Abstract:  ABSTRACT：  The establishment of energy internet demonstration park and the electricity sale companies has made the research on the demand side response mechanism more urgent based on the electricity sale companies as the main body. This paper presents a demand side response model based on peak-valley price. On one side, the customers behaviour was optimized and the grid company gained the benefit. On the other side, the grid company shared some of the benefits to the electricity sale company and then it returned the profits to customers by reducing the price. The system dynamics was used to demonstrate the feasibility and effectiveness of the model. The simulation system divides the demand response model into users response module, power grids benefit module and electricity sale companys benefit module. The simulation results have shown that the implementation of this demand response model can benefit all sides, and have proved the model is feasible. 

Key words:  KEYWORDS： demand side response, electricity supplier, peak and valley price, system dynamics, energy internet demonstration park