Wind generating set H-infinite controller based on linear parameter-varying gain scheduling

Abstract

The invention relates to a controller for enhancing the dynamic stability of a system, which belongs to the field of automatic control and particularly relates to a wind generating set H-infinite controller based on linear parameter-varying gain scheduling. A control system consists of a GOT man-machine interface (1), a main control circuit (2), a driving circuit (3), a U / I detection circuit (4), a PLC (Programmable Logic Controller) (5), a protection circuit (6), a motor (7), a speed detector (8) and a speed detection circuit (9). According to the wind generating set H-infinite controller, a linear parameter-varying gain scheduling control algorithm and a robust H control theory are adopted, so that the stability, interference resistance and response speed of a wind power system are enhanced, a wind driven generator has high robust stability and dynamic performance, good fan control is realized, and the output power of the wind generating set is further increased.

Description

Technical field [0001] The invention relates to an automation controller, in particular to a wind power generating set H based on linear variable parameter gain scheduling Controller. Background technique [0002] Because wind energy has the characteristics of low energy density, randomness and instability, wind turbines are complex multi-variable nonlinear uncertain systems. Therefore, control technology is the key to safe and efficient operation of the turbines. [0003] There are many control methods for wind turbines, and various control methods have been successfully applied. However, as the capacity of wind turbines increases, the control becomes more and more complicated, especially the requirements for the dynamic stability of the wind turbines are getting higher and higher. For the division of different types of wind turbine operating intervals and large-scale changes in model parameters, turbulent changes in input wind, multi-variable systems that are difficult to contr...

AI Technical Summary

Problems solved by technology

However, as the capacity of wind turbines increases, the control becomes more and more complex, especially the requirements for the dynamic stability of the wind turbines are getting higher and higher.

For the division of different types of wind turbine operating intervals, large-scale changes in model parameters, and turbulent changes in input wind, it is difficult to control multi-variable systems. A single PID conventional control algorithm is difficult to meet the requirements of stable and reliable operation. Therefore, its control The result is often excessive overshoot or fluctuation, which cannot guarantee a certain robust stability and reliable performance

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