基于虚拟同步机功能的风机控制策略开发

Development of Wind Turbine Control Strategy Based on Virtual Synchronous Generator Function

为提高电网频率稳定性,扩大风电接入电网比例,开发了风机虚拟同步机功能。首先,分析风机储能特点,为风机VSG功能提供了理论支撑;其次,分析电网对风机调频的要求,为风机VSG功能开发提供了实施方案;然后,设计风机VSG控制算法,并分析了算法性能;最后,通过现场试验证明算法的有效性。试验结果表明,VSG功能可以满足电网的作用。

In order to improve the frequency stability of the power grid and expand the proportion of the wind power to the grid,the function of the wind turbine virtual synchronous generator is developed.Firstly,the characteristics of wind turbine storage was analyzed,providing the theoretical support for the VSG function;Secondly,the requirements of the power grid for frequency modulation were analyzed,which provided the implementation scheme for VSG function development;Thirdly,the VSG control algorithm was designed and its performance was analyzed;Finally,the effectiveness of the algorithm was proved by the field experiment.The experimental results show that the VSG function can play a stabilizing role in the power grid.