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基于混合储能的光伏微网孤网运行的综合控制策略分析

Analysis of Comprehensive Control Strategy for Isolated Operation of Photovoltaic Microgrid based on Hybrid Energy Storage
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摘要 一般来说,孤网运行的光伏微网输出功率存在明显的随机性与间歇性特点,以确保系统供电更加稳定为目的,可以把能量密度较大的蓄电池、功率密度较高的超级电容器组成相应的混合储能系统,在光伏微网运行中得到了良好的运用。根据目前蓄电池电流多滞环控制方案,对其加以合理优化,使储能系统的运作状态达到最佳,可以延长蓄电池的使用年限。本文通过阐述系统组成的情况,分析了系统能量的管控策略,同时说明了动态仿真探究结果,从而有效提升基于混合储能的光伏微网孤网运行综合控制的总体水平。 Generally speaking,the output power of photovoltaic microgrid operating in isolated grid has obvious randomness and intermittent characteristics.For the purpose of ensuring more stable system power supply,batteries with higher energy density and supercapacitors with higher power density can be used.The corresponding hybrid energy storage system is formed,which has been well used in the operation of photovoltaic micro-grid.According to the current multi-hysteresis control scheme of the battery current,it is reasonably optimized to optimize the operation state of the energy storage system and extend the service life of the battery.This paper analyzes the system composition,analyzes the system energy management and control strategy,and explains the results of dynamic simulation exploration,thereby effectively improving the overall level of integrated control of photovoltaic microgrid isolated grid operation based on hybrid energy storage.
作者 陈涛 Chen Tao
出处 《电力系统装备》 2020年第20期7-8,共2页 Electric Power System Equipment
关键词 混合储能 光伏 微网孤网 运行管理 控制策略 hybrid energy storage photovoltaic isolated microgrid operation management control strategy
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