Research On Scheduling Method Of Integrated Energy System Considering Hybrid Energy Storage

Integrated energy system can realize the coordination and complementation among various energy sources and improve the energy efficiency.The energy storage device in the integrated energy system can further improve the energy utilization rate,promote wind power consumption,and ensure the safe and reliable operation of the system.However,single energy storage has limitations.For this reason,this paper proposes different hybrid energy storage coordination strategies for different comprehensive energy systems to verify the wind abandonment absorption effect and economy of the coordination strategy.Then,the influence of the capacity of energy storage devices and the electricity storage efficiency on the wind abandonment absorption effect of the system is studied.Firstly,set up includes electricity,heat,gas integrated energy system structure of three kinds of energy storage,the second in power system and gas system of electrical coupling system,to set up mathematical way electrical model of the hybrid energy storage device,the storage operation strategy in coordination with gas storage,analysis the mechanism of electric hybrid energy storage device given to refuse the wind,and set up considering electric hybrid energy storage electric coupling system scheduling model.The simulation analysis of the gas storage,storage strategy coordinately to abandon the wind given effect and economy,and further analyses the electric energy storage device capacity and capacity of gas storage device to abandon the wind rate of the system,the example analysis shows that electric hybrid energy storage coordination strategy for wind power given and economic operation system,and at the same time as the energy storage device capacity increase,abandon the wind rate decreases,and the change of electrical energy storage device capacity to abandon the wind rate influence is greater.Secondly,the two seed systems for electricity and heat coupling form of CHP system,first of all,introduces the structure of the thermal system,secondly in mathematical way electric hybrid energy storage device model and study the storage operation strategy in coordination with thermal storage,analyzes the electric given abandon the wind mechanism of hybrid energy storage device,the last is established considering the electric hybrid energy storage CHP scheduling model.Simulation analysis of the heat storage-storage strategy coordinately to abandon the wind given effect and economy,and further analyzes the heat storage device to abandon the wind rate of the system capacity,the example analysis shows that electric hybrid energy storage coordination strategy for wind power given and the system ofeconomic operation,and the thermal storage device capacity increase,abandon the wind rate reduced.Finally,in view of the system coupling power hot gas three seeds of integrated energy system,studied the storage reservoir and gas storage coordination operation strategy,analyzes the electric heat given abandon the wind mechanism of hybrid energy storage device,and is established considering the electric hybrid energy storage heat integrated energy system scheduling model the simulation analysis of the storage reservoir and gas storage strategy coordinately to abandon the wind given effect and economy,and further analyzes the storage efficiency to abandon the wind rate of the system,the example analysis shows that the electric heat hybrid energy storage coordination strategy for wind power given and the system of economic operation,and the storage system efficiency increases,abandon the wind rate increased.