Research on Decision-making of Demand-side Energy Consumption Plan Based on Game Theory

A Based on the features of information sharing and energy interaction within smart grid, a decision-making model of energy consumption based on Nash equilibrium solution is developed to analysis the problem of competition and benefit conflict among different kinds of power users on demand-side. The payoff functions of three kinds of player are built, which are flexible, non-flexible and storable, relatively. The Nash equilibrium is solved to calculate the respective energy consumption and benefit in a non-cooperative game by Nikaido-Isoda function optimization. Taking a certain area in Western China as a case, simulation analysis of the game process of three kinds of users with the actual load is carried out. The results show that the game between power users can in-crease the system load rate, reduce the peak and valley difference of the system load, and reduce the cost of power production.