对分布式潮流协调计算收敛机理的一种新分析  

A New Analysis of the Convergence Mechanism for Distributed Power Flow Coordination Calculation

作　　者：高明[1] 姚建国[1] 张文斌[1] 杨胜春[1] 袁玲[2] 

机构地区：[1]国电南瑞科技股份有限公司,江苏南京210061 [2]东南大学电气工程学院,江苏南京210096

出　　处：《江苏电机工程》2008年第4期58-62,共5页Jiangsu Electrical Engineering

基　　金：江苏省信息产业厅专项经费资助项目;广东电网公司科技项目

摘　　要：异步迭代模式下的分布式潮流分解协调计算外层迭代格式的构造取决于对分解协调计算收敛机理的分析和认识。将基于同心松弛概念的池塘理论加以扩展,用来分析边界等值注入误差在潮流计算中对各节点产生的影响。在此思路下提出了4个铺垫引论,据其对分解协调算法的收敛机理从同心松弛概念这一新角度做出了理论分析,并在此基础上提出了确定协调计算合并参数的新方法——直接选取法,再将其和原有方法进行了比较讨论,给出了已有的对收敛机理理论解释之间的联系。IEEE9、39、118节点系统上进行的数值仿真实验验证了本文的分析以及直接选取法的优点。The constitution of the exterior iterations depends on the analysis and comprehension of the convergence mechanism in the decomposition and coordination calculations of the distributed power flow based on asynchronous iteration. The pool theory based on concentric relaxation is extended in this paper to analyze the influence of the equivalent injection power errors on the nodes during the power flow calculation. 4 lemmas are proposed to theoretically analyze the convergence mechanics from the new viewpoint of the concentric relaxation conception. Finally a new method called direct selection method is proposed to get the coalition parameters of coordination calculation. The relationships of the theoretical explanations together with their algorithms which have been proposed are given, and the direct selection method is compared with original methods. The simulations in the IEEE 9-bus,IEEE 39-bus,IEEE l l8-bus systems testify the analysis given in this paper, which also show that direct selection method has its advantages.

关 键 词：分布式潮流计算 协调计算 收敛机理 合并参数 

分 类 号：TM711[电气工程—电力系统及自动化]