电机与控制应用2017,Vol.44Issue(8):19-25,37,8.
基于直流微电网的混合储能协调控制策略仿真研究
Simulation Research on Coordinated Control Strategy of Hybrid Energy Storage Based on DC Microgrid
摘要
Abstract
Causing power imbalances within the system for the DC microgrid photovoltaic power generation unit of output volatility and intermittent,the coordinated control strategy of hybrid energy storage system based on DC bus voltage was proposed.The hybrid energy storage system could simultaneously take the advantages of high energy density and high power density.The strategy of the DC link voltage hierarchical control,using four threshold voltage was divided into five regions,with DC bus voltage as the information carrier,determined the operation state of the micro grid system,and realized the free switching between the charging and discharging modes of the hybrid energy storage unit.Hierarchical voltage control could effectively avoid the battery for the normal grid voltage fluctuations and frequent of charge discharge switch,further extending the service life of the battery.Finally,the simulation results of MATLAB/Simulink verified the feasibility of the proposed control strategy.关键词
微电网/光伏发电/混合储能/母线电压/协调控制Key words
microgrid/PV generation/hybrid energy storage/bus voltage/coordinated control分类
信息技术与安全科学引用本文复制引用
薛亚林,周建萍,崔屹..基于直流微电网的混合储能协调控制策略仿真研究[J].电机与控制应用,2017,44(8):19-25,37,8.基金项目
国家自然科学基金项目(61275038) (61275038)
上海市重点科技攻关计划(14110500700) (14110500700)
上海市科学技术委员会工程技术研究中心项目资助(14DZ2251100) (14DZ2251100)