摘要
在电池储能系统(BESS)单级PCS基础上引入双向DC/DC变换器(BDC),实现多路电池组的并联运行。根据大功率场合及储能电池充放电特点,对120 kW电池储能系统中的BDC进行了设计。阶段式充放电模式及双闭环控制策略为储能电池组提供了安全、灵活、可靠的充放电解决方案。仿真结果表明:所提出的控制策略具有较高的控制精度,系统具有理想的直流纹波系数。
The bi-directional DC/DC converter（BDC） was added to the battery energy storage system（BESS） power conversion subsystem（PCS） based on single-stage to achieve multi-parallel operation of the battery packs.According to the high power occasions and energy storage battery charge-discharge characteristic,BDC in 120 k WBESS was designed in this paper.The staged mode and dual-loop control strategy provided a secure,flexible andreliable solution for charging and discharging process.The simulation results show that the proposed solution has high precision and the system has ideal characteristics on control and DC ripple.
出处
《电源技术》
CAS
CSCD
北大核心
2011年第11期1423-1424,1432,共3页
Chinese Journal of Power Sources
