Title: Alleviation of transient torsional torque stresses of turbine generator shaft segments using CBVLC supplementary controller

Authors: Narendra Kumar; Sanjiv Kumar

Addresses: Department of Electrical Engineering, Delhi Technological University, Bawana Road, Delhi-110042, India ' Department of Electrical Engineering, Delhi Technological University, Bawana Road, Delhi-110042, India

Abstract: In this paper a bus voltage and line current (BVLC) supplementary subsynchronous damping controller (SSDC) is proposed to alleviate subsynchronous resonance (SSR) and damping power system oscillations in a power system. Both eigenvalue investigation and time-domain simulation results verify that the proposed method can damp torsional oscillations of the power system with SVS bus voltage and line current (BVLC) supplementary controller. The results demonstrate that the proposed controller has a successful performance in minimising the SSR. It is shown that the controller is able to stabilise all unstable modes. The study is performed on the system adapted from the IEEE first benchmark model. All the simulations are carried out in MATLAB/Simulink environment.

Keywords: flexible AC transmission systems; FACTS; static VAR; bus voltage; line current; series compensation; subsynchronous resonance; SSR; supplementary controllers; eigenvalue investigation; energy conversion; transient torsional torque; torque stresses; turbine generator shafts; oscillation damping; power systems; simulation.

DOI: 10.1504/IJPEC.2016.075064

International Journal of Power and Energy Conversion, 2016 Vol.7 No.1, pp.42 - 56

Received: 11 Jul 2014
Accepted: 24 Dec 2014
Published online: 02 Mar 2016 *

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