南京航空航天大学学报（英文版）2004，Vol.21Issue(1)：1-6,6.
逆变器并联系统直流环流检测与抑制方法
DC LOOP-CURRENT DETECTING AND RESTRAINING METHODS FOR PARALLEL INVERTER SYSTEM
摘要
Abstract
DC component is contained in inverter output voltage due to many reasons such as the zero-point deviation of operational amplifiers and the differences between power switching transistors′ characteristics. For the parallel inverter system without output isolation transformers, the difference of DC components of the output voltage can cause large DC loop-current among modular inverters. Aiming at this problem, this paper studies several DC loop-current detecting and restraining methods. By digital adjustment with high precision on the DC components of reference sine wave, the DC components of inverter′s output voltage can be adjusted to restrain DC loop-current. Experimental results prove that the DC loop-current detecting and restraining methods have a good performance.关键词
直流环流/检测/数字调节/逆变器并联Key words
DC loop-current/detect/digital adjustment/parallel inverter分类
信息技术与安全科学引用本文复制引用
陈良亮,肖岚,严仰光..逆变器并联系统直流环流检测与抑制方法[J].南京航空航天大学学报（英文版）,2004,21(1):1-6,6.基金项目
Supported by National Natural Science Foundation of China (50337030) （50337030）
Aeronautical Science Foundation of China (01F52032). （01F52032）
