Parallel-in-time relaxed Newton method for transient stability analysis

Author

Wang, F.Z.

Author_Institution

Dept. of Electron. Eng., Zhengzhou Univ., China

Volume

145

Issue

2

fYear

1998

fDate

3/1/1998 12:00:00 AM

Firstpage

155

Lastpage

159

Abstract

The paper presents a new parallel method for the transient stability analysis of power systems. For simplicity, the classical power system model is adopted. The implicit trapezoidal rule is used to discretise the set of differential equations which describes the transient stability problem. As is well known, these discretised nonlinear algebraic equations are almost invariably solved by a Newton procedure. A parallel-in-time relaxed Newton method is proposed to solve the overall set of discretised equations concurrently on all the time steps. The proposed method has been tested on Cray-T3D by the use of PVM system. The test results show that the proposed method presents a good compromise between parallelism-in-time and convergence. Some important aspects for parallel transient stability analysis have been clarified

Keywords

Newton method; differential equations; parallel algorithms; parallel machines; power system analysis computing; power system stability; power system transients; Cray-T3D; computer simulation; convergence; differential equations; discretised nonlinear algebraic equations; implicit trapezoidal rule; parallel calculation method; parallel-in-time relaxed Newton method; parallelism-in-time; power systems; transient stability analysis;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings-

Publisher

iet

ISSN

1350-2360

Type

jour

DOI

10.1049/ip-gtd:19981836

Filename

675527