj(t)は、それぞれ時刻tにおけるノードi、jの電圧振幅の値である。Gij(t)、Bij(t)はそれぞれ時刻tにおける電力系統のアドミタンス行列のi行j列の実部と虚部である。また、線路熱容量の定格値をP_R、ノードの数をＮとする。

Here, θi (t) and θj (t) are the values of the phase angles of the nodes i and j at time t, respectively. Vi (t) and Vj (t) are voltage amplitude values of nodes i and j at time t, respectively. Gij (t) and Bij (t) are the real part and the imaginary part of i rows and j columns of the admittance matrix of the power system at time t, respectively. Further, the rated value of the line heat capacity is P _R , and the number of nodes is N.

Further, the upper and lower limit constraints of the voltage amplitude V _i (t) are expressed as, for example, Expression (9). The upper and lower limit constraints on the voltage amplitude V _i (t) are constraints for maintaining the voltage amplitude of each node within a predetermined range.

ただし、V_Liは電圧の下限値、V_Uiは電圧の上限値である。

However, V _Li is the lower limit value of the voltage, and V _Ui is the upper limit value of the voltage.

  In addition, regarding various constraints such as upper and lower limits of equipment capacity and rate of change, these can be given as equipment capacity restrictions. The equipment capacity constraints include, for example, the following constraints (a) to (i).

(A) Active power output value upper and lower limit constraints of power generation equipment G (b) Reactive power output value upper and lower limits constraint of power generation equipment G (c) Active power output change rate upper and lower limit constraints of power generation equipment G (d) Power storage equipment B Effective power output value upper and lower limit constraints (e) Reactive power output value upper and lower limit constraints for power storage facility B (f) SOC (State of Charge) upper and lower limit constraints for power storage facility B (g) Phased facility capacity upper and lower limit constraints (H) Transformer Tap Fluctuation Width Upper / Lower Limit Constraint (i) Transformer Phase Shift Angle Upper / Lower Limit Constraint As described above, the arrangement position calculation device 100 according to the present embodiment performs an optimization problem given as a nonlinear optimization problem. The optimal power flow calculation is performed by solving, but when the power storage equipment B is newly arranged in the power system 1000, for example, when the load equipment L is arranged only in one place or concentrated in a certain small area In the power grid When considering the transmission losses and voltage stability of 000, as much as possible it is preferable to place the energy storage equipment B in the vicinity of the load equipment L.

  However, when a plurality of load facilities L are dispersed in the electric power system 1000 and the arrangement position of the power storage equipment B is limited, the power transmission loss and the voltage stability vary depending on the arrangement position of the power storage equipment B. Therefore, it is necessary to obtain an optimal arrangement position of the power storage equipment B.

  Therefore, in order to consider the change of the objective function value and the decision variable value due to the difference in the location of the power storage equipment B, when the above optimization problem is reset, the equations (10) to (12) are obtained. .

minimize [f ₂ (p) | p∈R ¹ , f ₂ ∈R ¹ , f ₂ : R ¹ → R ¹ ] (10)
subject to 0 ≦ p ≦ L (11)
[g ₃ (p, x) = 0 | x∈R ⁿ , g ₃ ∈R ^m , g ₃ : R ^{n + 1} → R ^m ] (12)
Here, f2 is an objective function (power generation cost of the active power output of the power generation equipment G), p is an arrangement position of the power storage equipment B newly arranged in the power system 1000, and L is a distance (range) from the power generation equipment G1 to G10. G) is the power flow equation and x is the bus voltage.

  In this way, the arrangement position calculation device 100 calculates the power generation cost per day of the power generation equipment G while changing the arrangement position of the power storage equipment B in various ranges of 0 ≦ p ≦ L.

  The arrangement position calculation device 100 according to the present embodiment calculates a predetermined index value related to the electric power system 1000 when the power storage equipment B is newly arranged in the electric power system 1000 using the equations (1) to (12). Is shown in FIG. FIG. 7 shows an example in which the cost reduction effect of the power generation equipment G is calculated as the predetermined index value.

  In the example shown in FIG. 7, the cost reduction effect of the power generation facility G when the power storage facility B is installed at each position of each of the nodes (A) to (I) is obtained. The cost reduction effect shown in FIG. 7 increases as the power generation cost of the power generation facility G decreases.

