电力系统及其自动化学报2019，Vol.31Issue(4)：56-61,6.DOI:10.19635/j.cnki.csu-epsa.000044
无谐波检测控制的三电平APF死区效应补偿策略
Compensation Strategy of Dead-time Effect for Three-level APF under Non-harmonic Detection Control
摘要
Abstract
To attenuate the dead-time effect of a three-level active power filter(APF)under non-harmonic detection control based on the feedback of compensation current,a compensation current calculation method for a three-level APF is proposed,which is applicable for the non-harmonic detection control. Through analyzing the voltage on the APF filter inductance in different switching states,the compensation current is calculated.Moreover,the operation accuracy?is improved by using a cascaded delayed signal cancellation(CDSC)filter,then the space vector pulse width modula?tion(SVPWM)signal is corrected based on the calculated compensation current.Simulations are conducted using Mat?lab/Simulink,and results show that this method not only avoids a large number of dead zones,but also eliminates unnec?essary switches and improves the filtering effect of APF.关键词
无谐波检测/三电平/有源电力滤波器/死区效应Key words
non-harmonic detection/three-level/active power filter(APF)/dead-time effect分类
信息技术与安全科学引用本文复制引用
刘映竹,孟润泉,王磊,王祺,孙宝鑫..无谐波检测控制的三电平APF死区效应补偿策略[J].电力系统及其自动化学报,2019,31(4):56-61,6.基金项目
国家自然科学基金资助项目(61271321,61573253) （61271321,61573253）
天津市科技支撑计划重点资助项目(14ZCZDS F00025) （14ZCZDS F00025）
太原工业学院科学基金资助项目(2018LG04) （2018LG04）
