电力建设2024，Vol.45Issue(11)：14-24,11.DOI:10.12204/j.issn.1000-7229.2024.11.002
基于虚拟直流电机的多储能SOC均衡控制策略
Multi-Energy Storage SOC Equalization Strategy Based on Virtual DC Motor Control
摘要
Abstract
Droop control is commonly used in DC microgrids to maintain a reasonable distribution of power between DC microsources and ensure the stable and safe operation of DC microgrids.However,the traditional state-of-charge balance-control strategy based on droop control causes problems such as bus voltage drop and unreasonable system power distribution owing to its characteristics.Therefore,a multi-energy storage state-of-charge balance-control strategy based on virtual DC motor control is proposed.First,the virtual DC motor control is combined with adaptive droop control.A virtual DC motor control is used to provide additional inertia and damping support to the system,reduce the bus voltage drop,and improve the transient stability of the system.Second,the state-of-charge balance strategy based on improved adaptive droop control is used to achieve the state-of-charge balance between multiple sets of batteries and a reasonable distribution of system power.The control strategy was verified using a simulation model of a photovoltaic multi-energy storage DC microgrid and an experimental platform.The results demonstrate that the proposed control method can reduce the influence of power fluctuations on the DC bus voltage and balance the state of charge among multiple sets of batteries.关键词
直流微网/虚拟直流电机/下垂控制/荷电状态/惯性阻尼Key words
DC microgrid/virtual DC machine/droop control/state of charge/inertial damping分类
信息技术与安全科学引用本文复制引用
王君瑞,白冰超,王瑞,豆帅,谭露,朱旭强..基于虚拟直流电机的多储能SOC均衡控制策略[J].电力建设,2024,45(11):14-24,11.基金项目
This work is supported by National Natural Science Foundation of China(No.52167004).国家自然科学基金项目(52167004) （No.52167004）
宁夏回族自治区智能装备与精密检测技术研究应用创新团队(2022BSB03104) （2022BSB03104）
宁夏自然科学基金项目(2024AAC03182) （2024AAC03182）
