Title: Improving the dynamic frequency regulation of a multisource power system considering GRC and dead band with TCSC and SMES

Authors: M. Deepak; Rajesh Joseph Abraham

Addresses: Department of Avionics, Indian Institute of Space Science and Technology, Thiruvananthapuram, Kerala, 695 547, India ' Department of Avionics, Indian Institute of Space Science and Technology, Thiruvananthapuram, Kerala, 695 547, India

Abstract: Coordinated operation of superconducting magnetic energy storage (SMES) and thyristor controlled series compensator (TCSC) for dynamic frequency regulation on a multisource power system is presented in this paper. The optimal integral gains of the control areas are obtained by tuning a quadratic performance index consisting of frequency deviations and tie-line power error using integral squared error technique. The effects of generation rate constraint and governor dead band nonlinearities are also considered. Time domain simulations carried out in MATLAB on a sample two area multi-unit power system comprising hydro, thermal and gas power plants reveal that the SMES-TCSC combination can effectively damp out deviations in area frequencies and tie-line power flow following a sudden load perturbation with better transient performance and reduced settling time.

Keywords: generation rate constraint; GRC; governor dead band; integral squared error; ISE; superconducting magnetic energy storage; SMES; thyristor controlled series compensator; TCSC.

DOI: 10.1504/IJPEC.2019.096722

International Journal of Power and Energy Conversion, 2019 Vol.10 No.1, pp.51 - 75

Received: 12 Mar 2016
Accepted: 14 Nov 2016
Published online: 10 Dec 2018 *

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