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Damping power system oscillations by genetically optimised PSS and TCSC controller

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  • Sidhartha Panda
  • Ramnarayan Patel

Abstract

This paper presents a procedure for modelling and simultaneous tuning of parameters of Thyristor Controlled Series Compensator (TCSC) controller and Power System Stabiliser (PSS) in a power system to damp power system oscillations. First, a simple transfer function model of TCSC controller is developed and the parameters of TCSC and PSS are simultaneously optimised. Genetic Algorithm (GA) is employed for optimisation of the parameter-constrained non-linear optimisation problem. The results obtained from simulations are presented to validate the effectiveness of the proposed approach. The approach is effective for the tuning of multiple controllers in a power system so that they operate in a coordinated manner. Further, the simulation results show that the proposed TCSC controller is also effective in damping a range of small disturbance conditions in the power system. Further, the TCSC controller is found to be robust and ensures stability of the power system for different operating conditions.

Suggested Citation

  • Sidhartha Panda & Ramnarayan Patel, 2007. "Damping power system oscillations by genetically optimised PSS and TCSC controller," International Journal of Energy Technology and Policy, Inderscience Enterprises Ltd, vol. 5(4), pages 457-474.
    • Handle: RePEc:ids:ijetpo:v:5:y:2007:i:4:p:457-474
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