Modelling and analysis of STATCOM based voltage regulator for self-excited induction generator with unbalanced loads

Author

Singh, Bhim ; Murthy, S.S. ; Gupta, Sushma

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., New Delhi, India

Volume

3

fYear

2003

fDate

15-17 Oct. 2003

Firstpage

1109

Abstract

This paper presents an analysis of the three-phase self-excited induction generator (SEIG) with static-compensator (STATCOM) as a voltage regulator. Current controlled voltage source inverter (CC-VSI) is used as STATCOM, which provides fast dynamic response to maintain constant voltage at SEIG terminals during severe load perturbations and acts as a source and sink of reactive power. The performance equations are derived using d-q variable in stationary reference frame to develop a mathematical model of SEIG-STATCOM system feeding unbalanced loads. Transient analysis of the SEIG-STATCOM system is carried out for voltage build-up; switching in STATCOM, application and removal of balanced/unbalanced resistive/reactive loads. The STATCOM compensates the unbalanced load and keeps the generating system balanced while maintaining constant AC terminal voltage.

Keywords

asynchronous generators; electric current control; invertors; reactive power; transient analysis; voltage regulators; STATCOM; balanced loads; current controlled voltage source inverter; load perturbations; reactive loads; reactive power; resistive loads; static-compensator; three-phase self-excited induction generator; transient analysis; unbalanced loads; voltage build-up; voltage regulator; AC generators; Automatic voltage control; Equations; Induction generators; Inverters; Mathematical model; Reactive power control; Regulators; Transient analysis; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2003. Conference on Convergent Technologies for the Asia-Pacific Region

Print_ISBN

0-7803-8162-9

Type

conf

DOI

10.1109/TENCON.2003.1273419

Filename

1273419