JP6539043B2 - Railway feeding system and railway feeding control method - Google Patents

Description

  The present invention relates to a railway transportation system and a railway transportation control method.

  Due to the seriousness of environmental and energy problems in recent years, technology for realizing energy saving is regarded as important. As one of them, effective utilization of regenerative electric power generated at the time of brake operation is attracting attention. In the electric railway, regenerative power is supplied to the overhead wire and used for powering other trains. However, when the power running vehicle is not traveling on the same feeding section as the regenerative vehicle, the regenerative power can not be utilized. Therefore, in order to make effective use of regenerative power, it is necessary to have a technology capable of utilizing regenerative power even for powering vehicles traveling on different feeding sections. As a technology for solving such a problem, there is "Control and system of electric wire" of Patent Document 1. In this publication, by connecting different feeding sections via the power interchange device, power is supplied from the feeding section where the regenerative vehicle travels to the feeding section in the direction where the power running vehicle travels, and the regenerative power is effective. Are used to

Japanese Patent Application Publication No. 2014-104962

  However, in Patent Document 1, when the power interchange device is installed in each feeding section on both sides adjacent to one feeding section, which feeding section on the both sides adjacent to which regenerative power is to be supplied is disclosed. It can not be determined properly. For this reason, the output of the power interchange device runs short of the regenerative power, and an event that can not be fully utilized occurs. It is an object of the present invention to distribute regenerative electric power equally between two adjacent feeding sections when the power running vehicle travels two feeding sections adjacent to the feeding section where the regenerative vehicle travels. , Effective utilization of regenerative power.

Then, in order to solve the above-mentioned subject, the present invention is provided with the control device which controls the interchange of the electric power which flows into at least 3 or more feeding sections, and the control apparatus is the regeneration obtained from the vehicle traveling in the feeding section It controls the power interchange device which interchanges the above-mentioned regenerated power from a predetermined feeding section to another feeding section based on the power and the power running power consumed by the vehicle traveling in the feeding section. Provide a railway transportation system.

  According to the present invention, regenerative electric power can be effectively utilized by allocating regenerative electric power to two adjacent feeding sections without excess or deficiency.

It is a block diagram of the railroad feeding system by Example 1 of this invention. It is an example of the processing flow of the control apparatus which concerns on the Example of this invention. It is an example of a process of the control apparatus which concerns on Example 1 of this invention. It is an example of a process of the control apparatus which concerns on Example 2 of this invention. It is a block diagram of the railroad feeding system by Example 3 of this invention. It is an example of the combination of the present value and tolerance limit value concerning Example 3 of this invention. It is an example of a process of the control apparatus which concerns on Example 3 of this invention.

  Hereinafter, preferred embodiments for carrying out the present invention will be described. The following is merely an example of the embodiment and is not intended to limit the invention itself to the following specific contents.

  FIG. 1 is a diagram showing the configuration of a feeding system according to a first embodiment of the present invention.

  A first substation 101, a first feeder wire 102 supplied with power from the first substation 101, a second substation 103, and a second supplied with power from the second substation 103 It is connected to the third feeder wire 106 supplied with power from the feeder wire 104, the third substation 105, and the third transformer station 105, and the first feeder wire 102 and the second feeder wire 104. A first power interchange device 107 and a second power interchange device 108 connected to the second feeder wire 104 and the third feeder wire 106 are provided.

  The first power interchange device 107 can supply power from the second feeder wire 104 to the first feeder wire 102 in accordance with the output command value. The second power interchange device 108 can supply power from the second feeder wire 104 to the third feeder wire 106 in accordance with a given output command value.

  The first output command 109 for the first power transfer device 107 and the second output command 110 for the second power transfer device 108 are output by the control device 111, and the control device 111 is controlled by the first substation 101. Power supplied from the second substation 103 to the second feeder wire 104, and the third substation 105. The first output command 109 and the second output command 110 are determined on the basis of the third electric power 114 supplied to the third feeder wire 106. In addition, as an example of the configuration of the control device, a processor such as a CPU, a memory for storing or processing program data and acquired data, a storage medium such as a hard disk, and communication means capable of wired / wireless transmission / reception. Is considered.

