基于锂电池的电氢混合储能系统研究

Research on Electric-Hydrogen Hybrid Energy Storage System Based on Lithium Battery

为实现“碳达峰”和“碳中和”的中长期目标,以及推动新能源技术的发展,解决用电需求在时间上的不平衡性,同时减少电网调峰压力,混合储能技术成为了解决该问题的关键。将能量型储能器件和功率型储能器件混合搭配组成的混合储能系统,是兼具能量和功率优点的系统,使系统的功率性能和经济性大幅提升,不仅可以平滑可再生能源发电功率呈现的波动性和随机性,而且可以有效解决电力系统调峰能力不足的问题。因此,利用两种或多种储能技术配合应用可以有效提升可再生能源并网能力,并且能有效解决电网问题。介绍了不同储能系统的建模及其优点和仿真现状,提出了电网日益增长的负担解决方法和建议。

In order to achieve the medium and long-term goals of“carbon peaking”and“carbon neutrality”,as well as promote the development of new energy technologies,solve the imbalance of electricity demand,and reduce the pressure on the power grid peak load regulation.The hybrid energy storage technology has become a key to solving the problem.The hybrid energy storage system composed of the energy-type energy storage devices and the power-type energy storage devices is a system with both energy and power advantages,which greatly improves the power performance and economy of the system,which can not only smooth the fluctuation and randomness of the renewable energy generation,but also effectvely solve the problem of the insufficient power grid peak load regulation capacity.Therefore,the combined application of two or more energy storage technologies can effectively improve the grid-connected capability of the renewable energy and solve the above problems.The modeling,advantages and the simulation current state of different energy storage systems,and solutions and recommendations to address the growing burden on power grid are put forward.