乌鲁木齐电网短路电流限制措施探讨

新疆电网近年来取得了快速发展,依托750 kV电网建设,新疆电网网架结构得到较大加强,网内电气等值距离进一步缩短,系统联系更加紧密,但同时也导致新疆电网短路电流水平的迅速增长,其中增长最快的是乌昌220 kV电网。目前,短路电流的迅速提高严重威胁着乌昌电网的安全稳定运行,本文结合目前国内外限制短路电流措施研究及应用情况,对乌昌电网可能采取的限制短路电流措施进行了探讨。

Study on the Short-circuit Current Limiting Measures in Urumqi 220 kV Power Grid

In recent years,relying on the construction of 750 kV power network,the structure of Xin-jiang power grid has been strengthened,in which the electrical equivalent distance is reduced farther so that the system is linked more closely.Meanwhile the level of short circuit current has been growing rapidly in Xin-jiang power grid,especially in Urumqi-Changji 220 kV power network.At present,the rapid growth of short-circuit current is a serious threat to the safety and stable operation of Urumqi-Changji grid.Based on the current-limiting researches and applications both at home and abroad,this paper takes some measures into consideration to limit the short circuit current of Urumqi-Changji grid.