AUTHOR=Yujing He , Jie Chen , Xueqin Tian , Yafei Wang 

TITLE=Integrated photovoltaic storage joint smoothing strategy based on simultaneous perturbation stochastic approximation algorithm

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 10 - 2022

YEAR=2023

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.1014027

DOI=10.3389/fenrg.2022.1014027

ISSN=2296-598X

ABSTRACT=In order to realize the real-time control of smooth grid connection of  Photovoltaic power generation and  energy management of hybrid energy storage systems under the condition that the energy storage equipment can operate safely,a control strategy combining simultaneous perturbation stochastic approximation(SPSA) and rule control is designed.Firstly, the photovoltaic data are processed and the data features of power slope are extracted, and then the grid-connected reference power is obtained by simultaneous perturbation stochastic approximation  algorithm.Secondly, considering the state of charge (SOC) of the energy storage device and the safe operating power range of the hydrogen storage device, 24 kinds of rules are formulated to distribute the mixed storage power through the method of rule control.Finally, according to the ten seconds sampling data of a typical day, the simulation is carried out on Matlab platform, and compared with the first-order low-pass filtering algorithm. The results show that the simultaneous perturbation stochastic approximation algorithm has a strong smoothing ability, and the rule control can also be assigned according to the characteristics of the hybrid storage equipment under the condition of ensuring its normal operation.