计及网损的电网连锁故障预防方法

针对电网连锁跳闸引起的停电事故以及降低电力系统的有功功率损耗，提出了一种计及网损的电网连锁故障预防方法。 该方法提出了网损指标和衡量电网安全稳定运行指标，综合构建了多目标优化模型。 该模型的优化目的在于确保均衡权重下安全裕度尽可能大，同时使网损尽可能小。 通过粒子群优化算法求解，在IEEE-39 节点系统上进行了算例分析。 仿真结果表明该优化模型不仅提高了电网安全运行的界限，也实现了降损节能。

Prevention method of network interlocking failure considering network loss

A grid interlocking fault prevention method that considers the network loss was proposed to address the outage accidents caused by grid interlocking trips and reduce the power system’s active power loss. The method proposes a multi-objective optimization model that integrates the network loss index and the indicators for measuring the safe and stable operation of the grid. The optimization objective of the model is to ensure that the safety margin is as large as possible with balanced weights while making the network loss as small as possible. The model is solved by a particle swarm optimization algorithm and analyzed on the IEEE-39 node system. Simulation results show that the optimization model not only improves the bounds of safe operation of the grid but also achieves loss and energy reduction.