Investigation of Power System Stabiliser Parameters Optimisation Using Multi-Power Flow Conditions

Abstract

This paper presents an investigation into the optimisation of power system stabiliser (PSS) parameters using multi-power flow conditions. A simple objective function takes into account all the critical operating conditions. The steepest descent optimisation method based on eigen-value sensitivity is used for the minimisation of the objective function. Two types of PSSs are evaluated, namely, the optimised PSS (OPSS) based on multi-power flow conditions and the conventional PSS (CPSS). It is shown that the OPSS performs better than the CPSS on a single machine infinite bus (SMIB) system.

Key Words:

• Power system stabilizer
• multi-power flow conditions
• eigen-value sensitivity
• steepest descent
• method

Additional information

Notes on contributors

R. Tiako

Remy Tiako graduated with a Bachelor of Engineering with honours in Electrical and Electronic Engineering from the Federal University of Technology, Akure, Nigeria, in 1998. He received an MSc Degree in Electrical Engineering from the University of Cape Town in 2007. Presently, he is a PhD candidate at the University of Cape Town. He has worked for several years in academic and industries. His research interest is in power system stability.

K.A. Folly

KA Folly received his BSc and MSc Degrees in Electrical Engineering from Tsinghua University, Beijing, China, in 1989 and 1993, respectively. He received his PhD in Electrical Engineering from Hiroshima University, Japan, in 1997. From 1997 to 2000, he worked at the Central Research Institute of Electric Power Industry (CRIEPI), Tokyo, Japan. He is currently an Associate Professor in the Department of Electrical Engineering at UCT. His research interests are in power system stability, control and optimisation. He is member of the Institute of Electrical Engineers of Japan (IEEJ), the SAIEE and the IEEE.