Coordinated Control Strategy of Source-Storage-Load in Wind Power Heating System Considering Integrated Demand Response of Power and Thermal

Abstract

To solve the problem of wind curtailment caused by the limited flexibility capacity of thermal power units, an optimal dispatching strategy of combined wind power-regenerative electric heating (REH) system is proposed in this paper. Firstly, the integrated demand response (IDR) under price-based response scheme is analyzed to analyze the schedulable value of power and heat DR resources, including the power demand response (PDR) model and the thermal load demand response (TDR) model. On this basis, a joint optimal dispatch model of the REH system with IDR and the heat storage electrical boils is formulated, which takes minimizing the total thermal generation cost as the objective function. Case study on a wind power heating system in China is conducted. Case study results show that the proposed optimal operation strategy of the combined wind-thermal heating system considering IDR is more effective in promoting wind power utilization and reducing the total operation cost.