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M.Tech / M.E / PhD Thesis | Electrical Engineering | India | Volume 7 Issue 3, March 2018
A Coordinated Control Scheme of PSS and SVC Devices for Improving Power System Oscillations
Swapnil Gupta | Kumar Prabhakar [7]
Abstract: The use of wide area measurements for power system stabilization is recently given a lot of attention by researchers and the power industry to avoid cascading failures and blackouts such as the 2012 black out in India. This paper presents the design of a damping controller based on wide area measurements as inputs to a SVC based controller. The usage of remote signals obtained from a Wide-Area Measurement System (WAMS) to a wide-area lead-lag (PSS) based SVC, which would degrade system damping and even cause instability. The parameters of lead-lag based SVC is optimized by Genetic Algorithm based on integral of time error of speed deviation for G-2 and G-4. Some simulation results are carried out to verify the effectiveness of proposed controller under small disturbance and large disturbance. From the simulation results, it reveals that the proposed controller damps out the inter-area oscillations effectively under different conditions.
Keywords: Inter-area oscillations, Power System Stabilizer, Static VAR Compensator, Integral of time error
Edition: Volume 7 Issue 3, March 2018,
Pages: 889 - 892
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