Research On Micro Grid Energy Management System Based On Multi-agent

In this day and age, power is more and more become indispensable to human energy. Along with society’s progress and development, power grid power supply brought the rapid development in recent decades, it has become today the most mature and widely used way of power supply. Since entering the new century, the power supply system has been gradually developed into a large and complex network. In today’s rapid economic development, the scale of power grid are also increasing,but its ills constantly emerge constantly emerge. The power system has a high maintenance cost and poor flexibility.In the face of user demands on power quality is getting higher and higher, the power grid power supply is more and more difficult to meet the requirements.In this context, the micro grid arises at the historic moment. It can solve the problem of controlling distributed power supply, be helpful for the use of renewable energy; it can improve the reliability and security of the power system, add new vigor to power technology development.In this paper, the micro grid energy management system is as the research object, using multi-agent technology in micro power grid. First we study the structure and working principle of micro power grid,establish the micro grid energy management system based on multi-agent architecture. Then we design a micro grid energy management system based on multi-agent, set up agent models and operating rules of loads and distributed power generation system, which contains photovoltaic power, wind power generation, micro gas turbine and battery.Using fuzzy control to realize the battery charge and discharge management agent, a multi-agent system’s dominant algorithm was adopted to realize the regulation of energy balance of the micro grid system.And then we design the communication system of multi-agent system, based on FIPA normative contract network communication protocol for communication between the agent system. Energy management system of the micro grid of multi-objective optimization being researched, the particle swarm method is used for solving the problem.Finally we use multi-agent platform JADE to build a micro grid energy management system, the system has strong expansibility and practicability.Through the simulation, the system can be a very good meet the micro grid energy balance in an island mode, and has certain economy at the same time.