  Therefore, the arrangement position calculation device 100 according to the present embodiment obtains the arrangement position of the power storage equipment B so that the value of the cost reduction effect becomes the maximum value (predetermined value).

  Specifically, the arrangement position calculation device 100 refers to the system data, and calculates the distances from the node (A), which is the reference position where the power generation equipment G1 is installed, to each of the nodes (B) to (I). Obtaining and determining the arrangement position of the power storage equipment B that maximizes the cost reduction effect shown in FIG. 7 (the power generation cost is the minimum value).

  As shown in FIG. 7, the cost reduction effect is maximized when the power storage equipment B is arranged at the node (F). Therefore, the arrangement position calculating device 100 performs the node (A ) From the position of the node (F) whose distance is d, it can be determined that it is optimal to arrange the power storage equipment B.

  In addition, the arrangement position calculation device 100 according to the present embodiment obtains a predetermined index value related to the power system 1000 when the power storage equipment B is arranged at a candidate position provided at an arbitrary position along the power transmission line T in the power system 1000. It can also be calculated.

  The arrangement position calculation device 1000 according to the present embodiment calculates the cost reduction effect of the power generation equipment G when the power storage equipment B is arranged at a candidate position provided at an arbitrary position along the power transmission line T in the power system 1000. The results are shown in FIG.

  As shown in FIG. 9, it is understood that the cost reduction effect is maximized when the power storage facility B is arranged at the position (x) where the distance from the power generation facility G1 is d.

  The arrangement position calculation apparatus 100 refers to the system data, and acquires the respective distances from the node (A), which is the reference position where the power generation equipment G1 is installed, to each of the nodes (B) to (I). , Position (x) can be identified as a position between node (E) and node (F).

  Thus, the arrangement position calculation apparatus 100 according to the present embodiment can obtain a more optimal installation position without being limited to the position of the node when the power storage facility B is newly arranged in the power system 1000. it can. In this way, the arrangement position calculation device 100 according to the present embodiment can more efficiently obtain the arrangement position when the power storage equipment B is arranged in the power system 1000.

  Moreover, the arrangement position calculation device 100 according to the present embodiment can also obtain the arrangement position of each power storage equipment B when the power storage equipment B of a plurality of packages is arranged in the power system 1000.

  In that case, the arrangement position calculation device 100 according to the present embodiment obtains the arrangement positions of the power storage equipment B one by one in order. That is, every time the arrangement position calculation device 100 obtains an arrangement position for one power storage facility B, the system position data is updated so that the power storage facility B is disposed as a component of the power system 1000 at the above-described arrangement position. Then, the arrangement position of the next power storage equipment B is obtained.

  Specifically, for example, when obtaining the arrangement positions of the first power storage equipment B1 and the second power storage equipment B2, the arrangement position calculating device 100 first optimizes the first power storage equipment B1 as described above. By solving the problem, the optimum arrangement position of the first power storage equipment B1 is obtained.

  Then, the arrangement position calculation device 100 updates the reduced system data stored in the data storage unit 700 so that the first power storage equipment B1 has already been installed at this arrangement position.

  And the arrangement position calculation apparatus 100 calculates | requires the optimal arrangement position of 2nd electrical storage equipment B2 by solving the optimization problem which was mentioned above about 2nd electrical storage equipment B2 using the system data after this update. .

  By such an aspect, the arrangement position calculation device 100 according to the present embodiment can obtain the arrangement positions of the plurality of power storage equipment B with a smaller calculation amount without solving the multivariable problem. For this reason, even if it is a case where the arrangement position calculation apparatus 100 calculates | requires the arrangement position of the electrical storage equipment B of a several package, it becomes possible to obtain | require an arrangement position efficiently in a short time.

  Next, the processing flow of the arrangement position calculation apparatus 100 according to the present embodiment will be described with reference to the flowchart shown in FIG.

  First, the arrangement position calculating apparatus 100 accepts data input (S1000). Specifically, the arrangement position calculation device 100 is a power storage facility that indicates the configuration of the power system 1000 and system data representing the electrical characteristics of each component, and the electrical characteristics of the power storage facility B newly disposed in the power system 1000. Input of information related to power supply and demand, such as information, objective function, constraint condition, predicted value of the power consumption of the load facility L every predetermined time, and predicted value of the power generation amount of the photovoltaic power generation facility PV every predetermined time is accepted. The arrangement position calculation device 100 stores these data in the data storage unit 700.

