Optimal Parameters Tuning of Power System Stabilizer via Bees Algorithm

Abstract:

This paper presents a new approach for designing the Power System Stabilizer. As in power system network, low frequency oscillation always occurs for a long period of time that will decrease the power transfer capability. Power System Stabilizer known as PSS is being installed as one of the control devices in a generating unit. The conventional PSS (CPSS) is the most commonly used in power system, which uses lead-lag compensation. The lack in CPSS has drawn an interest of designing the new approach of PSS to outperform the conventional one. Thus, Bees Algorithm (BA) which is known as one of the numerous intelligent optimization methods is proposed in this paper. It is appears to aid the system stability by optimizing the PSS parameters tuning. The PSS with the BA approach is labelled as BA-PSS and being tested on single machine infinite bus system (SMIB) in Matlab/Simulink environment. BA-PSS performance is compared with CPSS as to validate the ability of the proposed method to achieve great performance in power system stability enhancement. Different type of mechanical input is being injected into the system and the result shows that BA-PSS is capable to optimize the parameters tuning of PSS. BA-PSS also improved the unstable or poorly stable modes as the system achieve the stability with lower overshoot and less time settling. The superior response of BA-PSS controller proved the ability of BA approach in which is capable to solve the lack in CPSS with better performance in enhancing the system stability.

• Periodical: Applied Mechanics and Materials (Volume 781)
• Pages: 397-401
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.781.397
• Online since: August 2015
• Authors: Nur Safura Ab Khalid*, Mohd Wazir Mustafa, Rasyidah Mohamed Idris
• Keywords: Bees Algorithm, MATLAB/SIMULINK, Power System Stabilizer, Single Machine Infinite Bus, Small Signal Stability

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