【作者】 史伟伟； 刘永强；

【Author】 Shi Weiwei Liu Yongqiang Dept. of Electronic Engineering, Huaihai Institute of Technology, Lianyungang 222005, China

【机构】 淮海工学院电子工程系；

【摘要】 本文分析了死区效应对串联形电能质量补偿器的影响情况。串联型电能质量补偿器通过串联变压器向电网中注入一个和电网电压所含畸变成分相同的电压。因此理想情况下可以使负载端电压保持纯正弦的波形和恒定的幅值。但串联型电能质量补偿器的开环结构使其补偿效果受到死区效应的影响。本文通过分析,定量描述了死区效应对SPQC补偿效果的影响情况。仿真结果验证了文中分析和鲒论的正确性和有效性。更多还原

【Abstract】 In this paper, the influence of dead-time effect on series power quality compensator (SPQC) is analyzed. SPQC injects a voltage, which is equal to the distorted component in supply voltage via series transformer, so the disturbances of the voltages can be cancelled and the waveform of the voltages at load side is sine-shaped, and its amplitude is kept constant ideally. But the open-loop structure of SPQC makes the compensating performance deteriorated by the dead-time effect. Through analysis, the deteriorating degree of dead-time effect on SPQC is given quantificationally. Simulation results show the validity and correctness of all the analysis and conclusions.更多还原