变电站交直流轮换试验不间断电源装置研究

Research on AC/DC Alternating Test Uninterrusted Power Supply Device in Substation

变电站日常运维中,在固定的维护周期内,需要在不同电源之间切换,以确保双电源的可使用性、安全性以及完整性。虽然是双电源,但是在2种电源来回切换之间还是存在短暂的断电。文章结合现场实际进行分析,研究变电站交直流轮换试验不间断电源装置,设计供电旁路,有效避免变电站交直流系统轮换过程中出现间接性停电与设备冲击,同时设置完善电气闭锁逻辑,避免误操作导致的电源短路合环事故。

In the daily operation and maintenance of the substation,it is necessary to switch between different power sources within a fixed maintenance cycle to ensure the usability,safety and integrity of dual power sources.Although it is a dual power supply,there is still a brief power outage when switching back and forth between the two power supplies.Therefore,strictly speaking,the reliability of dual power sources is significantly enhanced compared to single power sources,but there is still a problem of intermittent power outages.we accord the actual situation on site to study the AC/DC alternating test uninterrusted power supply device in the substation,design a power supply bypass to effectively avoid indirect power outages and equipment impacts during the rotation experiment of the AC/DC system in the substation.At the same time,a complete electrical locking logic is set up to avoid power short circuit closing accidents caused by misoperation。