Vol 22, No 1 (2018) > Electrical and Electronics Engineering >

Small-Signal-Stability Enhancement using a Power-System Stabilizer based on the Cuckoo-Search Algorithm against Contingency N-1 in the Sulselrabar 150-kV System

Muhammad Ruswandi Djalal 1 , Muhammad Yusuf Yunus 1 , Herlambang Setiadi 2 , Awan Uji Krismanto 3


  1. Department of Energy Conversion Engineering, State Polytechnic of Ujung Pandang, Makassar 90245, Indonesia
  2. School of Information Technology & Electrical Engineering, The University of Queensland, QLD 4072, Australia
  3. Department of Electrical Engineering, Malang Institute of Technology, Malang 65152, Indonesia


Abstract: Small signal stability is one of the main factors of limiting power transmission in a conventional power system. This stability concern is primarily handled by adding damper windings of synchronous generator and power system stabilizer (PSS). However, due to N-1 contingency impact, damper windings and conventional PSS are not enough to overcome this problem. Proper placement and design of PSS are crucial to improve its contribution to stability. One approach to optimize the placement and tuning of PSS is using artificial intelligent method. In this paper, Cuckoo search algorithm (CSA) is proposed to solve the optimization of PSS tuning and placement. From the simulation result, it is found that PSS based on CSA can enhance the small signal stability of the system. The critical, local and inter-area modes of the investigated system improve significantly. The oscillatory condition is more damp indicated by small overshoot and faster settling time. It is also found that CSA can be a method to tune PSS parameter under N-1 contingency.
Keywords: acetylide, conductivity, IDE, semiconductor, thiourea
Published at: Vol 22, No 1 (2018) pages: 1-8

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