基于虚拟同步控制的双馈式风机组并网控制策略的仿真分析

针对双馈式风电机组经出口逆变器并网时缺乏惯性和阻尼会导致电网稳定性受到冲击的问题，首先简述了基于虚拟同步控制的双馈式风机整体控制策略；然后分别介绍了整体控制策略中的转子侧和网侧逆变器的控制策略，并搭建了含网侧虚拟同步控制的双馈式风机组模型；最终针对电网的故障工况及不同运行风速，通过MATLAB/Simulink对该模型进行仿真分析，与原始的双馈式风机模型仿真结果进行对比。验证了含网侧虚拟同步控制的双馈式风机比采用传统控制策略的双馈式风机组具有更优异的调节特性。

Simulation analysis of grid connected control strategy of doubly fed wind turbine based on virtual synchronization control

In order to solve the problem that the stability of the power grid will be affected by the lack of inertia and damping when the double fed wind turbine is connected to the outlet inverter, this paper first describes the whole control strategy of the doubly fed fan based on the virtual synchronous control. Then the control strategies of the rotor-side inverter and the grid-side inverter in the overall control strategy are introduced respectively, and the double-fed fan unit model with grid-side VSG control is built. Finally, the simulation analysis of the model is carried out through MATLAB/Simulink for the fault condition and different running wind speed of the power grid, and the simulation results of the original double fed fan model are compared and analyzed. It is verified that the double-fed fan with grid-side VSG controlhasbetter regulationcharacteristicsthan thedouble-fed fan.