In large and medium scale hydropower stations,the wiring of the auxiliary power system is complex,and the action logic of the automatic switchover backup is also quite complicated.Also,the coordination between the actions of the two-level automatic switchover backups should be considered.A study is thus carried out on the design principles and the action logic of the automatic switchover backup for the 10 kV and 0.4 kV auxiliary power systems in a pumped stor-age power station.The setting values and the action time coordination scheme are proposed for the automatic switchover backups of the two-level auxiliary power systems,which can ensure the safe and reliable operation of the auxiliary power systems in the station.
关键词
抽水蓄能电站/厂用电系统/备自投/设计原则/动作逻辑
Key words
pumped storage power station/auxiliary power system/automatic switchover backup/design principles/action logic
维普
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