500kV惠汕线茅湖变电站解口后线路高压并联电抗器退出运行的可行性研究  

Feasibility Study on Disengaging HV Shunt Reactors of 500kV Huishan Line Unlocked at Maohu Substation

作　　者：彭向阳[1] 陈禾[1] 梁文进[2] 林春耀[1] 郑彬[3] 

机构地区：[1]广东电网公司电力科学研究院,广东广州510600 [2]广东电网公司,广东广州510600 [3]中国电力科学研究院,北京100085

出　　处：《广东电力》2010年第1期10-15,共6页Guangdong Electric Power

摘　　要：广东电网500kV惠汕线经茅湖变电站解口后,原线路高压并联电抗器配置条件发生改变,加之电网结构和运行方式变化较快,造成高压并联电抗器故障率较高。为此,对惠汕线惠州、汕头侧高压并联电抗器退出运行展开电磁暂态研究,研究内容包括高压并联电抗器运行和退出工况下工频过电压、合闸及单相重合闸操作过电压、潜供电流和恢复电压以及甩负荷操作过电压等,研究结果表明惠州—茅湖—汕头通道原配置高压并联电抗器退出运行是可行的。After 500 kV Huishan line of Guangdong power grid unlocked at Maohu Substation, the failure rate of HV shunt reactors was high due to the change in the original configuration conditions of HV shunt reactors coupled with the rapid variation of power network structure and operation mode. Therefore, this paper carries out electromagnetic transient studies on decommissioning of HV shunt reactors at Shantou and Huizhou ends of the line, covering such aspects as power frequency overvoltage, closing and single-phase reclosing switching overvoltage, secondary-arc current and recovery voltage, and load rejection switching overvoltage under the operating and decommissioning conditions of HV shunt reactors. Studies have shown that the decommissioning of original HV shunt reactors of Huizhou-Maohu-Shantou channel is feasible.

关 键 词：输电线路 高压并联电抗器 电磁暂态 工频过电压 操作过电压 单相重合闸 

分 类 号：TM726.1[电气工程—电力系统及自动化]