  FIG. 2 is a diagram showing a process flow of the control device 111 according to each embodiment of the present invention. The control device 111 first acquires information relating to the regenerative power and power of the vehicle in the feeding section consisting of at least three, calculates the total value of the regenerative power and power running power in each feeding section from there, and performs regeneration Compare the magnitude of power and power running power. At this time, if the regenerative power is greater or the powering power is greater in all feeding sections, the amount of power interchange becomes zero, and the process is terminated. On the other hand, if the regenerative power is larger in one or two feeding sections, but the power running power is larger in the other feeding sections, or in one or two feeding sections. If the power running power is higher but the regenerative power is higher in other feeding sections, the amount of power interchange is determined. After that, the control command to the power interchange device installed between each feeding section is created and transmitted from the determined amount of power interchange.

  The power interchange amount determines the amount of power to be flowed from the feeding section in which the regenerative power is larger than the power running power to the feeding section in which the power execution power is larger than the regenerative power. Specific processing including the will be described below.

    FIG. 3 is a diagram showing processing of the control device 111 according to the first embodiment of the present invention. The method of calculating the first output command 109 and the second output command 110 in the control device 111 differs depending on the conditions. The case number for identifying the condition in the first row, the code of the first power PL1 generated by the group of vehicles traveling the first feeder wire 102 in the second row, and the second feeder wire 104 in the third row The code of the second power PL2 generated by the traveling vehicle group, the code of the third power PL3 generated by the vehicle group traveling the third feeder wire 106 in the fourth column, the detailed condition in the fifth column, the sixth A first output command value PC1 output as the first output command 109 in the column, and a second output command value PC2 output as the second output command 110 in the seventh column are shown.

  The first output command value PC1 has a positive output command value when it is transferred from the second feeder wire to the first feeder wire, and the second output command value PC2 is from the second feeder wire to the third. Make the output command value supplied to the feeder cable positive.

  The output of the control device 111 is determined according to the combination of the first power PL1, the second power PL2, and the positive / negative relationship of the third power PL3.

  The first electric power PL1, the second electric power PL2, and the third electric power PL3 can be obtained by the following equation 1 using the symbols described in FIG. 1 in consideration of the balance of the electric power flowing into each feeder line. be able to.

[Equation 1]
PL1 = first power 112 + output of first power interchange device 107 PL2 = second power 113-output of first power interchange device 107-output of second power interchange device 108 PL3 = third power 114 + Output of second power interchange unit 108

  If the signs of the first electric power PL1, the second electric power PL2, and the third electric power PL3 are negative, the regenerative electric power by the vehicle group traveling on each feeder line exceeds the powering electric power, and the surplus in the regenerative electric power Means that is occurring. Conversely, when the sign is positive, it means that the power running power by the vehicle group traveling on each feeder line exceeds the regenerative power, and there is no surplus in the regenerative power.

  Case 1 is a case where the signs of the first power PL1, the second power PL2, and the third power PL3 are all positive. In this case, since there is no feeder line where surplus power is generated in regenerative power, regenerative power can not be utilized even if the power interchange device is operated. Therefore, first output command value PC1 and second output command value PC2 are Both are 0.

  Case 2 is a case where the signs of the first power PL1, the second power PL2, and the third power PL3 are all negative. In this case, since surplus power is generated in all feeder lines, the regenerative power can not be utilized even if the power interchange device is operated. Therefore, the first output command value PC1 and the second output command value PC2 Are both 0.

