Optimal dispatch of wind photovoltaic thermal coupled system considering demand response
There is a common scenario in the northern region where wind power,photovoltaic,and thermal power units are integrated into a coupled system at the point of common coupling.In this scenario,considering the de-mand response of the load is conducive to reducing the pressure of thermal power deep peak shaving in the coupled system,so that the coupled system can better respond to the dispatching instructions of the superior power grid.Firstly,based on the traditional thermal power unit model,this paper considers the unit operation characteristics that the ramp rate changes with the load in different time scales,establishes the output model of the thermal power unit with deep peak shaving,and establishes the demand response model of load shedding and load shifting for the scenario where the coupling system as a whole participates in auxiliary peak shaving service.Secondly,considering the impact of demand response on the scheduling strategy and comprehensive operation benefits of the coupled sys-tem,a two-level optimal scheduling model of the coupled system is constructed.Finally,a local power grid is taken as an example for simulation analysis.The results of the example show that the characteristics and advantages of thermal power and new energy can be more fully utilized taking into account the demand response.
万方数据
维普
