A non-cooperative game theory based energy trading strategy of multi-microgrids

This paper proposes an energy trading strategy based on non-cooperative game theory for multi-microgrids (MGs). According to whether the renewable energy generation can meet the load demand, the MGs are divided into consumers and providers. In order to reduce the operation cost, consumers compete to buy the energy provided by suppliers and changing the price of electricity purchase. The suppliers provide energy according to the priority factor. The energy provided by the provider is distributed to the consumer in proportion to the price offered by the consumer, and the income is allocated to the provider in proportion to the sales volume. On this basis, a non-cooperative game model composed of consumers is built, and the game model has Nash equilibrium is proved. Meanwhile, the Nash equilibrium solution through particle swarm optimization (PSO) algorithm is obtained. Finally, the feasibility and effectiveness of the energy trading strategy are verified by simulations.