摘要
珠海唐家湾柔性交直流配网包括110 kV鸡山变电站、110 kV唐家变电站、±10 kV鸡山一换流站、±10 kV鸡山二换流站、±10 kV唐家换流站、±10 kV科技园降压换流站,2个交流站与3个换流站通过3条交流线路连接;3条直流线路通过±10 kV科技园降压换流站将3个换流站连接在一起,实现交直流功率灵活转换。各换流站直流控制保护设备具备对侧110 kV变电站10 kV 2M母线备用电源自投功能。当10 kV 2M实时负荷不大于18 MW时,若110 kV变电站的#2主变本体故障或高压侧故障导致其低压侧10 kV 2M母线失压,10 kV 2M母线负荷全部转由换流站供电,由换流站的直流控制保护装置识别运行状态并通过控制模式切换实现备用电源自投功能。
The flexible AC/DC distribution network in Zhuhai Tangjiawan includes 110 kV Jishan Substation,110 kV Tangjia Substation,±10 kV Jishan-Conversion Station,±10 kV Jishan two converter station,±10 kV Tangjia converter station,±10 kV technology park step-down converter station,two exchange stations and three converter stations are connected by three AC lines;three DC lines are stepped down by±10 kV technology park The converter station connects the three converter stations together to achieve flexible conversion of AC and DC power.The DC control protection equipment of each converter station has the self-injection function of the standby power supply of the 10 kV2M busbar of the opposite 110 kV substation.When the real-time load of 10 kV 2M is not more than 18 MW,if the#2 main transformer body failure or high-voltage side fault of the 110 kV substation causes its low-voltage side 10 kV2M busbar to lose pressure,the 10 kV2M busbar load is all converted by the converter station,and the DC of the converter station The control protection device recognizes the operating state and implements the standby power self-injection function by the control mode switching.
出处
《电力系统装备》
2019年第24期47-48,共2页
Electric Power System Equipment
关键词
负荷
控制
互联网
load
control
internet
