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Energies 2017, 10(9), 1305; doi:10.3390/en10091305

A Hybrid Approach for Power System Security Enhancement via Optimal Installation of Flexible AC Transmission System (FACTS) Devices

1
College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
2
Department of Electrical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam
3
College of Computer and Information Engineering, Hunan University of Commerce, Changsha 410205, China
*
Author to whom correspondence should be addressed.
Academic Editor: Ali Elkamel
Received: 18 July 2017 / Revised: 16 August 2017 / Accepted: 27 August 2017 / Published: 1 September 2017
(This article belongs to the Special Issue Energy Production Systems)
View Full-Text   |   Download PDF [3537 KB, uploaded 1 September 2017]   |  

Abstract

Increasing demand for electricity has placed heavy stress on power system security. Therefore, this paper focuses on the problem of how to maximize power system static security in terms of branch loading and voltage level under normal operation and even the most critical single line contingency conditions. This paper proposes a hybrid approach to find out the optimal locations and settings of two classical types of flexible AC transmission system (FACTS) devices, namely thyristor-controlled series compensators (TCSCs) and static var compensators (SVCs) for solving this problem. Our proposed approach requires a two-step strategy. Firstly, the min cut algorithm (MCA) and tangent vector technique (TVT) are applied to determine the proper candidate locations of TCSC and SVC respectively so as to reduce the search scope for a solution to the problem, and then the cuckoo search algorithm (CSA) is employed to solve this problem by simultaneously optimizing the locations and settings for TCSC and SVC installation. The proposed hybrid approach has been verified on the IEEE 6-bus and modified IEEE 14-bus test systems. The results indicate that CSA outperforms particle swarm optimization (PSO), proving its effectiveness and potential, and they also show that our proposed hybrid approach can find the best locations and settings for TCSC and SVC devices as an effective way for enhancing power system static security by removing or alleviating the overloads and voltage violations under normal operation and even the most critical single line contingency conditions. Using this hybrid approach, the search space for solution to the problem becomes limited hence the computational burden will be decreased. View Full-Text
Keywords: power system static security; FACTS; congestion; min cut algorithm; tangent vector technique; cuckoo search algorithm power system static security; FACTS; congestion; min cut algorithm; tangent vector technique; cuckoo search algorithm
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Kang, T.; Yao, J.; Duong, T.; Yang, S.; Zhu, X. A Hybrid Approach for Power System Security Enhancement via Optimal Installation of Flexible AC Transmission System (FACTS) Devices. Energies 2017, 10, 1305.

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