  Case 3 is a case where the sign of the first power PL1 is positive, the sign of the second power PL2 is positive, and the sign of the third power PL3 is negative. In this case, the second output command value PC2 is a value obtained by multiplying a small value of the absolute value of the sum of the first power PL1 and the second power PL2 and the absolute value of the third power PL3 by minus. The first output command value PC1 is a value obtained by multiplying the sum of the second power PL2 and the second output command value PC2 by minus. However, the lower limit of the first output command value PC1 is zero. Thereby, the regenerative electric power from the regenerative vehicle traveling on the third feeder wire 106 such that the sum of the absolute values of the outputs of the first power interchange device 107 and the second power interchange device 108 is minimized. Can be distributed to powered vehicles traveling on the second feeder wire 104 and the first feeder wire 102.

  Case 4 is a case where the sign of the first power PL1 is negative, the sign of the second power PL2 is positive, and the sign of the third power PL3 is positive. In this case, the first output command value PC1 is a value obtained by multiplying a small value of the absolute value of the sum of the second power PL2 and the third power PL3 and the absolute value of the first power PL1 by minus. The second output command value PC2 is a value obtained by multiplying the sum of the second power PL2 and the first output command value PC1 by minus. However, the lower limit of the second output command value PC2 is zero. Thereby, the regenerative electric power from the regenerative vehicle traveling on the first feeder wire 102 such that the sum of the absolute values of the outputs of the first power interchange device 107 and the second power interchange device 108 is minimized. Can be distributed to a powered vehicle traveling on the second feeder line 104 and the third feeder line 106.

  Case 5 is the case where the sign of the first power PL1 is negative, the sign of the second power PL2 is negative, and the sign of the third power PL3 is positive. In this case, the second output command value PL2 is a small value of the absolute value of the sum of the first power PL1 and the second power PL2 and the absolute value of the third power PL3. The first output command value PC1 is the sum of the second output command value PC2 and the second power PL2. However, the lower limit of the first output command value PC1 is zero. As a result, of the power consumed by the power running vehicle that travels the third feeder wire 106, the power that can be covered by the regenerative power from the regenerative vehicle traveling the second feeder wire 104 and the first feeder wire 102. It is possible to distribute only the sum of the absolute values of the outputs of the first power transfer unit 107 and the second power transfer unit 108 to be minimum.

  Case 6 is the case where the sign of the first power PL1 is positive, the sign of the second power PL2 is negative, and the sign of the third power PL3 is negative. In this case, the first output command value PC1 is a small value of the absolute value of the sum of the second power PL2 and the third power PL3 and the absolute value of the first power PL1. The second output command value PC2 is a difference between the output command value PC1 and the second power PL2. However, the upper limit of the second output command value PC2 is zero. As a result, of the power consumed by the power running vehicle traveling the first feeder wire 102, it is possible to share the regenerative power from the regenerative vehicle traveling the second feeder wire 104 and the third feeder wire 106. It is possible to distribute only the minutes so that the sum of the absolute values of the outputs of the first power transfer unit 107 and the second power transfer unit 108 is minimized.

  Case 7 is a case where the sign of the first power PL1 is positive, the sign of the second power PL2 is negative, and the sign of the third power PL3 is positive. In this case, the calculation method of the first output command value PC1 and the second output command value PC2 is performed under the detailed condition of the magnitude relationship between the second power PL2 and the sum of the first power PL1 and the third power PL3. change.

  Case 7-1 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is equal to or less than the absolute value of the second power PL2. In this case, the first output command value PC1 is a first power PL1, and the second output command value PC2 is a third power PL3.

  Case 7-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is a value obtained by multiplying the absolute value of the second power PL2 by the sum of the first power PL1 divided by the sum of the first power PL1 and the third power PL3. . Further, the second output command value PC2 is obtained by multiplying the absolute value of the second power PL2 by a factor such that the numerator is the third power PL3 and the denominator is the sum of the first power PL1 and the third power PL3. It will be a value.

  As a result, the regenerative electric power from the regenerative vehicle traveling on the second feeder wire 104 can be distributed to the first feeder wire 102 and the third feeder wire 106 without excess or deficiency.

