Determination And Analysis Of TOU Power Price Based On DSM

Under power market circumstance, if reasonable power price to consumers is established, power consumers can be motivated to adjust their mode of power using and power load can be kept in a stable condition. Thus efficiency and stability of power systems can be improved. As one of power prices to consumers, TOU(Time-Of-Use) power price is applied in many countries in the world, and it is one of the important methods of DSM(Demand Service Management).It can accomplish the goal of load shifting and reducing costs of power consumers.In this paper determination of TOU power price is studied and three approaches are brought out: use MCP(Market Clearing Price) to determine flat load's power price, then determine the power price of peak and valley loads; determine power price of peak, flat and valley loads according to optimization of load shifting; determine power price of peak, flat and valley loads according to load shifting and reducing costs of power consumers. Furthermore, mathematical models are built based on these three approaches. Numerical simulations are made via MATLAB to verify the efficiency of TOU power price determined in this paper.Simulation results show that TOU power price determined in this paper can achieve the objective of load shifting and reducing costs of power consumers. Compared with existing work, TOU power price determined in this paper can get better effect of load shifting and reducing costs of power consumers.