电工技术学报2012,Vol.27Issue(6):83-89,7.
电流型PWM整流器输出滤波器设计方法
Output Filter Design Method in Current-Source PWM Converters
摘要
Abstract
The power accumulator battery is sensitive to the charging current. But it has tinny inner resistance and opposing electromotive force, and ordinary converters will output super standard ripple wave when charging the power accumulator battery. The current-source converter can output steady current, but its capacity is limited by the energy storing inductance in the DC side. To resolve the above-mentioned problems, this paper compares the decay characteristics between Butterworth and Chebyshev filter in two aspects which include the order setting when the two filters are of the same stop-frequency decay and the filtering result and response speed when the two filters are of the same order , barrier frequency and decay. Based on the conclusion above, the DC filter parameter design method in the current-source converters is proposed. This method adopts filter parameters according to the appropriate arithmetic to reduce the energy storing inductance in the current-source converter. The voltage drop of the inductance is decreased and the system energy transfer efficiency is increased. This two power accumulator battery charging systems are designed. Simulation and test results demonstrate the correctness and feasibility of the filter design method.关键词
电流型PWM整流器/谐波/电池充电/滤波器/纹波Key words
Current-source PWM converter/harmonics/battery charger/filter/ripple分类
信息技术与安全科学引用本文复制引用
康伟,张丽霞,刘春艳..电流型PWM整流器输出滤波器设计方法[J].电工技术学报,2012,27(6):83-89,7.基金项目
中央高校基本科研业务费专项资金(12CX04066A)资助项目 ()