Electrical servo control system for umbrella-shaped wind turbine

Abstract

The invention discloses an electrical servo control system for an umbrella-shaped wind turbine, and mainly relates to the technical field of wind power generation. The system involves a monitoring unit, a negative feedback measuring unit, a control unit, a driving unit, a power unit and an execution unit, wherein the monitoring unit is used for monitoring the power output of the umbrella-shaped wind turbine in the operation process to obtain an output value; the negative feedback measuring unit is used for receiving the output value and obtaining a first feedback signal through signal processing, and a driving signal of the driving unit is collected, and a second feedback signal is obtained through the signal processing; the control unit is used for receiving the first feedback signal andthe second feedback signal, and resolving the first feedback signal and the second feedback signal into a control signal; the driving unit is used for receiving the control signal and converting the control signal into a driving signal; the power unit is used for receiving the driving signal, and outputting mechanical energy corresponding to the driving signal; and the execution unit is used for utilizing the mechanical energy for changing the blade angle of the wind wheel. The control method based on the classic control algorithm has the advantages that the power monitoring requirement of thewind turbine generator with the umbrella-shaped adjusting mechanism is met, and the purpose of active power control is achieved.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to an electrical servo control system for an umbrella wind turbine. Background technique [0002] At present, wind turbines can be divided into active control and passive control according to the control mode. [0003] (1) Active control: The variable pitch system is an active power control system. The wind turbine has a complete power output detection system, which can monitor the output power in real time and compare it with the rated power, and change the blade pitch angle to achieve stable output power. the goal of. However, small and medium-sized wind turbines have a small nacelle, and it is not convenient to install a unified pitch control system, so the pitch control system is not suitable for small and medium-sized wind turbines. The variable eccentricity wind turbine also belongs to the active power control wind turbine. It actively adjusts the eccentricity ...

AI Technical Summary

Problems solved by technology

[0011] However, the current existing power control methods mainly have shortcomings such as slow response and inaccurate action. Especially in strong winds and gusts, even if the passive control mechanism operates, it cannot guarantee the stability of the output power and the safe operation of the unit. Frequent gusts The area also greatly increases the fatigue loss of the mechanical structure, which is not conducive to the safe operation of the unit

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