大规模水火电力系统最优潮流的现代内点理论分析  

AN ANALYSIS OF INTERIOR POINT THEORY FOR LARGE-SCALE HYDROTHERMAL OPTIMAL POWER FLOW PROBLEMS

作　　者：韦化[1] 李滨[1] 杭乃善[1] 刘东平[2] 文杰[2] 佐佐木博司[3] 

机构地区：[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

出　　处：《中国电机工程学报》2003年第4期5-8,共4页Proceedings of the CSEE

基　　金：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Karush 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,可以保证所得最优目标值的精度高于99％。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.

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 

分 类 号：TM744[电气工程—电力系统及自动化]