Research On Energy Management Of Electrified Highway Photovoltaic Storage System

In recent years,with the increasingly prominent issue of global climate change,mitigating and addressing climate change has become a common task for countries around the world.As one of the world’s largest energy-consuming countries,China is actively promoting energy transformation to reduce its adverse impact on the environment and meet the growing energy demand.Especially under the background of the "dual carbon" goal,China’s development of new energy has entered a new stage,and the development of new energy in various fields has become an important concept for the new era of development.In this context,the research focus of this article is on the optimization of the voltage fluctuation suppression and hybrid energy storage capacity of the photovoltaic and energy storage system based on the construction of Xiong’an New Area and the electrified highway.The full content of the work is as follows:Firstly,an electrified highway photovoltaic and energy storage system model is established,including key factors such as the system’s topology,power supply mode,and power supply level.In the modeling process,a detailed characteristic analysis of components such as photovoltaics,batteries,and supercapacitors is carried out to better understand the system’s performance and characteristics.At the same time,it provides important reference for the design and control of the electrified highway photovoltaic and energy storage system.Based on this model,this study carried out the optimization configuration of the mixed energy storage system,providing technical support for the efficient operation of the electrified highway photovoltaic and energy storage system.Secondly,a load characteristic analysis was conducted under the background of the construction of Xiong’an New Area and the electrified road scenario.In order to further improve the performance of the electrified road energy storage system,a smoothing voltage fluctuation strategy based on the EEMD algorithm was proposed.This strategy uses the EEMD algorithm to allocate power to the smoothing power,fully utilizing the advantages of hybrid energy storage.Compared with the traditional lowpass filtering control strategy,simulation results show that the EEMD algorithm performs better in smoothing voltage fluctuations,with higher smoothness and better stability.This strategy can more accurately suppress voltage fluctuations in the power system,improve the stability and reliability of the power system,and provide important guarantee for the efficient operation of the electrified road energy storage system.Finally,a life-cycle cost objective function is constructed to study the optimal capacity allocation of hybrid energy storage system,and the QPSO algorithm is used to solve the objective function.Compared with the traditional PSO,the results show that the QPSO algorithm performs better in convergence speed,optimization accuracy and capacity optimization effect.Through this research,the capacity of hybrid energy storage system can be better configured,so as to realize the economic and stable operation of the system.