Title: Transient stability enhancement of a multi-machine electric power system using an adaptive-predictive wide-area damping controller

Authors: Adil Mohiudin; Mairaj-ud-din Mufti

Addresses: Electrical Engineering Department, National Institute of Technology, Srinagar, J&K, India ' Electrical Engineering Department, National Institute of Technology, Srinagar, J&K, India

Abstract: This paper describes the design, development and analysis of an adaptive predictive wide-area damping controller (WADC) which is employed to enhance transient stability of a two-area power system. Based on system identification and adaptive generalised predictive control, the proposed controller is used in such a way that its output signal is added to the excitation system of the already chosen generator. A state-variable-based adaptive generalised predictive control formulation has been employed in this work. In order to increase the effectiveness of the proposed controller, a modified-regulated variable has been used which utilises the outputs at the previous instants to generate the input of predictive controller. For identifying the system model, a recursive least-squares algorithm (RLSA) has been used. The results obtained from the simulation studies clearly show the effective damping of inter-area oscillations as well as the reduction in effect of time-delay in remote signals by the proposed controller.

Keywords: power system stabiliser; PSS; adaptive predictive WADC; system identification.

DOI: 10.1504/IJIED.2018.099610

International Journal of Industrial Electronics and Drives, 2018 Vol.4 No.4, pp.184 - 188

Received: 20 Jul 2018
Accepted: 12 Oct 2018
Published online: 14 May 2019 *

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