基于TOPSIS法考虑电力安全事故风险的运行规划分负荷方案优化

Optimization of operating and planning load dispatching scheme considering the risk of electrical safety incidents based on TOPSIS method

为综合评价电网运行规划阶段分负荷方案的优劣,构造了一套涵盖电力系统经济性、安全性、可靠性和电力安全事故风险的电网运行规划分负荷方案评价指标体系。该指标体系首次将电力安全事故风险纳入评价考虑,涵盖范围广,能综合反映电网运行规划分负荷的实际需求。在获取各分负荷方案评价指标值的前提下,利用TOPSIS(Technique for Order Preference by Similarity to Ideal Solution)方法求解分负荷方案优化这一多目标决策问题,简单实用、可操作性强。实际系统仿真算例验证了该方法的有效性,可为电网运行方式制定提供技术支撑。

After analyzing the demand of de-lamination and sub-area power supply in power system, an index system to evaluate load dispatching in operating and planning of power grid is established by considering the power system economy, security, reliability and especially the risk of electrical safety incidents. The index first considers the risk of electrical safety incidents, and can reflect the real demand of load dispatching in operating and planning of power grid comprehensively. The indexes values of different load dispatching schemes can be obtained through calculation, and then the method of Technique for Order Preference by Similarity to Ideal Solution （TOPSIS） is used to solw. the multi-objective optimization problem. It is proved that this index system can meet the needs of load dispatching in actual power grid by simulation. And the index system and the optimization method can provide dicision suPPort for Dower system ooeratin~, and vlannin~.