Abstract

As the fossil energy crisis and environmental pollution become more and more serious, clean renewable energy becomes the inevitable choice of energy structure adjustment. The power system planning and operation has been greatly influenced by the instability of the power output of distributed renewable energy systems such as solar energy and wind energy. The hybrid energy storage system composed of accumulator and supercapacitor can solve the above problems. Based on the analysis of the energy storage requirements for the stable operation of the DC microgrid, battery–supercapacitor cascade approach is adopted to form hybrid energy storage system, in a single hybrid energy storage subsystem for battery and supercapacitor and in the microgrid system of different hybrid energy storage subsystem, respectively, and puts forward the corresponding power allocation method to realize the smooth control of the battery current, to reduce the battery charge and discharge times, to prolong the service life of battery and to improve the running stability of the microgrid.

中文翻译：

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直流微电网与混合储能系统的协调控制策略，可平滑功率输出波动

摘要

随着化石能源危机和环境污染的日益严重，清洁可再生能源成为能源结构调整的必然选择。分布式可再生能源系统（例如太阳能和风能）的功率输出不稳定，极大地影响了电力系统的规划和运行。由蓄电池和超级电容器组成的混合储能系统可以解决上述问题。在对直流微电网稳定运行的储能需求进行分析的基础上，采用电池-超级电容器级联的方法，在电池和超级电容器的单个混合储能子系统中以及在不同的微电网系统中，形成了混合储能系统。混合储能子系统