计及短路电流约束的机组组合问题  

Short Circuit Constrained Unit Commitment

作　　者：覃岭[1] 林济铿[2] 戴赛[3] 江伟[4] 王海林[5] 郑卫洪[5] 

机构地区：[1]智能电网教育部重点实验室(天津大学),天津市南开区30072 [2]同济大学电子与信息工程学院,上海市杨浦区200092 [3]中国电力科学研究院,北京市海淀区100192 [4]国网福建省电力有限公司电力科学研究院,福建省福州市350007 [5]国网天津市电力公司,天津市河北区300010

出　　处：《中国电机工程学报》2016年第22期6049-6058,共10页Proceedings of the CSEE

摘　　要：针对近年来电力系统短路电流普遍超标的问题,提出计及短路电流约束的机组组合和支路投切(unit commitment and transmission switching,UC-TS)联合优化模型及其求解策略。由于同时利用机组组合和支路投切两种手段来实现对短路电流的控制。模型不但能够提供最优发电计划,还能提供满足短路电流约束的网络最优运行方式。由于模型的复杂度相对于未考虑短路电流约束的UC模型而言要大的多,对于规模较大的系统,直接求解难度较大,由此,提出模型化简及分解求解策略。最后通过算例证明了模型及求解方法的有效性。Aiming at the problem of short circuit violation in power system, a new co-optimization model of short circuit constrained Unit Commitment and Transmission Switching（UC-TS） problem and its solving method were both proposed. By controlling both UC and TS simultaneously, the solution of the model included both the optimal power generation schedule, and the optimal configuration of the power grid with short circuit constraints. It was difficult to solve directly for large scale system. Because the new model was much more complicated than the one without short circuit constraint. Effective simplifying strategies and decomposition solving method were further proposed. The results of examples demonstrated the effectiveness of the proposed model and algorithm.

关 键 词：短路电流 机组组合 支路投切 Benders分解方法 防孤岛 

分 类 号：TM73[电气工程—电力系统及自动化]