Title :
Frequency domain technique for designing stabilisers for a power plant with identical generators
Author :
de Araujo, C.S. ; de Castro, J.C.
Author_Institution :
Centre of Technol., Univ. Federal da Paraiba, Joao Pessoa, Brazil
fDate :
5/1/1995 12:00:00 AM
Abstract :
A new technique for designing power-system stabilisers for a power plant with identical generators is proposed. By exploring the special structure of the system and using modal techniques, two different transfer functions of the plant connected with the external power system are constructed by using reduced-order models. These transfer functions are used in a frequency domain procedure for determination of the time constants and gains of the stabilisers. For comparison, a conventional decentralised signal and a summation of similar signals from the generators are applied to the stabilisers to control the local modes. Based on the conventional frequency domain technique for designing a stabiliser for a single machine, the proposed technique explains statements from other papers, and produces new important results
Keywords :
decentralised control; frequency-domain analysis; power stations; power system control; power system stability; reduced order systems; transfer functions; decentralised signal; frequency domain technique; identical generators; modal techniques; power plant; power-system stabilisers; reduced-order models; stabiliser gains; time constants; transfer functions;
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings-
DOI :
10.1049/ip-gtd:19951709