基于内点法的分布式电源选址定容  

Locating and Sizing of Distributed Generation Based on Interior Point Method

作　　者：张立臣[1,2] 徐步权[1] 金运策[1] 

机构地区：[1]河海大学能源与电气学院,江苏南京210098 [2]常州工学院电子信息与电气工程学院,江苏常州213002

出　　处：《电气自动化》2013年第6期63-65,共3页Electrical Automation

摘　　要：分布式电源可以改善系统的潮流分布、网络损耗、可靠性等,其效果与分布式电源的位置和容量密切相关。内点法具有收敛快、精度高等优点,在求解电力系统优化问题上可行有效。因此把传统的选址定容模型分成连续和离散,采用内点法进行连续求解。另外,提出一种基于Pareto最优理论引入协调参数w使两个子函数达到优化,进行选址定容。构造有功损耗和节点电压水平多目标函数,结果表明,基于多目标协调内点法是可行有效的,能协调优化多目标函数,同时计算时间短,收敛速度快。Distributed generation（ DG） can improve the power flow distribution,network loss and quality of the system,and its effect is closely related to the location and size of the distributed generation. Interior point method（ IPM）,characterized by fast convergence and high accuracy,is feasible and effective in solving power system optimization problem. Thus,the traditional locating and sizing model is divided into discrete one and continuous one,and continuous solution is conducted in the interior point method. Furthermore, coordination parameter W,based on the Pareto optimization theory,is introduced to optimize two sub-functions in the process of locating and sizing. A multi-objective function of active loss and voltage level is formed. The result indicates that the interior point method based on multi-objective coordination is feasible and effective,for it can coordinate the optimization of the multi-objective function and shorten computation time and quicken convergence.

关 键 词：分布式电源 内点法 PARETO最优 有功损耗 电压水平 协调 

分 类 号：TM74[电气工程—电力系统及自动化]