Control system and control method of load of wind turbine generator

A control system and technology for wind turbines, applied in the control of wind turbines, wind power generation, wind turbines, etc., can solve the problems of damage to the load of wind turbines, effectively adjust the wind turbines, etc., to reduce the gravity load, reduce the risk of overload, The effect of improving efficiency

Active Publication Date: 2013-06-19
DALIAN DESIGN INST CO LTD CHINA FIRST HEAVY IND +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional control system of the wind turbine may not be able to adjust the direction of the wind turbine quickly enough, accurately and effectively to avoid the load that may damage the wind turbine, so a more effective method and system is very necessary

Method used

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  • Control system and control method of load of wind turbine generator
  • Control system and control method of load of wind turbine generator
  • Control system and control method of load of wind turbine generator

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Embodiment Construction

[0026] The invention will be further described below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, the wind turbine control system 2 uses the wind direction sensor 8 and the wind speed sensor 7 to judge the load acting on the wind turbine, and take corresponding actions to protect the wind turbine. In order to determine the yaw error more specifically, a low-pass filter is used to calculate the yaw error. The operator is to average the wind direction and the cabin orientation through an exponentially weighted shift. Wind speed may be determined by cup anemometers, lasers, or ultrasonics, which provide instantaneous wind speeds or average calculated wind speeds over a predetermined period of time. The tower strain sensor 1, the wind speed sensor 7, the wind direction sensor 8, the rotor speed sensor 9 and the blade strain gauge 10 feed back the detected information to the fan control system 2, and the fan control system 2 will send the bra...

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Abstract

The invention discloses a control system and a control method of load of a wind turbine generator. The control system comprises a fan control system, a brake control system, a converter control system, a blade control system, a yawing driven control system, a tower strain sensor, an air speed sensor, a wind direction sensor, a rotor speed sensor and a blade strain gage. The fan control system is respectively connected with the brake control system, the converter control system, the blade control system, the yawing driven control system, the tower strain sensor, the air speed sensor, the wind direction sensor, the rotor speed sensor and the blade strain gage through data lines. According to the control system, under the condition of large yawing error at high wind speed, the running mode of the wind turbine generator is changed through the fan control system so that the load of the wind turbine generator can be within a normal range, and the load of the wind turbine generator can be reduced. The control system reduces the load of the control system, decreases the risk of overload of the wind turbine generator and greatly reduces probability of accidents of the wind turbine generator.

Description

technical field [0001] The invention relates to the field of control of wind power generators, in particular to a load control system of wind power generators and a control method thereof. Background technique [0002] In order to protect the wind turbine from damage due to overload, some control subsystems are used in the design of the wind turbine, such as using the blade control system, brake control system and yaw control system to limit the rotor speed and reduce the structural load. Traditional wind turbine control systems may receive information from one or more wind direction sensors to control the orientation of wind turbines, such as: anemometer, three-dimensional ultrasonic anemometer, sound speed detection system (SODAR) or laser detection system (LIDAR), these sensors Basically, they are fixed on the structure of the wind turbine and rotate around its axis with the wind turbine to measure the angle error between the rotation axis of the wind turbine and the wind...

Claims

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Application Information

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IPC IPC(8): F03D7/00
CPCY02E10/72
Inventor 方涛宋清玉高德忠
Owner DALIAN DESIGN INST CO LTD CHINA FIRST HEAVY IND
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