可再生能源2018，Vol.36Issue(3)：340-345,6.
独立光伏供电系统中多储能单元协调控制策略的研究
Research on coordinated control strategy of multi energy storage unit in stand-alone photovoltaic system
摘要
Abstract
A hybrid energy storage system consisting of a super capacitor and several battery energy storage units is proposed, and it is applied to the stand-alone photovoltaic (PV) system. Using several battery energy storage units can increase the capacity of the energy storage system and improve power supply reliability. According to the state of charge (SOC) of each battery energy storage unit is different, an improved SOC droop control method is used to achieve the optimal of power and realize the dynamic balance of SOC between different energy storage units, optimize the energy transfer process greatly.Meanwhile,the super capacitor added in the system can compensate the high frequency part of the power storage, reduce the number of battery charge and discharge, maintain the stability of DC bus voltage. Through simulation, the article verifies that the proposed control strategy can optimize the running state of energy storage units,and effectively maintains the balance of the transmission power of the photovoltaic system and the stability of the DC bus voltage.关键词
独立光伏供电系统/混合储能系统/超级电容器/蓄电池/下垂控制/荷电状态Key words
stand-alone PV system/hybrid energy storage system/super capacitor/battery/droop control/state of charge(SOC)分类
能源科技引用本文复制引用
聂齐齐,张建成,王宁..独立光伏供电系统中多储能单元协调控制策略的研究[J].可再生能源,2018,36(3):340-345,6.基金项目
国家自然科学基金项目(51177047) （51177047）
河北省科技计划项目(16214504D) （16214504D）
中央高校基本科研业务费专项资金资助项目(2016MS89). （2016MS89）
