甘肃330 kV、220 kV电网电磁环网解环研究

甘肃省网目前存在电磁环网问题,不利于电网安全稳定经济运行,通过对白银电网环网解环的研究,提出了电磁环网解环的条件及电磁环网解环方案。运行结果表明,电磁环网解环运行后,简化了网络接线,优化了电网潮流,使各电网都不同程度的降低了网络损耗,各电网都满足线路“N-1”校验的要求,提高了电网稳定性;同时优化了电网无功潮流流向,各电网无功潮流更趋于合理,经过校验计算各电网无功配置都满足要求。

Research on Breaking up the Electromagnetic Loop Network in Gansu 330 kV/220 kV Electric Power System

The electromagnetic loop network in Gansu electric power system is bad for power grid operating safely, stably and economically. This paper put forward the requirements and schemes for breaking up the electromagnetic loop network by researching on the electromagnetic loop network in Baiyin electric power system. The operation results after breaking up the loop show that it is necessary to break up the electromagnetic loop network in Gansu to simplify the connection of power grid, optimize the current flow, reduce lines losses. Electric power system broken up the loop meets the requirements of "N-1" check, and stability of power system is improved, active power flow is optimized, and active power flow is more reasonable, and active power dispatching for power systems meet the requirements.