一种单相电力滤波器电路结构的设计  

Design of an electric circuit structure of electric power filter

作　　者：徐水源[1] 乔清合[2] 

机构地区：[1]黄石理工学院数理学院,湖北黄石435003 [2]黄石机电职业技术学院,湖北黄石435003

出　　处：《云南师范大学学报（自然科学版）》2008年第6期30-35,共6页Journal of Yunnan Normal University:Natural Sciences Edition

摘　　要：提出了一种单相并联混合型有源电力滤波器电路结构。该电路由有源滤波器与基波串联谐振支路并联再与无源滤波电路串联构成,用于抑制非线性整流负载产生的谐波电流流入电源侧。在该电路中,无源滤波器分担大部分抑制谐波和无功补偿的任务,减少了有源滤波器的容量;有源电力滤波器用于改善无源滤波器的滤波效果和抑制它与系统阻抗可能发生的谐振。理论分析和实验结果表明,该混合型有源滤波器充分发挥了无源滤波器和有源滤波器各自的优点,改善了无源滤波器的滤波性能,同时使有源滤波器不再承受基波电压,因此最大限度地减少了有源滤波器的容量,从而使有源电力滤波器能够应用于大功率场合。In order to restraint the harmonic current caused by nonlinear rectified load to flow into power supply, a novel single -phase shunt hybrid active power filter （APF）, in which an APF is connected in parallel with a fundamental harmonic series resonance branch then connected in series with a passive filter, is pro- In the proposed hybrid APF the passive filter shares the main portion of harmonic restraint and reactive power compensation ; the APF is used to improve the filtering effect of passive filter and to restraint the proba- ble resonance between passive filter and system impedance. The results from tests and theoretical analysis show that the proposed hybrid APF can make full use of the merits of APF and passive filter respectively and improve the filtering performance of passive filter, harmonic voltage, thus the capacity of APF can be the circumstance of high power. at the same time the APF does not bear the fundamental uttermostly reduced, therefore the APF can be used in

关 键 词：混合型有源电力滤波器 无源滤波器 基波串联谐振 无功补偿 谐波 电力电子技术 

分 类 号：TM711[电气工程—电力系统及自动化]