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A wind turbine speed control method to improve environmental adaptability

A technology for wind turbines and environmental adaptability, which is applied in the control of wind turbines, wind turbines, and combination of wind turbines, etc., can solve the problems of not realizing the power output of the generator, neglecting the working characteristics of the generator, etc., to improve safety and efficiency. Environmental adaptability, easy operation, and the effect of improving system life

Active Publication Date: 2021-11-16
XEMC WINDPOWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it ignores the working characteristics of the generator itself, that is, it does not achieve the maximum power output of the generator at the same hub speed level

Method used

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  • A wind turbine speed control method to improve environmental adaptability
  • A wind turbine speed control method to improve environmental adaptability
  • A wind turbine speed control method to improve environmental adaptability

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Experimental program
Comparison scheme
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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] Such as figure 1 As shown, a wind turbine control system includes a torque controller, a pitch controller, and a speed switching controller. The torque controller is connected to the wind turbine, the pitch controller is connected to the wind turbine, and the speed switching control The controller is connected with the wind turbine, the torque controller and the pitch controller.

[0037] The wind turbine receives the TorqueDemand torque given signal from the torque controller and the PitchAngleDemand signal from the pitch controller, and guides the action of the actuator according to this signal. The wind turbine simultaneously outputs Torque torque, RotorSpeed ​​hub speed, and PitchAngle blade pitch angle signals to the torque controller, pitch controller, and speed switching controller. In addition, the speed switching controller also receiv...

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Abstract

The invention discloses a method for controlling the speed of a wind power generator to improve the environmental adaptability. Firstly, it is judged whether there is a need for switching the speed of the wind power generating set. If there is no switching signal, the wind power generating set operates normally. In the working mode, if the wind turbine is in the preferred rated speed operation control mode, the set rated speed is gradually switched from the preferred rated speed to the transitional speed Ⅰ, and then gradually switched from the transitional speed Ⅰ to the secondary rated speed. If the wind turbine is in the secondary rated speed In the speed operation control mode, the rated speed is set to gradually switch from the secondary rated speed to the transitional speed II, and then gradually switch from the transitional speed II to the preferred rated speed. The invention enables the wind power generator to change its rated speed smoothly and gradually by adjusting pitch control and torque control during the running process of the wind power generator, the speed transition process is smooth without jumping, and the safety and environmental adaptability of the unit are improved.

Description

technical field [0001] The invention relates to the field of wind power, in particular to a method for controlling the speed of a wind power generator to improve environmental adaptability. Background technique [0002] One of the current research focuses on large-scale wind turbines is to reduce material costs and improve the environmental adaptability of wind turbines. The key to reducing the cost of materials is to reduce the load of each key component of the wind turbine, so as to reduce the weight of these key components and improve the reliability and service life of the equipment. However, actual external factors such as wind turbulence, wind shear, tower shadow effect, and yaw deviation will have a significant impact on the impellers of large wind turbines, and when the diameter of the current wind turbine rotor design increases, the load change will become more obvious. [0003] For wind turbines located in complex terrain, the layout of the wind turbines is close ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/02F03D7/04F03D7/00F03D9/25
CPCF03D7/00F03D7/0224F03D7/0276F03D7/042F03D9/25Y02E10/72
Inventor 张硕望黄凌翔
Owner XEMC WINDPOWER CO LTD
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