Bijective Differential Search Algorithm for Robust Design of Damping Controller in Multimachine Power System

Abstract:

Low frequency oscillation (LFO) is a serious threat to the interconnection of power system and its safe operation. In this paper, optimum damping performances over LFO is achieved by implementing Bijective Differential Search Algorithm (B-DSA) to large interconnected power system. Conventional two stages lead-lag compensator is optimized as the Power System Stabilizer (PSS) and Linear Time Invariant (LTI) State Space system models are used to conduct stability analysis of power system. The tuning problem of PSS in multimachine system was formulated as a multi-objectives function. The simulations are conducted in 5-AREA 16 Machine test power system for severe system fault in order to verify the robust design of damping controller. The obtained results are compared with standard DSA optimization technique. The findings show the improved damping achieved by B-DSA than DSA algorithm. The settling times achieved using B-DSA based designed PSSs are 3.74sec and 4.57sec for local mode and inter-area mode of oscillations respectively. The successful damping over oscillation modes of LFO justifies the proposed technique is efficient for the improvement of power system security in adverse condition.

• Periodical: Applied Mechanics and Materials (Volume 785)
• Pages: 424-428
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.785.424
• Online since: August 2015
• Authors: Naz Niamul Islam*, M.A. Hannan, Hussein Shareef, Azah Mohamad
• Keywords: B-DAS, Interconnected Power System, Low Frequency Oscillation (LFO), Optimization, Optimum Damping, Power System Oscillation

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