Three-phase unbalanced distribution power flow solutions with minimum data preparation

Author

Lin, Whei-Min ; Su, Yuh-Sheng ; Chin, Hong-Chan ; Teng, Jen-Hao

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

Volume

14

Issue

3

fYear

1999

fDate

8/1/1999 12:00:00 AM

Firstpage

1178

Lastpage

1183

Abstract

An exact three-phase fast decoupled power flow solution is introduced in this paper. This method uses traditional Newton-Raphson algorithm in a rectangular coordinate system. The Jacobian matrix of the proposed method can be decoupled both on phases as well as on real and imaginary parts. In addition, the memory requirement of the traditional fast decoupled load flow can be reduced to only one-sixth. The need of the complicated mutual coupling terms can be avoided. It is even possible to solve the distribution system with line conductances only. That is, an exact three-phase distribution load-flow program can be executed with minimum data preparation to substantially offload the burden of distribution engineers. Tests have shown 10 to 100 times performance than other methods for test systems with 45 to 270 buses

Keywords

Jacobian matrices; Newton-Raphson method; data preparation; distribution networks; load flow; power system analysis computing; Jacobian matrix; Newton-Raphson algorithm; computer simulation; distribution system; fast decoupled load flow; memory requirement; minimum data preparation; rectangular coordinate system; three-phase unbalanced distribution power flow solutions; Admittance; Data engineering; Energy management; Gaussian processes; Jacobian matrices; Load flow; Mutual coupling; Power engineering and energy; Power system management; System testing;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.780956

Filename

780956