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对配电系统电能质量补偿装置的主电路进行了研究。比较了装置并联部分直流电源采用三相整流桥或三相脉宽调制 ( PWM)整流桥的优缺点 ;分析了并联侧输入取自电网侧或负载侧及并联侧所起的不同作用时对装置容量及性能的影响。并用仿真对所得的结论进行了验证。
The main circuit of power quality compensation device in distribution system is studied. The advantages and disadvantages of using three-phase rectifier bridge or three-phase pulse-width modulation (PWM) rectifier bridge in the parallel part of DC power supply of the device are compared. When the parallel input is taken from different sides of grid or load side and parallel side, The impact of capacity and performance. The simulation results confirm the conclusion.