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Optimal Coordination For Multi-Agent Based Secondary Voltage Control In Power System

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3 Author(s)
Sheng Gehao ; Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China. (E-mail: ; Jiang Xiuceng ; Zeng Yi

The secondary voltage control scheme based on multi-agent theory is presented in the paper. In this scheme, the individual primary voltage controllers and the secondary controller are represented as a set of execution agents and a coordination agent, respectively, who work either independently or coordinately to control the system-wide voltage level. According to the principles of the multi-agent system (MAS), the optimal coordination methods among voltage controllers in normal operating condition and in system contingencies are investigated respectively. Under normal conditions, the multi-agent based control system works as a conventional secondary voltage control system, realizing global optimal var/voltage control. When system runs into contingencies, contract net protocol, which is widely used in MAS, are introduced to realize coordination and cooperation among voltage control agents for eliminating voltage violation. The simulation results of the New England 39-bus system show that the proposed control scheme and coordination method are very effective in managing global voltage profile of power system as well as settling local voltage violation problems in system contingencies

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2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific

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