摘要
设计了一种新的综合电力滤波系统，它由无源滤波器和小容量有源滤波器串联构成，与被补偿的谐波负载并联连接，控制有源滤波器输出，使滤波器串联支路对各次谐波的阻抗都为零，大大提高了无源滤波器的滤波效果。介绍了综合电力滤波系统的主电路和控制电路，分析了滤波原理及控制方法。建立了一套实验系统，对整流负载产生的谐波用综合滤波装置进行消除谐波实验。通过对有源滤波器投入前后电网电流波形的比较，可以证明，所提出的综合电力滤波系统的滤波原理及控制方法是正确的，对负载产生的各次谐波具有良好的滤波效果。
A novel combined power filter system is developped. It consists of a small rated active filter and a passive filter which are connected in series with each other and installed in parallel with the compensated harmonic load. The active filter is controlled to make the series harmonic impedance of the passive and active filters equal zero, so as to improve the filtering characteristics of the passive filter. The main circuit and control circuit construction are introduced, the filtering principle and control strategy are discussed. A combined power filter test system is designed, which is used to eliminate harmonics of harmonic load. The experimental results prove that the filtering principle and control strategy of the combined power filter system are correct, and the filtering effect is perfect.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1999年第3期49-52,共4页
Journal of Tsinghua University(Science and Technology)
基金
国家攀登计划
