Multi-agent system based real-time control for standalone microgrid

Abstract

The energy crisis and environmental concern lead to widely use of renewable energy sources in form of microgrid. The intermittent nature of the microgrid's sources and the altering behaviors of loads result to unstable of the system's voltage and frequency as well as the system reliability. The purpose of this paper is to develop real-time control based decentralizing technique for handling the challenging issues of the microgrid. Two levels distributed control is proposed. A modify droop control and frequency restoration is implemented as low-level control. The upper-level, a multiagent system is developed and it is the main control method in the research. The agents are implemented using Boris based on C#.NET language. The multiagent system consists of four main agents such as CONTROL agent, DER Agent, RENEW agent and LOAD agent. To evaluate the control performance, the microgrid testbed has been built. The results prove the effectiveness of real-time control to stabilize, monitor, improve system reliability and provide the microgrid intelligent operation.