Authors: Mohsen Mohammadian, Houman Sadjadian
Addresses: Shahid Bahonar University, Kerman, Iran. ' Iran University of Science and Technology, Tehran, Iran
Abstract: This paper presents a new method for designing non-linear power system stabiliser to improve transient and dynamic stability. In these studies, a 4th order non-linear model of synchronous generator has been used. First, the existence of a diffeomorphism transformation for non-linear power system has been proved and then, the non-linear model has been transformed to a canonical form using input-output linearisation method. Finally, the linearised model is controlled using sliding mode technique. At these procedures, the stability of zero dynamics has been attained. The simulation results on a single machine connected to an infinite bus confirm the feasibility and show the good performance of the stabiliser.
Keywords: sliding mode control; SMC; feedback linearisation; power system stabilisers; zero dynamics; synchronous generators; nonlinear power systems; modelling.
International Journal of Power and Energy Conversion, 2010 Vol.2 No.2, pp.177 - 189
Published online: 21 Nov 2010 *Full-text access for editors Access for subscribers Purchase this article Comment on this article