含超级电容的光伏制氢系统建模与研究

Modeling and Research on Photovoltaic Hydrogen Production System With Supercapacitor

光伏制氢是获得绿氢以应对能源危机的重要方式,但由于光伏系统的供电昼夜性问题,采用光伏与超级电容混合发电保证制氢系统的稳定工作,系统由光伏电池板、水电解槽、超级电容及功率变换装置等组成。提出了实现最大功率点追踪的光伏系统控制策略及超级电容恒压控制策略,在保证功率平稳流动的前提下最大程度利用光伏制备氢气,并在Matlab/Simulink仿真软件中建立含超级电容的光伏制氢系统,通过仿真对该系统所提控制策略进行验证。

Photovoltaic hydrogen production is an important way to obtain green hydrogen to deal with the energy crisis.However,due to the problem of day and night power supply of the photovoltaic system,it uses photovoltaic and super capacitor hybrid power generation to ensure the stablework of the hydrogen production system.The system is composed of photovoltaic panel,hydropower tank,super capacitor and power conversion device.The photovoltaic system control strategy to achieve maximum power point tracking and the super capacitor constant voltage control strategy are proposed to maximize the use of photovoltaic to prepare hydrogen on the prerequisite of guaranteeing the smooth flow of power.The photovoltaic hydrogen production system with super capacitor is built in Matlab/Simulink simulation software,and the system and the proposed control policy are proved by emulation.