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大规模水火电力系统最优潮流的现代内点理论分析
引用本文:韦化,李滨,杭乃善,刘东平,文杰,佐佐木博司.大规模水火电力系统最优潮流的现代内点理论分析[J].中国电机工程学报,2003,23(4):5-8.
作者姓名:韦化  李滨  杭乃善  刘东平  文杰  佐佐木博司
作者单位:1. 广西大学电气工程学院,广西,南宁,530004
2. 广西电网调度中心,广西,南宁,530023
3. 日本国立广岛大学电气系,广岛 739
基金项目:国家自然科学基金项目(59867001),广西科技厅配套基金项目,广西十百千人才基金项目(桂人函[1998]354),广西教育厅基金项目(桂教科研[1998]169)
摘    要:基于原始问题的扰动的Kamsh KuHN Tucker条件,推导出一种求解水火电力系统最优潮流(HTOPF)问题的现代内点算法。沿着内点法的中心方向将该算法成功地扩展于求解次最优的HTOPF问题时(A—HTOPF)。与HTOPF相比,A—HTOPF不仅在求解大规模系统问题CPU时间下降1~2倍,而且在大多数情况下,可以保证所得最伏目标值的精度高于99%。

关 键 词:水火电力系统  最优潮流  现代内点理论分析  计算方法  电力系统
文章编号:0258-8013(2003)04-0005-04
修稿时间:2002年12月14

AN ANALYSIS OF INTERIOR POINT THEORY FOR LARGE-SCALE HYDROTHERMAL OPTIMAL POWER FLOW PROBLEMS
WEI Hua,LI Bin,HANG Nai-shan,LIU Dong-ping,WEN Jie,Hiroshi SASAKI.AN ANALYSIS OF INTERIOR POINT THEORY FOR LARGE-SCALE HYDROTHERMAL OPTIMAL POWER FLOW PROBLEMS[J].Proceedings of the CSEE,2003,23(4):5-8.
Authors:WEI Hua  LI Bin  HANG Nai-shan  LIU Dong-ping  WEN Jie  Hiroshi SASAKI
Abstract:An interior point nonlinear programming algorithm is presented for hydrothermal optimal power flow (HTOPF) problems. The algorithm is derived in a general formulation based on the perturbed Karush Kuhn Tucker (KKT) conditions of the primal problem. The algorithm is extended successfully to solve the approximate HTOPF (A-HTOPF) problems to find a suboptimal solution with less execution time by means of centering direction of the interior point method. In comparison with the HTOPF, the A-HTOPF can reduce CPU time by half and can guarantee more than 99% accuracy of optimal objective value in most cases for large-scale systems. The effectiveness of the proposed algorithm is verified by extensive numerical results.
Keywords:Hydrothermal power system  Optimal power flow  Cascade hydro-plant  Interior point method  Centering direction
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