Constructure Thermoelectric Energy Storage Equipment Model And Research On Demand Response Strategy Of The Model

Air conditioning,water heater is called hot energy storage equipment,electric car is called electric energy storage equipment.With the rapid development of China’s economy and the rapid improvement of the living standard of the residents,the quantity of the air conditioning,water heater and electric car has been increased year by year.Thermoelectric energy storage devices are high-power electrical equipment.Large scale cluster has great impact on the power grid.It will cause the peak and valley difference of the power grid to increase,the spare capacity needed to increase,and the investment of transformer and other equipment will increase.But they are also a good demand response resource,and the appropriate scheduling strategy can be used to adjust their load to achieve the scheduling goals.This paper established the load time series model of thermodynamic load model and the electric vehicle thermal energy storage device,and in the scheduling mode of direct load control,starting from the wind and solar new energy consumptive,established the index system of equipment storage power scheduling strategy based on the realization of the rate,to improve the utilization of new energy smart micro in the net.The main work of this article is as follows:(1)Summarize the research background and research status quo,introduces the basic theories and methods: summarize the background and research status of thermoelectric energy storage equipment scheduling,introduces the basic knowledge of basic theory and demand side thermoelectric energy storage device modeling response,then introduced the simulation platform of Grid LAB-D.(2)Thermal energy storage device model is built to understand their load characteristics: the energy of thermal energy storage equipment is converted to electric heat conversion and heat transfer process,so the thermodynamic parameter model of air conditioner and water heater is built by equivalent thermal coefficient method.The behavior characteristics of electric vehicle are expressed by probability.The time series load model of electric vehicle is established by Monte Carlo method,and the load characteristics of thermal power storage equipment are analyzed.The IEEE-13 node distribution network is set up in Grid LAB-D,and the influence of the load and access of the large scale electric vehicle on the power grid transformer and so on is explored.(3)The direct load control strategy of thermal power storage equipment is established and simulated.The output of new energy in micro grid is stochastic fluctuation,and the power fluctuation of tie line is very large,which may transmit more power to the grid.Can the equipment load model using heat storage,set up to improve the evaluation index system of new energy efficiency index system and evaluation of equipment scheduling scheduling situation of smart microgrid,and with the help of simulation case to verify the index system,analysis of the influence of tie line power and the index for scheduling results.