Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30901
Title: Agent-based self-healing protection system
Authors: Su, S
Li, KK
Chan, WL 
Zeng, X
Duan, X
Keywords: Agent
Expert system
Protection system
Self-healing
Issue Date: 2006
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on power delivery, 2006, v. 21, no. 2, p. 610-618 How to cite?
Journal: IEEE transactions on power delivery 
Abstract: This paper proposes an agent-based paradigm for self-healing protection systems. Numerical relays implemented with intelligent electronic devices are designed as a relay agent to perform a protective relaying function in cooperation with other relay agents. A graph-theory-based expert system, which can be integrated with supervisory control and a data acquisition system, has been developed to divide the power grid into primary and backup protection zones online and all relay agents are assigned to specific zones according to system topological configuration. In order to facilitate a more robust, less vulnerable protection system, predictive and corrective self-healing strategies are implemented as guideline regulations of the relay agent, and the relay agents within the same protection zone communicate and cooperate to detect, locate, and trip fault precisely with primary and backup protection. Performance of the proposed protection system has been simulated with cascading fault, failures in communication and protection units, and compared with a coordinated directional overcurrent protection system.
URI: http://hdl.handle.net/10397/30901
ISSN: 0885-8977 (print)
1937-4208 (online)
DOI: 10.1109/TPWRD.2005.860243
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