摘要
随着电网规模的不断增大,大电网短路电流超标已成为电力系统安全运行面临的重大问题。基于优化思想,推导了三相短路电流约束和单相短路电流约束形式,建立了包含短路电流限额约束的网架接线调整模型。针对短路电流约束的非凸非线性特征,提出了适用于大规模电力系统的基于Benders分解的求解方法。最后用提出的模型和算法计算了某大区电网2020年的网架调整方案,并进行了验证分析。
With the growing expansion of power system, excessive short-circuit current （SCC）in large power network has become a major problem in power system safety operation. The formulation of both single-phase and three-phase SCC limitation constraints are deduced based on optimal thought. An optimal transmission switching model considering SCC limitation constraints is proposed. Due to the nonconvexity and nonlinearity of SCC limitation constraints, the corresponding solution strategy is proposed based on Benders decomposition. The proposed model and solution method are applied in a regional power system of China in 2020 and the switching strategy is verified.
作者
田士君
王锡凡
王秀丽
齐世雄
窦效禹
TIAN Shijun;WANG Xifan;WANG Xiuli;QI Shixiong;DOU Xiaoyu(College of Electrical Engineering,Xi＇an Jiaotong University,Xi＇an,710049,China;Northwest China Grid Company Limited,State Grid Corporation of China,Xi＇an,710049,China)
出处
《智慧电力》
北大核心
2018年第9期6-12,52,共8页
Smart Power
基金
国家自然科学基金项目资助(U1766205)~~
关键词
短路电流限制
网架调整
混合整数非线性优化
Benders分解
short circuit current limitation
network reconfiguration
mixed integer nonlinear programming
Benders decomposition
