摘要
文中提出一种基于交错并联技术的复合电池储能系统双向DC-DC变换器。与传统的双向DC-DC变换器相比,交错并联技术使得双向DC-DC变换器电池侧电流纹波在相同开关频率条件下进一步减小,且频率等效增加两倍,从而大大减小了同等纹波要求下的滤波电感感值和电容容值,提高了系统的功率密度。复合电池储能系统是一种由功率型锂电池和能量型铅酸电池以及一个共用的控制器组成的储能系统。该复合储能系统能够利用两种电池的不同输出特性,满足不同的功率输出需求,因此可以实现更高效的大功率输出需求,同时能有效解决过放电造成电池寿命减少的问题。
A novel interleaved parallel bidirectional DC/DC converter used in Hybrid Batteries energy storage system is proposed.Compared with the traditional DC-DC converter,By interleaving parallel technology,the battery side current ripple of the bidirectional DC-DC converter is reduced in the same switching frequency,and the frequency is increased by two times,thereby greatly reduces the filter inductance and capacitance value,and improves the power density of the system.The hybrid battery energy storage system is a kind of energy storage system,which is composed of a power type lithium battery,an energy type lead acid battery and a common controller.The composite storage energy system can use two kind of batteries of different output characteristics,to meet the different requirements of the output power,so you can achieve more efficient high power output,and can effectively solve the over discharge caused by the reduction of battery life.
出处
《通信电源技术》
2016年第2期15-18,共4页
Telecom Power Technology
关键词
双向DC-DC变换器
三级交错并联
复合电池
电流纹波
bidirectional DC/DC converter
three-level
interleaved parallel
compound battery units
current ripple
