江苏220kV电网及限制短路电流的探讨

A Discussion on Operation of Jiangsu's 220kV Distributed Power Grid and Scheme of Reduce Short Circuit Capability

随着电网的扩大,江苏220kV电网短路容量超标日益突出,严重影响系统的安全稳定运行。通过对江苏电网短路电流水平的分析,提出了分区运行等限制短路电流的措施,并对实现220kV电网分区运行的重点问题进行了探讨,为电网规划和运行提供了有益的建议。

With the continuous enlargement of network's scale and reinforcing of 500kV network's structure, the problem of the jiangsu's 220kv short-circuit capacity has become more and more serious, in which the safety and stability of operation are being affected much seriously. Several measures like distributed operation to control the level of short-circuit current are presented by calculating and analyzing of jiangsu power grid. Some suggestions on operation of 220kv distributed power grid are also given. These measures are of instructional significance in the planning and operation of the power grid.