Parallel Optimal Reactive Power Flow Based on Cooperative Co-Evolutionary Differential Evolution and Power System Decomposition

Author

Liang, C.H. ; Chung, C.Y. ; Wong, K.P. ; Duan, X.Z.

Author_Institution

Coll. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan

Volume

22

Issue

1

fYear

2007

Firstpage

249

Lastpage

257

Abstract

Differential evolution (DE) is a promising evolutionary algorithm for solving optimal reactive power flow problems, but it requires relatively large population to avoid premature convergence. In order to overcome this disadvantage, a novel decomposition and coordination method based on the cooperative co-evolutionary architecture and the voltage-var sensitivity-based power system decomposition technique is proposed and incorporated with DE in this paper. It is implemented with a three-level parallel computing topology on a PC-cluster. Based on the IEEE 118-bus system test case, the effectiveness of the proposed method has been verified by comparison with the parallel basic DE not using the decomposition and coordination technique

Keywords

evolutionary computation; load flow; power systems; reactive power control; IEEE 118-bus system test case; cooperative coevolution; differential evolution; parallel computing; parallel optimal reactive power flow; power system decomposition; voltage-VAr sensitivity; Computer architecture; Convergence; Evolutionary computation; Optimization methods; Parallel processing; Power system modeling; Power systems; Reactive power; Topology; Voltage; Cooperative co-evolution; differential evolution (DE); optimal reactive power flow (ORPF); parallel computing; power system decomposition;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/TPWRS.2006.887889

Filename

4077121