摘要
文章提出了一种光伏电力混合储能系统的能量管理控制策略,主要应用于含有光伏电源(Photovoltaic,PV)、电池能量存储(Battery Energy Storage, BES)和交流负载的发电网络系统中。该策略能够充分利用电力系统中组合架构之间的连接关系,有效缓解了目前电网中BES系统存在的过充电、欠充电等问题,并将充放电电流控制在一个相对稳定的范围内,延长了电池的使用寿命。分别在含有传统铅酸和锂离子电池的混合能量系统中使用6 kVA电源转换器进行实验,结果证明了所提出的能量管理策略的正确性和有效性。
This paper proposes an energy management control strategy for a photovoltaic power hybrid energy storage system,which is mainly used for off-grid applications that contain smart converters in photovoltaics(PV),battery energy storage(BES)and AC loads.This energy management strategy can make full use of the connection relationship between the combined architecture in the power system and effectively alleviate the overcharge and undercharge problems caused by battery energy storage.Meanwhile,it also can control the charge and discharge current within a relatively stable range,thus extending the service life of the battery.Finally,a series of experiments in a hybrid energy system containing traditional lead-acid and lithium-ion batteries are carried out through using a 6 kVA power converter.The results prove the correctness and effectiveness of the proposed energy management strategy.
作者
姚维平
鄂志君
张宁
杨帮宇
刘伟
刘晨
Yao Weiping;E Zhijun;Zhang Ning;Yang Bangyu;Liu Wei;Liu Chen(State Grid Tianjin Electric Power Co.,Tianjin 300072,China;Beijing King Star High-Tech System Control Co.,Ltd.,Beijing 102208,China;Donghua University,Shanghai 200051,China)
出处
《可再生能源》
CAS
CSCD
北大核心
2021年第2期264-269,共6页
Renewable Energy Resources
基金
国家重点研发计划智能电网技术与装备重点专项(2016YFB0901300)。
关键词
能量管理
光伏
电池储能
混合储能
power management
photovoltaic
battery energy storage
hybrid energy storage