  Case 8 is the case where the sign of the first power PL1 is negative, the sign of the second power PL2 is positive, and the sign of the third power PL3 is negative. In this case, the calculation method of the first output command value PC1 and the second output command value PC2 is performed under the detailed condition of the magnitude relationship between the second power PL2 and the sum of the first power PL1 and the third power PL3. change.

  Case 8-1 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is equal to or less than the absolute value of the second power PL2. In this case, the first output command value PC1 is a value obtained by multiplying the absolute value of the first power PL1 by a minus, and the second output command value PC2 is a value obtained by multiplying the absolute value of the third power PL3 by a minus Do.

  Case 8-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first power command value PC1 is obtained by dividing the first power PL1 by the sum of the first power PL1 and the third power PL3 with respect to a value obtained by multiplying the absolute value of the second power PL2 by a minus value. The value is multiplied by the value. The second output command value PC2 is a sum of the third power PL3 and the denominator of the first power PL1 and the third power PL3 with respect to a value obtained by multiplying the absolute value of the second power PL2 by a minus value. The value multiplied by the factor to be

  As a result, of the power consumed by the power running vehicle traveling the second feeder wire 104, the amount by which the regenerative power of the regenerative vehicle traveling the first feeder wire 102 and the third feeder wire 106 can be used. Can be supplied via the power interchange units 107 and 108.

  FIG. 4 is a diagram showing processing of the control device 111 of the feeding system according to the second embodiment of the present invention. Using the first rated output PR1 that is the rated output of the first power interchange device 107 and the second rated output PR2 that is the rated output of the second power interchange device 108 for processing Is different.

  The cases 1 to 6 are the same as the processing of the control device 111 of the first embodiment, and thus the description thereof is omitted.

  Case 7 is a case where the sign of the first power PL1 is positive, the sign of the second power PL2 is negative, and the sign of the third power PL3 is positive. In this case, the magnitude relationship between the second power PL2 and the absolute value of the sum of the first power PL1 and the third power PL3 is a detailed condition, and the first output command value PC1 and the second output command value PC2 are obtained. Change the calculation method.

  Case 7-1 is the case where the sum of the absolute values of the first power PL1 and the third power PL3 is less than or equal to the absolute value of the second power PL2. In this case, the first output command value PC1 is the first power PL1, and the second output command value PC2 is the third power PL3.

  Case 7-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is a sum of the first rated output PR1 and the denominator of the first rated output PR1 and the second rated output PR2 with respect to the absolute value of the second power PL2. It is a value multiplied by a factor. The second output command value PC2 is a factor that makes the numerator the second rated output PR2 and the denominator the sum of the first rated output PR1 and the second rated output PR2 with respect to the absolute value of the second power PL2 The value multiplied by.

  As a result, the regenerative power of the regenerative vehicle traveling on the second feeder wire 104 is equally distributed to the power running vehicle traveling on the first feeder wire 102 and the third feeder wire 106, and at the same time the rated output Can be operated with priority.

  Case 8 is the case where the sign of the first power PL1 is negative, the sign of the second power PL2 is positive, and the sign of the third power PL3 is negative. In this case, the first output command value PC1 and the second output command are based on the detailed condition of the magnitude relationship between the absolute value of the second power PL2 and the absolute value of the sum of the first power PL1 and the third power PL3. Change the method of calculating the value PC2.

  Case 8-1 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is equal to or less than the absolute value of the second power PL2. In this case, the first output command value PC1 is a value obtained by multiplying the absolute value of the first power PL1 by a minus, and the second output command value PC2 is a value obtained by multiplying the absolute value of the third power PL3 by a minus .

  Case 8-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is a sum of the absolute value of the second power PL2 and a minus value, and the numerator is the rated output PR1 and the denominator is the sum of the rated output PR1 and the rated output PR2. It is a value multiplied by a factor. Further, the second output command value PC2 is a factor in which the numerator is the rated output PR2 and the denominator is the sum of the rated output PR1 and the rated output PR2 with respect to a value obtained by multiplying the absolute value of the second power PL2 by a minus. The value multiplied by.

