一种基于补偿法的含小阻抗系统极坐标牛顿法潮流计算  

A power flow calculation of polar Newton method with small impedance system based on compensation method

作　　者：姚玉斌 王俊峰 YAO Yu-bin;WANG Jun-feng(Marine Electrical Engineering College,Dalian Maritime University,Dalian 116026,China)

机构地区：[1]大连海事大学船舶电气工程学院,辽宁大连116026

出　　处：《大连海事大学学报》2020年第4期118-124,共7页Journal of Dalian Maritime University

摘　　要：为使含小阻抗支路的电力系统潮流计算能够取得顺利收敛的结果,在分析小阻抗支路对极坐标牛顿法潮流计算影响的基础上,结合电力网络的特点,提出一种基于补偿法的求解含有小阻抗支路系统潮流的方法.该方法在潮流计算前对影响潮流计算收敛性的部分小阻抗支路进行串联补偿,把小阻抗支路等值成两个正常阻抗的支路,消除了小阻抗支路的影响,使得潮流计算可靠地收敛.理论分析与算例验证显示,该方法能够解决牛顿法在计算含有小阻抗支路系统时潮流计算收敛性问题.In order to make the power flow calculation with small impedance branches converge smoothly,on the basis of analyzing the influence of the small impedance branches on solar Newton power flow calculation,combining with the characteristics of power network,a method based on compensation method was proposed to solve the power flow of systems with small impedance branches.Before the power flow calculation,this method compensates the small impedance branches which affected the convergence of power flow calculation,and the small impedance branches were equivalent to two normal impedance branches,so that the influence of small impedance branches was eliminated,and the power flow calculation could converge reliably.Theoretical analysis and numerical examples show that the proposed method can solve the convergence problem of power flow calculation when Newton method is used to calculate the system with small impedance branches.

关 键 词：牛顿法潮流计算 收敛性 小阻抗支路 补偿法 

分 类 号：TM744[电气工程—电力系统及自动化]