JPS6024415B2 - Equivalent wind power calculator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an equivalent wind power calculator for estimating the wind power that can be converted into electric power at any point.

Currently, specific measures are being taken to promote energy issues by gathering the collective will of the people in each country's environment based on international agreements. The greatest interest is in its use as a complementary practical energy source.

However, wind energy is proportional to the cube of the wind speed, so if there is a 10% error in the wind speed, the output of the wind turbine will be increased to a 33% error.Furthermore, the wind speed fluctuates widely, the wind direction is not constant, and the energy density is It is difficult to accurately grasp the situation, as it is small and changes depending on the area, topography, altitude, etc. Therefore, research on wind plays a large role in wind energy utilization planning. For example, in the construction of the Smith-Putnam power generation wind turbine, which had the world's largest capacity of 125 discs and was built on the summit of Mt. Guandoba in Vermont, U.S.A. in 1941, the site was carefully selected before the final construction site and design of the wind turbine were decided. Painstaking efforts are being made to understand the wind conditions there.
The expected use of wind energy in Japan in the future is that many small wind power generators will be installed and used at each location.

In such cases, it is impossible to design a wind turbine based on detailed data due to cost and other reasons, but it is possible to use a simple method to measure the amount of wind power that can be used at a particular point and convert it into electricity. Establishing technology to estimate the amount of energy has been a concern for people concerned with wind power generation. The present invention was made in view of the above circumstances.It is an object of the present invention to provide an equivalent wind power calculator that can easily calculate the wind power at a particular point.

The present invention will be described in detail below with reference to the drawings. FIGS. 1 to 4 show an embodiment of the present invention, and the reference numeral A in the figures indicates an upper horizontal axis type rotor blade section. At the lower part of the upper rotary blade part A, there is provided a lower hard shaft type rotor part B, and further below that, there is provided a mechanical part C that converts the energy generated by the rotary blade parts A and B into electric power or other power. . Further, a vertical rotation axis ○ is provided passing through these upper rotary blade part A, lower rotary blade part B, and mechanical part C. The upper rotary blade part A is provided with an upper support frame la that supports the vertical rotation axis D above, and the base of the upper support frame la is an upper support fixed to the upper plate 2a of the lower rotary blade part B with bolts. body l
b is connected to the brake control mechanism lc so as to be able to make 1300 turns. Further, a horizontal rotation shaft lf is rotatably attached to the arms ld and le extending left and right upward from the upper end of the upper support frame la. Two-blade different-phase double-row type wings 1g and lh corresponding to normal and reverse wind directions are fixed in a quadratic symmetrical shape with a shift of . A miter gear 11 that applies a driving force to the vertical rotation axis D is provided at an intermediate portion of the horizontal rotation axis lf. In addition, the arms ld and le extending upward to the left and right are provided with two gas guide plates li,
lk is provided symmetrically and perpendicularly to the horizontal rotation axis lf. As shown in FIGS. 1 and 2, the lower rotary blade section B has
8 formed by andals and bolts and fixed horizontally to the upper and lower ends of the two vertically provided legs 2b and 2c.
Square plates 2a and 2d are provided, and bearings 2e and 2f for supporting the vertically extending rotation axis D are provided on the plates 2a and 2d.

Between these bearings 2e and 2f are upper and lower bearings 6 fixed to the rotating shaft D.
A helical three-winged wing 2h attached via a book arm 2g is provided. The mechanical part C is provided with a lower frame 3b having a plurality of circumferentially long holes 3a for use as V-belt brake holders and the like, which also serve as ventilation holes, around the four circumferences.

This lower frame body 3b has an upper end flange 3c as a lower rotor blade portion B.
is fixed to the lower plate 2d with bolts, and the lower end flange 3d
is fixed to the foundation 4, and supports the upper rotor section A and the lower rotor section B. A collective input energy storage flywheel 3f having a V-belt groove 3e on the rotating shaft D inside the lower frame 3b drives a generator 3g attached to the outside of the lower frame 3b via the V-belt. Obsessed. Further, a pulse emitting roller lever switch 3h for counting the number of rotations of the rotating shaft D is provided inside the lower frame 3b. In the equivalent wind power calculator according to the present invention, a double block flake 5 as shown in FIGS. 3 and 4 is attached in place of the flywheel 3f provided in the lower frame 3b of the mechanical part C of the wind power generator having the above configuration. It is something that

As shown in FIG. 4, the compound block brake 5 has two brake levers 5c, one end of which is secured by a pin 5a and the other end of which is provided with a spring coil 5b biased to a predetermined force, which are connected to a rotating koji D. A fixed brake chest 5d is held down via a brake block 5e. A plurality of temperature detection ends 5f are embedded in the brake block 5e in close proximity to the brake body 5d. Although not shown in FIGS. 3 and 4, a pulse emitting roller lever switch 3h for counting the number of rotations of the vertical rotating shaft D is provided. Next, the operation of the equivalent wind power calculator configured as above will be explained.