  As a result, of the power consumed by the power running vehicle traveling on the second feeder wire 104, the regenerative power from the regenerative vehicle traveling on the first feeder wire 102 and the third feeder wire 106 can be borne by the power At the same time as supplying electric power without excess or deficiency, a power interchange device with a large rated output can be preferentially operated.

  As described above, according to the second embodiment, the regenerative power generated by the second feeder wire 104 is equally distributed to the first feeder wire 102 and the third feeder wire 106, and Among the power interchange device 107 and the power interchange device 108, the power interchange device with the largest rated output can be used preferentially. This makes it possible to smooth the temperature rise of the power interchange device when the rated outputs of the first power interchange device 107 and the second power interchange device 108 are different.

  FIG. 5 is a diagram showing the configuration of a feeding system according to a third embodiment of the present invention.

  The form of Embodiment 1 is that, as the input of the control device 111 in Embodiment 1, the first current value 401 related to the condition of the power transfer device 107 and the second current value 402 related to the condition of the power transfer device 108 are added. It is different from

  In the third embodiment, the residual capacity M1 of the first load and the residual capacity M2 of the second load are defined by the following equation 2 with respect to the first current value 401 and the second current value 402, and processing is performed. Do.

[Equation 2]
M1 = (allowable limit value of the power interchange device 107 for the first state−first current value 401) / permissible limit value of the power interchange device 107 for the first state M2 = (power interchange device 108 for the second state Limit value of the second current value 402) / the limit value of the power interchange unit 108 for the second state

  The present value and the allowable limit value may be any combination shown in FIG.

FIG. 7 is a diagram showing processing of the control device 111 according to the third embodiment of the present invention.
The cases 1 to 6 are the same as the processing of the control device 111 of the first embodiment, and thus the description thereof is omitted.

  Case 7 is a case where the sign of the first power PL1 is positive, the sign of the second power PL2 is negative, and the sign of the third power PL3 is positive. In this case, the magnitude relationship between the second power PL2 and the absolute value of the sum of the first power PL1 and the third power PL3 is a detailed condition, and the first output command value PC1 and the second output command value PC2 are obtained. Change the calculation method.

  Case 7-1 is the case where the sum of the absolute values of the first power PL1 and the third power PL3 is less than or equal to the absolute value of the second power PL2. In this case, the first output command value PC1 is the first power PL1, and the second output command value PC2 is the third power PL3.

  Case 7-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is the residual power M1 of the first load, the denominator the residual power M1 of the first load, and the residual power M2 of the second load with respect to the absolute value of the second power PL2. It is a value multiplied by a factor to be a sum. In addition, the second output command value PC2 is the sum of the residual power M2 of the second load and the denominator of the residual power M1 of the first load and the residual power M2 of the second load with respect to the absolute value of the second power PL2. The value multiplied by the factor to be

  As a result, the regenerative power of the regenerative vehicle traveling on the second feeder wire 104 is equally distributed to the power running vehicle traveling on the first feeder wire 102 and the third feeder wire 106 while at the same time the load It is possible to prioritize and operate a power interchange device with a large capacity.

  Case 8 is the case where the sign of the first power PL1 is negative, the sign of the second power PL2 is positive, and the sign of the third power PL3 is negative. In this case, the first output command value PC1 and the second output command are based on the detailed condition of the magnitude relationship between the absolute value of the second power PL2 and the absolute value of the sum of the first power PL1 and the third power PL3. Change the method of calculating the value PC2.

  Case 8-1 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is equal to or less than the absolute value of the second power PL2. In this case, the first output command value PC1 is a value obtained by multiplying the absolute value of the first power PL1 by a minus, and the second output command value PC2 is a value obtained by multiplying the absolute value of the third power PL3 by a minus .

