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分析了辅助逆变器的中压供电模式、并联供电模式及各自的技术特点,重点介绍了分散并联和集中并联2种并联供电方式的原理、并联过程及故障检测方法。综合来看,并联供电控制难度大些,而生产和维护难度则大大降低。
This paper analyzes the medium voltage power supply mode, parallel power supply mode and their respective technical characteristics of auxiliary inverter. The principle, parallel process and fault detection method of two parallel power supply modes of distributed parallel connection and centralized parallel connection are mainly introduced. Taken together, the control of parallel power supply is more difficult, and the difficulty of production and maintenance is greatly reduced.