摘要
分析了限流电抗器对系统的影响,提出了将有源滤波器并联于限流电抗器负载侧对限流电抗器进行补偿的新方法。在此方法中,有源滤波器在补偿了负载上的谐波和无功后,还能够补偿消耗在限流电抗器上的无功,使限流电抗器负载侧的电压维持额定电压。对所提方法进行了PSCAD仿真研究,并在此基础上进行实验,结果证明了理论分析的正确性,且流入系统的谐波含量大幅减小。
The effect of current-limiting inductor on power system is analyzed and a method to compensate the voltage sag caused by current-limiting inductor and the harmonics and reactive power of system is proposed,which connects the active filter in parallel to the current-limiting inductor at load side. The active filter compensates not only the harmonics and reactive power of load ,but also the reactive power wasted by the current-limiting inductor to keep the load voltage stable at rated value. Simulation with PSCAD and experiment validate the correctness of theoretical analysis and show that the harmonics into system is greatly reduced.
出处
《电力自动化设备》
EI
CSCD
北大核心
2013年第4期120-124,共5页
Electric Power Automation Equipment
关键词
限流电抗器
有源滤波器
无功功率
补偿
谐波分析
current-limiting inductor
active filters
reactive power
compensation
harmonic analysis
