JPH08232830A - Output control device for savonius windmill - Google Patents

Abstract

PURPOSE: To eliminate fluctuation following with wind speed by output, by fixing a pinion on a guide provided on a fixing plate, connecting the pinion to a motor, joining one end of a rack with the outside column of a blade, inserting the other end side thereof in the guide, screwing the other side in a pinion, and connecting a power generator control board to a motor. CONSTITUTION: In the output control device of a Savonius windmill, the guide 16 of a horizontal direction is arranged on the fixing plate 15 of a windmill, and a pinion 11 is fixed on the guide 16. One end of a rack 12 is connected to the column 17 of the outside of the blade 3 of the windmill through a bearing 13, and the other end side is inserted in the guide 16, and screwed in the pinion 11. A potentiometer 18 is connected to the rack 12, and connected to a power generator control board 14 through a potentiometer converter 19 and a slip ring 8. After that, a motor 9 is connected to the pinion 11, and connected to the power generator control board 14 through the slip ring 8. When the motor 9 is driven, the pinion 11 is rotated, the rack 12 is moved in the horizontal direction, the position of the column 17 is changed, and thereby, the wind receiving area of the blade 3 is changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an output control device for a Savonius wind turbine which is a vertical wind turbine.

[0002]

2. Description of the Related Art A conventional Savonius wind turbine is composed of a tower fixed to the ground, a rotor rotatably provided around the tower, a plurality of blades, and a fixing plate connecting the rotor and the blades. A gearbox was attached to the lower part of the rotor, and power was generated by a generator connected to this gearbox.

[0003]

In the conventional Savonius type wind turbine, there is a problem that the output varies depending on the wind speed. The present invention is intended to solve the above problems.

[0004]

In the output control device for a Savonius-type wind turbine of the present invention, a rotor is rotatably disposed on a tower, and a wing is disposed on the rotor via a fixing plate to form a Savonius. In a type wind turbine, a guide provided on the fixed plate, a pinion fixed to the guide and coupled to a motor, one end joined to an outer strut of the blade and the other end inserted into the guide and screwed to the pinion , And a generator control panel connected to the motor.

[0005]

In the above, a predetermined generator output is preset in the generator control panel, and when the wind speed changes while the Savonius wind turbine is operating and the generator output changes, the generator control panel increases or decreases. The amount of movement of the rack corresponding to is calculated, and the motor is driven.

When the motor is driven, the pinion is rotated to move the rack, and the curvature of the blade of the Savonius-type wind turbine is changed to change the air receiving area of the blade to obtain a predetermined generator output. The area where the wind can be received.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An output control device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3
The output control device of the present embodiment shown in is applied to a Savonius type wind turbine.

The Savonius-type wind turbine is composed of a tower 1 fixed to the ground, a rotor 2 into which the tower 1 is inserted and rotatably mounted around the tower 1, and a plurality of fixed one ends fixed to the rotor 2. It is formed by a plate 15 and a plurality of blades 3 fixed to the other end side of the fixed plate 15, respectively, and a generator 6 is connected to the rotor 2 via gearboxes 4 and 5. , Generate electricity.

In this wind turbine, the blades 3 receive wind energy,
The energy obtained thereby is converted into rotational energy that rotates around the tower 1 through the fixed plate 15 and the rotor 2, and the rotational energy is transmitted to the generator 6 through the speed increasers 4 and 5 and converted into electrical energy. It is to convert.

The output control device of the Savonius type wind turbine according to the present embodiment shown in FIGS. 1 to 3 has a horizontal guide 16 arranged on a fixed plate 15 of the wind turbine, a pinion 11 fixed to the guide 16, The bearing 1 is mounted on the pillar 17 on the outer side of the wind turbine blade 3.
A rack 12 connected at one end with the other end inserted into the guide 16 and screwed with the pinion 11 and connected to the rack 12 via a potentiometer converter 19 and a slip ring 8 to a generator control panel. It is provided with a potentiometer 18 connected thereto, and a motor 9 connected to the pinion 11 and connected to the generator control panel 14 via a slip ring 8.

In the above, when the motor 9 is driven, the pinion 11 is rotated, and when the pinion 11 is rotated, the rack 12 is moved in the horizontal direction, the position of the column 17 is changed, and the air receiving area of the blade 3 is changed. . Therefore, the generator 6
The output of can be controlled. In addition, the wing 3 is a column 17
The curvature changes due to the movement of, but it is assumed to have sufficient strength against this.

The output of the generator 6 is controlled by driving the motor 9 by the generator control board 14, and the control shown in FIG. 3 is performed while detecting the moving amount 1 of the rack 12 by the potentiometer 18. It is done according to the flow diagram.

That is, the output target value KWset is set in advance on the generator control panel 14, and the control panel 1
4 obtains the power difference ΔKW between the current output value KW and the output target value KWset, obtains the movement amount Δl of the rack 12 corresponding to this power difference ΔKW, then drives the motor 9 to set the upper limit value Lmax and the lower limit value Lmin. The rack 12 is moved within the limit of, and fluctuations in the generator output that occur in response to changes in wind speed are suppressed.

[0014]

The output control device for a Savonius-type wind turbine of the present invention has a guide provided on a fixed plate of the wind turbine, a pinion fixed to the guide, and one end joined to the outer column of the blade of the wind turbine. By including a rack whose side is inserted into the guide and screwed into the pinion, and a generator control panel connected to the motor coupled to the pinion, and having a structure capable of changing the wind-receiving area of the blades of the wind turbine, Since the output energy can be controlled by controlling the wind energy, it is possible to prevent overload by reducing the wind area at high wind speeds, and to maximize the efficiency at low wind speeds. Driving becomes possible.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a wind turbine according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an output control device according to the above embodiment.

FIG. 3 is a control flow diagram of the wind turbine according to the above embodiment.

[Explanation of symbols]

 1 Tower 2 Rotor 3 Blades 6 Generator 8 Slip Ring 9 Motor 11 Pinion 12 Rack 14 Generator Control Panel 15 Fixing Plate 16 Guide 17 Support 18 Potentiometer 19 Potentiometer Converter

Claims (1)

[Claims] 1. A rotor is rotatably disposed on a tower,
In a Savonius-type wind turbine in which blades are arranged on the rotor via a fixed plate, a guide provided on the fixed plate, a pinion fixed to the guide and coupled to a motor,
An output of a Savonius-type wind turbine characterized by comprising a rack, one end of which is joined to an outer strut of the blade and the other end of which is inserted into the guide and screwed into a pinion, and a generator control panel connected to the motor. Control device.