Analysis and Mitigation of SubSynchronous Resonance in Power System with SVC and Using BFO Based Optimal Controller

Authors:

S.K. Gupta (Deenbandhu Chhotu Ram University of Science and Technology, Murthal)

Keywords: Static var system (SVS), Bacteria Foraging Optimization Algorithm (BFOA), Sub Synchronous Resonance (SSR).

Abstract:

In this paper, BFO based optimal controller has been applied for damping sub synchronous resonance and torsional modes in a series compensated power system network. The study has been carried out on IEEE first benchmark model. Static var system (SVS) has been considered to be connected at the midpoint of a long transmission line. Optimal controller uses all the system states as feedback to stabilize the outputs. Eigen value analysis using a linearized system model has been carried out on the test system for improving the system stability and damping of sub-synchronous oscillations. In this paper the effectiveness of the optimal controller and optimal plus BFOA is investigated and compared, for damping of the electromechanical torsional oscillations in a given series compensated power system. The effectiveness of the proposed damping scheme is demonstrated by using time-domain approach based on dynamic response.

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