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A Hybrid Multiagent Framework With Q-Learning for Power Grid Systems Restoration

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3 Author(s)
Dayong Ye ; Sch. of Comput. Sci. & Software Eng., Univ. of Wollongong, Wollongong, NSW, Australia ; Minjie Zhang ; Sutanto, D.

This paper presents a hybrid multiagent framework with a Q-learning algorithm to support rapid restoration of power grid systems following catastrophic disturbances involving loss of generators. This framework integrates the advantages of both centralized and decentralized architectures to achieve accurate decision making and quick responses when potential cascading failures are detected in power systems. By using this hybrid framework, which does not rely on a centralized controller, the single point of failure in power grid systems can be avoided. Further, the use of the Q-learning algorithm developed in conjunction with the restorative framework can help the agents to make accurate decisions to protect against cascading failures in a timely manner without requiring a global reward signal. Simulation results demonstrate the effectiveness of the proposed approach in comparison with the typical centralized and decentralized approaches based on several evaluation attributes.

Published in:

Power Systems, IEEE Transactions on  (Volume:26 ,  Issue: 4 )