摘要
基于瞬时无功理论的传统有源滤波器在三相四线制电路中不适用,文章针对这个问题,综合运用瞬时无功理论中的p-q方法和ipi-q方法,提出了一种新的基于瞬时无功理论的有效的三相四线制谐波检测新方法,将三相电流中的零序电流剔除,完善了p-q方法和ip-iq方法的不足,通过计算验证了该方法适用于任何三相电路,包括三相四线制电路,并且三相电压波形的畸变不影响检测结果的准确性。并用MATLAB仿真验证了该方法的准确性和有效性。该方法有效地解决了传统有源滤波器不适用于三相四线制电路的缺陷。
This paper analysis the active power filter and instantaneous reactive power theory.In order to let the active power filter could be used in 3-phase 4 wires circuits,a new method of harmonics detection is given in this paper,which is based on p-q method and ip-iq method of the instantaneous reactive power theory.This method remove the zero current,so it could be used in 3-phase 4 wires circuits and the result is accurate even if the voltage is distortion.The result of the simulation shows that the method is...
出处
《通信电源技术》
2008年第1期55-57,61,共4页
Telecom Power Technology
关键词
有源滤波器
瞬时无功
谐波
active power filter
instantaneous reactive power
harmonics
