Journal
IET GENERATION TRANSMISSION & DISTRIBUTION
Volume 9, Issue 16, Pages 2474-2484Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/iet-gtd.2015.0397
Keywords
decentralised control; distributed power generation; power grids; power system stability; multi-agent systems; power system security; switching systems (control); Petri nets; power generation control; decentralised coordinated control; microgrid stability; multiagent system; microgrid security; coordinated switching control; optimal switching operation mode; constraint violation function; colour Petri net; decentralised continuous control; loop droop controller; unit system stability; MAS
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Funding
- National Natural Science Foundation of China [51177142]
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In this study, a two-hierarchical decentralised coordinated control scheme based on the multi-agent system (MAS) is proposed to improve the security and the stability of the microgrid. The coordinated switching control strategies are constructed in upper level agent to ensure the microgrid security. The making process of the coordinated switching control strategies is regarded as searching the optimal switching operation mode by means of designing constraint violation function and colour Petri-net, so that the operation mode of the microgrid can be switched during larger power unbalance. The decentralised continuous control is designed by integrating the outer loop droop controller with the inner loop prescribed performance controller in the lower level unit agents to guarantee its unit system stability. Finally, the simulation results demonstrate the effectiveness of the decentralised coordination control based on MAS.
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