Capacity Optimal Design Of Wind/PV/Storage And Complementary Micro Grid Power Station Based On Zero Counter-current Logistics City In Tieling

With the continuous transformation of social and economic structure,the development of power system is also constantly innovating.Following the pace of social economy,the sustainable transformation has become more and more important.China’s photovoltaic power generation industry and wind power generation industry have also been in the leading position in the world.From the low-speed development mode of high cost and low production capacity,it has entered the high-speed development stage.With the development of the country With the introduction of PV and wind power development subsidies,new energy power generation has entered the stage of explosive growth.However,due to the defects of PV and wind power generation,in this context,the development of multi energy complementary power generation system has become an inevitable trend.Therefore,building a wind energy storage complementary power generation model can provide energy development and new energy system operation in the future The research on the economic benefits of bank and bank can provide a reliable basis.The new energy system is connected to the power grid in a large capacity and centralized way,as well as distributed power generation.However,new energy generation is subject to the impact of external environment.If the proportion of new energy capacity is too high,it will affect the stability and power quality of the power grid.Therefore,a variety of clean energy micro grid connected to the grid at the load side of the user is adopted.Because the micro grid has its own generating unit and also contains power consumption equipment,the micro grid can balance its own power,so as to reduce the impact of new energy on power.Because of the characteristics of short transmission distance,microgrid can reduce the power loss caused by distance,and the construction cost of transmission line can also be reduced.Therefore,using micro grid to build a new energy generation system can improve the utilization rate of new energy generation,which can not only cut the peak and fill the valley,but also improve the energy efficiency through the load characteristics of zero countercurrent.In this paper,by analyzing the research status of wind energy storage and multi-energy complementation,according to the power generation characteristics and existing problems of each energy,the author conceives the analysis methods and various power generation models.First,determine the optimization target of the system,determine the installation area of the photovoltaic battery array according to the actual load of Tieling Logistics City in the daytime,so as to determine the capacity of the photovoltaic power generation system,then determinethe wind power generation capacity according to the night load,and then determine the energy storage configuration capacity according to the principle of zero countercurrent,and optimize the investment scheme and capacity to achieve the best match according to the technical and economic evaluation of the wind and solar energy storage.The wind power generation capacity and energy storage capacity are determined by mathematical algorithm.After considering the cost control factors of wind power capacity and energy storage capacity,and the environment control factors of wind power capacity,a reasonable energy storage scheduling scheme is obtained according to the generation model with the help of mathematical algorithm and simulation results.After comparing the different system layout and control strategies,we find out the optimal scheme,and then build the simulation model of the wind energy storage multi energy complementary system,and verify the feasibility of the control strategy and scheme.Finally,according to the actual situation of the project,a project construction scheme is determined,and two calculation methods of investment recovery period are introduced.Based on the calculation of investment recovery period of system construction,the feasibility of the scheme is analyzed.