动态电压恢复器控制策略的研究

介绍了动态电压恢复器的基本结构和工作原理。在此基础上，使用三相瞬时无功dq检测算法和前馈控制加反馈控制的混合控制策略来控制动态电压恢复器，并进行了系统的仿真。仿真结果验证了三相瞬时无功由检测算法和控制策略对动态电压恢复器补偿电压跌落具有良好补偿特性，达到了保护负荷、治理电压跌落的目的。

The Research of Dynamic Voltage Restorer's Control Method

This paper introduced the DVR system＇s basic structure and principle. In order to control DVR, use three phase dq transformation based on instantaneous reactive power theory in detection method, use feed - forward control and add the reaction control to the mixture control in the control strategy, system is simulated of MATLAB software. The results of the simulation have proved that detection method and control strategy is good for DVR to compensate voltage sag and protect the loads.