  Next, the arrangement position calculation apparatus 100 reduces the system model (S1010). Specifically, the arrangement position calculation apparatus 100 updates the system data stored in the data storage unit 700 so that the lower system of the power system 1000 is contracted as a node on the upper system.

Subsequently, the arrangement position calculation device 100 stores the power storage equipment B newly arranged in the power system 1000.
The arrangement position of is calculated (S1020). Specifically, arrangement position calculating apparatus 100 relates to an electric power system when electric storage facility B is arranged in electric power system 1000 using the contracted system data and the electric storage facility information stored in data storage unit 700. A predetermined index value is calculated, and an arrangement position of the power storage equipment B such that the index value becomes a predetermined value is obtained.

  At this time, when there are a plurality of power storage facilities B arranged in the power system 1000, the arrangement position calculation device 100 obtains the arrangement positions of the power storage facilities B one by one in order. Specifically, each time the arrangement position calculation device 100 obtains the arrangement position of one power storage facility B, the system position data is stored so that the power storage facility B is disposed as a component of the power system 1000 at the above-described arrangement position. It updates and uses the updated system | strain data, and calculates | requires the arrangement position of the following electrical storage equipment B. FIG.

  Then, the arrangement position calculation device 100 outputs the result of obtaining the arrangement position of the power storage equipment B to the output device 160. For example, the arrangement position calculation device 100 outputs image information as illustrated in FIGS. 7 to 10 to the output device 160.

  As described above, according to the arrangement position calculation device 100 according to the present embodiment, it is possible to more efficiently calculate the arrangement position when the power storage equipment B is arranged in the power system 1000.

  For example, when there are a plurality of power storage facilities B arranged in the power system 1000, the arrangement position calculation device 100 according to the present embodiment obtains the arrangement positions of the power storage facilities B one by one in order.

  According to such an aspect, it is possible to obtain the arrangement positions of the plurality of power storage equipment B with less calculation amount without solving the multivariable problem. For this reason, the arrangement position calculation device 100 can efficiently obtain the arrangement position in a shorter time even when the arrangement positions of the plurality of power storage facilities B are obtained.

  Further, the arrangement position calculation device 100 according to the present embodiment calculates an index value when the power storage equipment B is arranged at a candidate position provided at an arbitrary position along the power transmission line T in the electric power system 1000, and this index value Can be obtained as an arrangement position of the power storage equipment B.

  According to such an aspect, when the power storage equipment B is newly arranged in the power system 1000, the optimal installation position can be obtained without being limited to the position of the node in the power system 1000. It is possible to more efficiently obtain the arrangement position when the power storage equipment B is arranged.

  In addition, the arrangement position calculation device 100 according to the present embodiment calculates an index value when the power storage facility B is arranged at the position of any node in the power system 1000, and the node where the index value becomes a predetermined value. Can also be obtained as an arrangement position of the power storage equipment B.

  According to such an aspect, the candidate position where the power storage equipment B is arranged can be limited to the position of the node. Therefore, the arrangement position of the power storage equipment B can be obtained with a smaller amount of calculation. For this reason, the arrangement position calculation apparatus 100 can obtain the arrangement position efficiently in a shorter time.

  In addition, the arrangement position calculation apparatus 100 according to the present embodiment updates the system data so that each lower system in the power system 1000 is contracted as a node on the upper system, and then the storage facility B in the power system 1000 is updated. An index value in the case of arranging the power storage device B is calculated, and an arrangement position of the power storage equipment B such that the index value becomes a predetermined value can be obtained from the upper system.

  According to such an aspect, since the amount of calculation for performing the optimum power flow calculation can be reduced, the optimum arrangement position of the power storage equipment B can be obtained efficiently in a shorter time.

  In addition, the arrangement position calculation device 100 according to the present embodiment, when determining the arrangement position of the power storage equipment B, the arrangement position of the power storage equipment B so that the power generation cost by the power generation equipment G in the power system 1000 becomes the minimum value. Can be requested.

  In this way, by obtaining an optimal arrangement position of the power storage equipment B using an economic index such as power generation cost, it is also possible to obtain the arrangement position of the power storage equipment B to be arranged in the power system 1000 more efficiently. It becomes.

