Distributed APPM for on-line voltage stability assessment of the large-scale power grid

Author

Jian-Hong Liu ; Xian-Chang Guo ; Chia-Chi Chu

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan

fYear

2014

fDate

27-31 July 2014

Firstpage

1

Lastpage

5

Abstract

This paper studies iterative distributed algorithms for on-line voltage stability assessment (VSA) in energy management systems of modern smart power grids. Since VSA can be modelled as a special non-linear optimal power flow (OPF) problem, iterative decomposition-coordination approaches based on constrained augmented Lagrangian methods can be applied. The distributed scheme of Auxiliary Problem Principle Method (APPM) is investigated. A computation framework of this distributed algorithm is studied. The system partition with non-overlapping and boundary sub-systems is also investigated. Simulations on IEEE-57 bus and IEEE-118 bus systems have been tested to validate the feasibility and correctness of the distributed VSA.

Keywords

energy management systems; iterative methods; load flow control; smart power grids; IEEE-118 bus systems; IEEE-57 bus systems; OPF problem; VSA; auxiliary problem principle method; boundary sub-systems; constrained augmented Lagrangian methods; distributed APPM; energy management systems; iterative decomposition-coordination; iterative distributed algorithms; large-scale power grid; modern smart power grids; nonlinear optimal power flow; on-line voltage stability assessment; Approximation methods; Distributed algorithms; Jacobian matrices; Numerical stability; Power system stability; Program processors; Stability analysis; Approximate Augmented Lagrangian; Auxiliary Problem Principle Method; Distributed Algorithm; System Partition; Voltage Stability Assessment;

fLanguage

English

Publisher

ieee

Conference_Titel

PES General Meeting | Conference & Exposition, 2014 IEEE

Conference_Location

National Harbor, MD

Type

conf

DOI

10.1109/PESGM.2014.6939239

Filename

6939239