αβ坐标系下统一电能质量调节器直接控制策略的实现

Implementation of Direct Control Strategy Based on αβ Phases Stationary Coordinate for Unified Power Quality Conditioner

介绍一种αβ两相静止坐标系下统一电能质量调节器(UPQC)直接控制策略,提出将串联变流器控制成正弦电流源,将并联变流器控制成正弦电压源的控制方案。分析了αβ坐标下两轴变量间无耦合项不需要复杂的解耦控制过程。通过Matlab/Simulink仿真,证明了该控制方案的有效性。

A direct control strategy based onαβtwo phases stationary coordinate for Unified Power Quality Conditioner（UPQC）is proposed.The control scheme is simple and intuitive by contolling the series convertor as a sinusoidal current source and the parallel convertor as a sinusoidal voltage source.In theαβcoordinate system,there＇s no coupling term between different coordinate variables,so that the contol process is forthright without complex decoupling control.At last,the control scheme proposes effective by the results of simulation of MATLAB/Simulink.