  The embodiments described above are for facilitating the understanding of the present invention, and are not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and equivalents thereof are also included in the present invention.

100 Arrangement Position Calculation Device 101 Acquisition Unit 102 Arrangement Position Calculation Unit 110 CPU
120 Memory 130 Communication Device 140 Storage Device 150 Input Device 160 Output Device 170 Recording Medium Reading Device 600 Control Program 700 Data Storage Unit 800 Recording Medium 1000 Power System B Power Storage Facility G Power Generation Facility L Load Facility PV Solar Power Generation Facility S Phase Control Facility T Transmission line

Claims (6)

An arrangement position calculation device for calculating an arrangement position when arranging power storage equipment in an electric power system,
A system information acquisition unit that acquires system information representing the configuration of the power system and the electrical characteristics of each component;
A storage facility information acquisition unit that acquires storage facility information representing the electrical characteristics of the storage facility;
Using the grid information and the power storage facility information, a predetermined index value related to the power system when the power storage facility is arranged in the power system is calculated, and the power storage facility is such that the index value becomes a predetermined value. An arrangement position calculation unit for obtaining an arrangement position of
Equipped with a,
In the case where a plurality of power storage facilities are arranged in the power system, the arrangement position calculation unit calculates the arrangement position as a component of the power system every time the arrangement position of one power storage facility is obtained. wherein after updating the system information as being disposed, to determine the position of the next of said power storage equipment, position calculation, wherein Rukoto seek position one by one the energy storage equipment in order apparatus. The arrangement position calculating device according to claim 1 ,
The arrangement position calculation unit calculates the index value when the power storage equipment is arranged at a candidate position provided at an arbitrary position along the transmission and distribution line in the power system, and the index value is the predetermined value. The arrangement position calculation apparatus characterized by calculating | requiring such a candidate position as an arrangement position of the said electrical storage equipment. The arrangement position calculating device according to claim 1 ,
The arrangement position calculation unit calculates the index value when the power storage facility is arranged at a position of any node in the power system, and sets the node position such that the index value becomes the predetermined value. An arrangement position calculation device characterized in that it is obtained as an arrangement position of the power storage facility. The arrangement position calculation device according to any one of claims 1 to 3 ,
The power system is configured to have a higher system and a lower system branching from the upper system,
In the system information, the information on the configuration of the lower system and the electrical characteristics of each component of the lower system is represented as a node at a branch point from the upper system,
The arrangement position calculation device is characterized in that the arrangement position calculation unit obtains an arrangement position of the power storage facility from the upper system so that the index value becomes a predetermined value. A control method for an arrangement position calculating device that calculates an arrangement position when arranging power storage equipment in an electric power system,
The arrangement position calculation device acquires system information representing the configuration of the power system and the electrical characteristics of each component,
The arrangement position calculation device acquires power storage facility information representing the electrical characteristics of the power storage facility,
The arrangement position calculation device calculates a predetermined index value related to the power system when the power storage facility is arranged in the power system using the system information and the power storage facility information, and the index value is a predetermined value. the position of the energy storage equipment such that the determined,
When the plurality of power storage facilities are arranged in the electric power system, the arrangement position calculation device calculates the arrangement position as a component of the electric power system every time the arrangement position of one electric power storage facility is obtained. wherein after updating the system information as being disposed, to determine the position of the next of said power storage equipment, position calculation, wherein Rukoto seek position one by one the energy storage equipment in order Device control method. In the arrangement position calculation device for calculating the arrangement position when arranging the power storage equipment in the power system,
A procedure for acquiring system information representing the configuration of the power system and the electrical characteristics of each component;
A procedure for acquiring power storage facility information representing the electrical characteristics of the power storage facility;
Using the grid information and the power storage facility information, a predetermined index value related to the power system when the power storage facility is arranged in the power system is calculated, and the power storage facility is such that the index value becomes a predetermined value. The procedure for determining the placement position of
When arranging a plurality of power storage facilities in the power system, every time the position of one power storage facility is determined, the power storage facility is disposed at the position as a component of the power system. After obtaining the grid information, the procedure for obtaining the location of the power storage equipment one by one in order to obtain the location of the next power storage equipment;
A program for running

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