A METHOD FOR FINDING A PAIR OF MULTIPLE LOAD FLOW SOLUTIONS IN BULK POWER-SYSTEMS

被引：49

作者：

IBA, K

SUZUKI, H

EGAWA, M

WATANABE, T

机构：

[1] MITSUBISHI ELECTR CO,DEPT ENERGY & INCL SYST,POWER SYST SECT,TOKYO,JAPAN

[2] TOKYO ELECT POWER CO LTD,TOKYO,JAPAN

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 1990年 / 5卷 / 02期

关键词：

Multiple Load Flow Solution. Voltage Security; Voltage Collapse; Voltage Instability; VQ Control;

D O I：

10.1109/59.54569

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a new method for finding a pair of multiple load flow solutions that are closely located to each other. Because load flow problems are expressed as sets of nonlinear simultaneous equations, they have no unique solution. A pair of solutions is related with voltage instabilities in power systems. The authors discovered that the convergent characteristic of load flow calculation by the Newton—Raphson method in rectangular coordinates has a unique linearity. It tends to converge straight toward a pair of multiple solutions when they are closely located to each other. Based on this feature, the authors propose a new method for solving a pair of near solutions in bulk power systems. The method can obtain them by one or two times of conventional load flow calculations. The results of applying this method to a heavily loaded practical 233-bus system and the Klos-Kerner 11-bus system verify its robustness and ability to find a pair of near solutions successfully and quickly. © 1990 IEEE

引用

页码：582 / 591

页数：10