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Adaptive coordinated passivation control for generator excitation and thyristor controlled series compensation system

Date

2009

Authors

Sun, Li-Ying
Zhao, Jun
Dimirovski, Georgi

Journal Title

Journal ISSN

Volume Title

Publisher

Pergamon-Elsevier Ltd

Abstract

The problem of transient stability for a single machine infinite bus system with the generator excitation and thyristor controlled series compensation (TCSC) is addressed via the coordinated passivation method. The system does not need to be linearized. Two types of uncertainties, namely, the damping coefficient uncertainty and the modeling error of TCSC, are considered. First, an excitation control input and a parameter updating law are obtained simultaneously via adaptive back-stepping and Lyapunov methods to achieve stability of the zero dynamics subsystem. Then, a reactance modulated input is derived to ensure the feedback passivity of the whole system, based on which a stabilizing controller for the closed-loop system is designed. Simulation results show that the proposed controller produces better transient performance than the conventional direct feedback linearization controller.

Description

Keywords

Keywords: Adaptive control; Coordinated passivation; Generator excitation; Power systems; Thyristor controlled series compensation; Controllers; Electric power transmission networks; Electric switchgear; Engineering exhibitions; Feedback; Feedback linearization; Ly Adaptive control; Coordinated passivation; Generator excitation; Power systems; Thyristor controlled series compensation

Citation

Source

Control Engineering Practice

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1016/j.conengprac.2008.12.004

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