Optimal TCSC Allocation via Chaotic Immune Symbiotic Organisms Search for Voltage Profile Improvement

Mohamad Khairuzzaman Mohamad Zamani, Ismail Musirin, Saiful Izwan Suliman, Sharifah Azma Syed Mustaffa, Nur Zahirah Mohd Ali, Mohd Helmi Mansor, Zulkiffli Abdul Hamid

Research output: Contribution to journalConference article


As the load demand in a power system increases, power system operators struggle to maintain the power system to be operated within its acceptable limits. If no mitigation actions are taken, a power system may suffer from voltage collapse, which in turn leads to blackout. Flexible AC Transmission System (FACTS) devices can be employed to help improve the voltage profile of the power system. This paper presents the implementation of Chaotic Immune Symbiotic Organism Search (CISOS) optimization technique to solve optimal Thyristor Controlled Series Compensator (TCSC) in a power system for voltage profile improvement. Validation process are conducted on IEEE 26-bus RTS resulting in the capability of CISOS in solving the allocation problem with a better voltage profile. Comparative studies conducted with respect to Particle Swarm Optimization (PSO) and Evolutionary Programming (EP) has revealed the superiority of CISOS over PSO and EP in solving the optimal allocation problem by producing optimal solution with a better voltage profile. The results and information obtained from this study can help power system operator in terms of optimal compensation in power system as well as improving the operation of a power system.

Original languageEnglish
Article number03002
JournalE3S Web of Conferences
Publication statusPublished - 14 Feb 2020
Event2019 International Conference on Power, Energy and Electrical Engineering, PEEE 2019 - London, United Kingdom
Duration: 20 Dec 201922 Dec 2019

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)
  • Energy(all)
  • Earth and Planetary Sciences(all)

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