Abstract:

Wind power industry has been rapidly increasing in recent years. With the warranty of wind turbine expired, operation maintenance is critical, especially the fan blade shimmy was already one of the main causes of wind turbine unit failure. To solve the problem of fan blade shimmy, minimum and maximum linear quadratic Guass optimal control theory was indicated. This method using EulerianLagrange equation of the vibration of the fan blade system mathematical model is established, and the minimum and maximum LQG controller scheme design. The simulation results show that the controller has good control effect to blade shimmy, reach the wind generator to reduce failure rate, to enhance the efficiency of the wind power generating units.

Key words:

wind turbine unit, fan blade, shimmy, fault rate, simulation study