  Case 8-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is a value obtained by multiplying the absolute value of the second power PL2 by a minus value, the numerator is the remaining power M1 of the first load, and the denominator is the remaining power M1 of the first load and the second It is a value multiplied by a factor which is the sum of the remaining capacity M2 of the load of. The second output command value PC2 is a value obtained by multiplying the absolute value of the second power PL2 by a minus value, the numerator is the remaining power M2 of the second load, and the denominator is the remaining power M1 of the first load and the second It is a value multiplied by a factor that is the sum of the remaining capacity M2 of the load.

  As a result, of the power consumed by the power running vehicle traveling on the second feeder wire 104, the regenerative power from the regenerative vehicle traveling on the first feeder wire 102 and the third feeder wire 106 can be borne by the power At the same time as supplying electric power without excess or deficiency, it is possible to preferentially operate the power interchange device with a large remaining capacity of the load.

  As described above, according to the second embodiment, the regenerative power generated by the second feeder wire 104 is equally distributed to the first feeder wire 102 and the third feeder wire 106, and Among the power interchange unit 109 and the power interchange unit 110, it is possible to preferentially use a power interchange unit having a large load remaining capacity. This makes it possible to prevent the operation stoppage due to the limit of the load of the power interchange device, to increase the operation rate of the power interchange device, and to utilize the regenerative power more effectively.

101: 1st substation 102: 1st feeder 103: 2nd substation 104: 2nd feeder 105: 3rd substation 106: 3rd feeder 107: 1st power interchange device 108: second power interchange device 109: first output command 110: second output command 111: control device 112: power consumption of first substation 113: power consumption of second substation 114: third Substation power consumption PL1: first power PL2: second power PL3: third power PC1: first output command value PC2: second output command value PR1: first rated output PR2: first Rated output 401 of 2: first current value 402: second current value

Claims (7)

A controller for controlling the interchange of power flowing to at least three or more feeding sections;
The control device is configured to transmit from a predetermined feeding section to another feeding section based on regenerative power obtained from the vehicle traveling in the feeding section and power running power consumed by the vehicle traveling in the feeding section. Controlling a power interchange device which interchanges the regenerative power;
The control device generates the rated output of the power transfer device, the remaining power value obtained from the temperature, the remaining power value obtained from the moving average of the output, the remaining power value obtained from the deterioration degree, or the power transfer device The railway power generation system characterized in that the control is performed such that the regenerative power is accommodated more than the other power interchange device with respect to the power interchange device having any one of the remaining capacity values obtained from the loads. In the railway feeding system according to claim 1,
A railway feeding system that performs control to transfer the regenerative power from a predetermined feeding section to another plurality of feeding sections or from a predetermined plurality of feeding sections to another feeding section. In the railway feeding system according to claim 1,
The power exchange apparatus further includes the power interchange apparatus interchanging the regenerative power.
The said control apparatus performs control instruction | command with respect to the said power interchange apparatus, The railroad feeding system characterized by the above-mentioned. In the railway feeding system according to claim 1,
The said control apparatus gives a control command to the said power interchange apparatus so that all the said regenerated electric power which is not larger than the said power running electric power may be consumed. In the railway feeding system according to claim 1,
The said control apparatus performs control instruction | command with respect to the said power interchange apparatus so that the said regenerative power more than the said power running electric power may be consumed for the said power running electric power, The railroad feeding system characterized by the above-mentioned. In the railway feeding system according to claim 1,
The railway station system, wherein a substation supplying power to the feeding section communicates information of the powering power from the supplied power to the control device. Based on the regenerative power obtained from the vehicle traveling in at least three feeding sections and the powering power consumed by the vehicle traveling in the feeding section, the predetermined feeding section to the other feeding sections from the predetermined feeding section. Control to exchange regenerative power,
The rated output of the power interchange device which interchanges the regenerative power, the remaining capacity value determined from the temperature, the remaining capacity value determined from the moving average of the output, the remaining capacity value determined from the deterioration degree or the power interchange device The railway power generation control method, wherein the control is performed such that the regenerative power is accommodated more than the other power interchange device with respect to the power interchange device having any one of the remaining capacity values obtained from the loads.