摘要
针对我国特高压输电线路中普遍安装的固定高压并联电抗器显著制约线路传输功率的缺点,提出采用可控电抗器来代替的方案。根据晋东南-荆门1 000 kV输电线路建立了特高压线路模型,仿真研究了可控电抗器应用于该线路后对工频过电压、操作过电压以及潜供电流的抑制效果。仿真结果表明,可控电抗器能随着系统传输功率的变化来平滑调节无功容量,从而验证了可控电抗器应用于特高压输电线路的可行性和有效性。
Through analyzing the typical system＇s characteristic and Ultra-high Voltage （UHV） actransmission line＇s characteristic,the strategy by controlled shunt reactor is presented to improve transmission quality in electric networks in this paper. By using Matlab PSB, simulation model of UHV actransmission line from Jindongnan to Jingmen via Nanyang was built to study control effects on frequency over voltage, switching over voltage suppression, and so on. Simulation results indicate that controlled shunt reactor can smooth voltage and regulate reactive power,which show the feasibility and effectiveness of its application in UHV actransmission system.
出处
《电力学报》
2009年第4期266-269,共4页
Journal of Electric Power
关键词
特高压输电线路
可控电抗器
过电压
潜供电流
ultra high voltage transmission line
magnetically controlled reactor
over-voltage
secondary arc current
