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Energies 2017, 10(1), 28;

Multi-Agent System Fault Protection with Topology Identification in Microgrids

Department of Electrical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Da’an District, Taipei 10607, Taiwan
Department of Electrical Engineering, St. John’s University, No. 499, Sec. 4, Tam King Rd., Tamsui District, New Taipei City 25135, Taiwan
Institute of Nuclear Energy Research, No. 1000, Wenhua Rd. Jiaan Village, Longtan District, Taoyuan 32546, Taiwan
Author to whom correspondence should be addressed.
Academic Editor: Paras Mandal
Received: 11 October 2016 / Revised: 15 December 2016 / Accepted: 20 December 2016 / Published: 27 December 2016
(This article belongs to the Special Issue Smart Microgrids: Developing the Intelligent Power Grid of Tomorrow)
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Data acquisition and supervisory control are usually performed using client-server architecture and centralized control in conventional power systems. However, the message transmission and fault clearing are too slow for large-scale complex power systems. Microgrid systems have various types of distributed energy resources (DERs) which are quite different in characteristics and capacities, thus, the client-server architecture and centralized control are inadequate to control and operate in microgrids. Based on MATLAB/Simulink (ver.R2012a) simulation software and Java Agent Development Framework (JADE) (JADE 4.1.1-revision 6532), this paper proposes a novel fault protection technology that used multi-agent system (MAS) to perform fault detection, fault isolation and service restoration in microgrids. A new topology identification method using the YBus Matrix Algorithm is presented to successfully recognize the network configurations. The identification technology can respond to microgrid variations. Furthermore, the interactive communications among intelligent electronic devices (IEDs), circuit breakers (CBs), and agents are clarified during fault occurrence. The simulation results show that the proposed MAS-based microgrids can promptly isolate faults and protect the system against faults in real time. View Full-Text
Keywords: multi-agent system; microgrid; distributed energy resources; topology identification bus; impedance matrix multi-agent system; microgrid; distributed energy resources; topology identification bus; impedance matrix

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Ananda, S.A.; Gu, J.-C.; Yang, M.-T.; Wang, J.-M.; Chen, J.-D.; Chang, Y.-R.; Lee, Y.-D.; Chan, C.-M.; Hsu, C.-H. Multi-Agent System Fault Protection with Topology Identification in Microgrids. Energies 2017, 10, 28.

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