Analysis of Circulating current in Two Parallel-Connected AC/DC/AC Converter

被引：0
|
作者：
Maheshwari, Ramkrishan [1 ]
机构：
[1] Indian Inst Technol, Dept Elect Engn, New Delhi, India
来源：
2019 21ST EUROPEAN CONFERENCE ON POWER ELECTRONICS AND APPLICATIONS (EPE '19 ECCE EUROPE) | 2019年
关键词：
Voltage-source inverters (VSI); AC/AC converter; Pulse-width modulation (PWM); INVERTERS;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Parallel-connected ac/dc/ac converters are used to increase power capability and have redundancy in high power applications. However, due to parallel connection, there exists a circulating current which does not contribute to the ac side load or source currents and causes extra losses. This paper analyses the circulating current for two parallel-connected ac/dc/ac converter system. The ac/dc/ac converter system may have separate dc-links for each ac/dc/ac converter or a common dc-link. In both cases, the circulating currents are analyzed in this paper. The system with and without common dc-links are simulated, and the comparison of the circulating current and total ac side source and load currents in both cases are presented.
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页数：7
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