Since general environmental airflow always occurs in the forward and reverse directions, the equivalent wind power calculator according to the present invention is installed at the measurement point so that the central axis direction of the horizontal rotation axis lf of the upper rotor blade part A coincides with the direction of the above-mentioned forward and reverse airflow. do.

The horizontal rotation axis lf of the gap upper rotor blades 1g and lh is severely affected by output changes due to oncoming vehicles, but the wind direction is left and right.
occurs under the action of the horizontal axis lf of the upper support l
The upper support frame la is controlled by the brake control mechanism lc of b.
They are connected to each other so that they can turn at 300°, and the power set (force component effect) can only be used in the 30° turn, and this turning can be sufficiently regulated with a brake set. In addition, the feature of adapting to wind speed changes is arranged in multiple rows with different phases to complement and collect the self-concession effect of the volumetric fluid, and the two gas-conducting plates li and lk are used to normalize excess flow, so the two The functions of the blades can be equiset. Further, the three vertical blades 2h in the helical arrangement in the lower rotary blade section B also have a reduced function, but their turning function is aggregated under volumetric flow. Note that these three blades can easily increase the guiding area ratio and increase the turning ability. Wings 1g and l devised as equivalent sets as described above
It can be said that the driving force of the vertical rotating shaft D driven by the helical-arranged blades 2h and 2h represents the equivalent amount of wind power at that point. ), this rotation axis D
A simple double block brake 5 as shown in FIGS. 3 and 4 is provided, and a predetermined pressure is applied by a spring 5b to generate a predetermined frictional force between the brake body 5d and the brake block 5e, and the rotational speed at that time is By measuring and passing it through a computer, the wind energy equivalent can be transmitted digitally, so the amount of wind energy can be accurately evaluated and integrated.

At this time, the frictional force tends to decrease with rotational speed, but within the range of normal measured wind force, the rotational speed may be adjusted by increasing or decreasing the number of springs 5b. Furthermore, since the temperature inside the brake block 5e changes approximately in proportion to the wind force, it is also possible to measure the equivalent wind power amount. By measuring the wind power at each point using this equivalent wind power calculator, you can easily grasp the available wind power, so even when installing a wind power generator with a different structure, you can easily calculate the wind power and the actual wind power. If you obtain a comparative value of the wind power collective force of the equipment, you can not only judge the superiority of the installation point but also estimate the usable wind power, and when using a cooperative power generation equipment of the type of this equivalent wind power calculator, it is extremely easy to use. It is possible to accurately and easily predict the amount of power that can be generated. As described above, the equivalent wind power calculator according to the present invention has the same shape as a wind power collective conversion device model that generates a low amount of highly variable energy in units of volume, and can be easily installed by anyone anytime, anywhere. can be clearly calculated.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional front view of a wind power generator using an embodiment of the impeller used in the equivalent wind power calculation according to the present invention, and FIG. 2 shows the shape of the chest of the lower rotor blade section and the upper and lower plates, FIG. 3 is a side view showing the structure of the equivalent wind power calculator according to the present invention, and FIG. 4 is a double block. FIG. A... Upper rotor blade section, B... Lower rotor blade section, C...
...Mechanical part, D... Vertical rotation axis, la...
... Upper support frame, lb... Upper support, lc
...Brake control mechanism, ld, le...Arm, lf...Horizontal rotation axis, 1g, lh...
...Forward/reverse wind direction counterwing, l i...miter gear, li, lk...gas guide plate, 2a, 2d...
...Octagonal board, 2b, 2c...Angle leg,
2e, 2f...Bearing, 2g...6 arms, 2h...3 helical blades, 3a...
・Long hole, 3b...Lower frame, 3c...
Upper end flange, 3d...Lower end flange, 3h.
...Roller lever switch, 5...Double block brake, 5a...Pin, 5b...Spring coil, 5c...Brake lever, 5d...Brake body, 5e...Brake block, 5f ...Temperature detection end. Figure 4 Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. A brake that is attached to the rotating shaft of a blade wheel that is rotated by wind power, or a rotating shaft that is rotated by the rotating shaft via a gear, and that suppresses the rotation of the rotating shaft with a predetermined frictional force, and the rotation of the rotating shaft. An equivalent wind power calculator characterized by having a mechanism for measuring the number or rotational speed.