特高压交流联络线潮流和电压波动特性分析  

Analysis on Power Flow and Voltage Fluctuation of Tie Line in UHVAC Power Grid

作　　者：贺静波[1] 伦涛[1] 陈刚[1] 许涛[1] 韩鹏飞[1] 冯长有[1] 

机构地区：[1]国家电力调度通信中心,北京市西城区100031

出　　处：《电网技术》2012年第9期56-60,共5页Power System Technology

摘　　要：特高压交流系统的电压特性是调度运行控制关注的重点,从理论上分析了特高压潮流和电压波动特性。基于特高压运行实测数据,定量分析了正常运行时母线电压与短路容量、潮流及有功波动之间关系。并进一步分析了电网发生大扰动下电压波动的影响因素,总结了特高压系统无功和电压控制策略,为特高压交流系统及其扩建工程系统的电压控制提供运行经验。Dispatching and control center of UHVAC system pays special attention to voltage fluctuation characteristics.The voltage fluctuation characteristics and power flow in UHVAC system were theoretically analyzed.Based on measured operational data of UHVAC system the relations between busbar voltage and short-circuit capacity,basic power flow and fluctuation of active power under normal operation conditions were quantitatively analyzed;during large disturbance in UHVAC system,voltage fluctuation is more complicated and influenced by both reactive power and active power,therefore the impacting factors of voltage fluctuation under large disturbances were further analyzed.Control strategy for reactive power and voltage of UHVAC system was given to guide the operational control of UHVAC system and its extension projects.

关 键 词：特高压交流 无功 电压波动 

分 类 号：TM91[电气工程—电力电子与电力传动]