LCL滤波型风电并网变流器的研究

摘要

介绍了LCL滤波型风电并网变流器的主电路拓扑结构和数学模型,提出了采用电网电流反馈闭环控制,实现电网侧电流闭环的有功、无功功率解耦的控制策略；采用MATLAB(R2010a)建立了系统仿真模型.仿真结果及试验结果表明,采用该控制策略,对LCL滤波型风电并网变流器进行控制的有效性.%The system configuration and mathematical model of grid-connected converter with LCL-type filter were introduced. A novel control strategy was introduced which adopted grid current feedback control to decouple active and reactive power components. And then based on MATLAB (R2010a) , system simulation model was established. Finally, the simulation experiment and practical result demonstrate effectiveness of this kind of control strategy.