Secondary control of microgrids based on distributed cooperative control of multi-agent systems

• Published in: IET generation, transmission & distribution Vol. 7; no. 8; pp. 822 - 831
• Main Authors: Bidram, Ali, Davoudi, Ali, Lewis, Frank L, Qu, Zhihua
• Format: Journal Article
• Language: English
• Published: Stevenage The Institution of Engineering and Technology 01.08.2013; Institution of Engineering and Technology; The Institution of Engineering & Technology
• Subjects: Agents (artificial intelligence); Applied sciences; central controller; Communication networks; complex communication network; Control systems; Cooperative control; digraph; directed graph; directed graphs; distributed cooperative control; distributed generator; distributed power generation; Electric power grids; Electrical engineering. Electrical power engineering; Electrical machines; Electrical power engineering; Exact sciences and technology; Expert systems; frequency control; Graph theory; microgrids; Miscellaneous; multiagent systems; multi‐agent systems; one‐way communication links; power distribution control; power distribution reliability; Power networks and lines; Regulation and control; secondary control; secondary voltage; system reliability; telecommunication networks; Testing. Reliability. Quality control; Voltage; power distribution control; multi-agent systems; complex communication network; system reliability; frequency control; distributed power generation; secondary voltage; power distribution reliability; secondary control; one-way communication links; directed graphs; telecommunication networks; microgrids; digraph; distributed cooperative control; directed graph; distributed generator; multiagent systems; central controller; Performance evaluation; Control system; Distributed system; System reliability; Voltage control; Frequency control; Implementation; Multiagent system; Electrical network; Telecommunication network; Distributed control; System simulation; Effectiveness factor; Distribution network; Directed graph
• ISSN: 1751-8687; 1751-8695
• DOI: 10.1049/iet-gtd.2012.0576

This study proposes a secondary voltage and frequency control scheme based on the distributed cooperative control of multi-agent systems. The proposed secondary control is implemented through a communication network with one-way communication links. The required communication network is modelled by a directed graph (digraph). The proposed secondary control is fully distributed such that each distributed generator only requires its own information and the information of its neighbours on the communication digraph. Thus, the requirements for a central controller and complex communication network are obviated, and the system reliability is improved. The simulation results verify the effectiveness of the proposed secondary control for a microgrid test system.