电力与能源
電力與能源
전력여능원
Power and Energy
2014年
5期
583-586,590
,共5页
分区电网%短路电流%电压稳定%安全保障
分區電網%短路電流%電壓穩定%安全保障
분구전망%단로전류%전압은정%안전보장
Regional power system%Short circuit%Voltage stableness%Security
为了控制系统短路电流，上海电网实施500 kV/220 kV电网解环运行，并形成以围绕500 kV变电站为中心的若干个分区电网。分析了影响分区电网安全、稳定运行的主要因素。从分区电网规模、分区电网动态无功配置和分区联络等角度，提出了提高分区电网供电安全的3条措施：一是根据上海500 kV电网短路电流水平，合理控制分区电网规模以及分区电网内电源装机容量，以适应上海电网发展需要；二是加强现有设备运行管理的同时，有计划地配置动态无功电源，提高电网电压稳定水平；三是加快分区联络通道的建设，增强事故支援能力，合理安排相邻供电分区的重叠供电范围，提升上海电网的双电源供电级别，提高分区电网的供电可靠性。
為瞭控製繫統短路電流，上海電網實施500 kV/220 kV電網解環運行，併形成以圍繞500 kV變電站為中心的若榦箇分區電網。分析瞭影響分區電網安全、穩定運行的主要因素。從分區電網規模、分區電網動態無功配置和分區聯絡等角度，提齣瞭提高分區電網供電安全的3條措施：一是根據上海500 kV電網短路電流水平，閤理控製分區電網規模以及分區電網內電源裝機容量，以適應上海電網髮展需要；二是加彊現有設備運行管理的同時，有計劃地配置動態無功電源，提高電網電壓穩定水平；三是加快分區聯絡通道的建設，增彊事故支援能力，閤理安排相鄰供電分區的重疊供電範圍，提升上海電網的雙電源供電級彆，提高分區電網的供電可靠性。
위료공제계통단로전류，상해전망실시500 kV/220 kV전망해배운행，병형성이위요500 kV변전참위중심적약간개분구전망。분석료영향분구전망안전、은정운행적주요인소。종분구전망규모、분구전망동태무공배치화분구련락등각도，제출료제고분구전망공전안전적3조조시：일시근거상해500 kV전망단로전류수평，합리공제분구전망규모이급분구전망내전원장궤용량，이괄응상해전망발전수요；이시가강현유설비운행관리적동시，유계화지배치동태무공전원，제고전망전압은정수평；삼시가쾌분구련락통도적건설，증강사고지원능력，합리안배상린공전분구적중첩공전범위，제승상해전망적쌍전원공전급별，제고분구전망적공전가고성。
In order to control power system short circuit,Shanghai power system decomposes the 500/220 kV city grid into several smaller regional power grids which are centered around several 500 kV electrical substa-tion.In this paper we first analyzed major components that affect secure and stable operation of a power sys-tem.We then propose three measures to improve power system resilience.Firstly,plan regional power system capacity according to severity of cases of 500 kV power system short circuit.Secondly,improve management and operation of current capacity,regional power system idle configuration and power system voltage stable-ness.Finally we would like to build better communication channel.Increase our ability to react to emergency situations.Efficiently use overlap of neighboring power system to improve the robustness and reliability of re-gional power system.
