电网短路电流限制措施优劣对比

Comparison of Short-Circuit Current Limitation Measures in Power Network

近年来,随着电力系统规模的不断扩大,区域短路电流问题变得越来越突出。短路电流问题的频繁出现将会给电网带来一系列危害。从电网设备、变电站结构、电网结构等多方面分析了限制短路电流的措施,并深入分析其优缺点,研究其在实际应用中的适应性和未来发展方向。最后,通过沈阳地区"十三五"期间限流方案有关计算结果论证研究的有效性及合理性。

The seale of the power system continues to expand at the same time, the regional power network short-circuit current prob- lem is more and more prominent. Short circuit cun＇ent will increase too fast to bring a series of hazards to the grid. In this paper, vari- ous measures to limit the short-circuit current are analyzed from the aspects of grid structure, substation structure and power grid equip- ment. The advantages and disadvantages of each method are analyzed, and their application in time and future development direction are studied. Finally, the validity and rationality of the calculation results of the current limiting scheme during the 13th five-years plan period in Shenyang area of Liaoning province are discussed.