DECENTRALIZED MULTIAGENT VOLTAGE CONTROL IN ELECTRICAL NETWORKS

Abstract

PURPOSE. Development of small distributed generation included in the network of low and average voltage sets the task of effective voltage regulation off-line the operating emergency control by means of the decentralized automated control. Multiagent control (MAC) is the means of solving this problem as every intelligent regulator included in the MA system can represent the interests (be an agent) of the subjects of the overall process of power supply (network company, small generation, a consumer) and the voltage mode is determined as a compromise of their interests. METHODS. The proposed method for solving this problem is based on the unified basic rules of decision-making and implementation of agents’ actions taking into account the controlled area mode and coordination of actions with neighboring agents. RESULTS AND THEIR DISCUSSION. The paper formulates the problem of multiagent compromise voltage regulation in active (in general) multiconnected electrical networks. Consideration is given to a one-level system of multiagent regulation with intelligent agents featuring both their own decision-making area (the area adjoining to the electrical network) as well as forming an expanded area of concerted actions. To control the adjacent area mode the agent uses only local mode parameters. The agents exchange data through the channels of direct electrical connections between the network nodes. The structure of a multi-agent voltage regulator is proposed and the need for an intelligent (expert) block in its composition is substantiated. CONCLUSIONS. The possibility of compromise voltage control in electrical networks with distributed means of reactive power compensation using a decentralized multiagent system coordinating agents’ actions in neighboring areas is proved.