电池储能系统新型双向功率变换器的研究  

Study of New Bi-Directional Power Conversion System in Battery Energy Storage System

作　　者：肖达正[1] 王磊[2] 赵文君[1] 唐龙[1] 

机构地区：[1]四川电力公司宜宾电业局,四川宜宾644000 [2]华南理工大学电力学院,广东广州510000

出　　处：《低压电器》2013年第19期40-42,共3页Low Voltage Apparatus

摘　　要：针对传统的电池储能系统中蓄电池组与双向功率变换器(PCS)直接连接,蓄电池组充放电电流较大,要求蓄电池组具有较大的容量。研究了一种新型PCS,即在蓄电池组与双向PCS之间串入双向DC/DC变换器,达到稳定蓄电池组充放电电流,减少蓄电池组串并联的目的。最后利用Matlab仿真软件搭建系统模型,仿真结果表明新型PCS具有良好的动态和稳态性能,能有效地稳定蓄电池组充放电电流,证明了该方法的有效性和可行性。In the traditional battery energy storage system, the battery is connected to bi-directional power conversion system（PCS） directly. So, when the battery charges or discharges, the current of the battery is very large. It needs 1age capacity of the battery. Because of the limited capacity, the battery needs to be series and parallel connection. This paper studied a new PCS, that is to series a bi-directional DC/DC converter between the battery and the traditional hi-directional PCS, then the current of the battery will be constant when the battery charges or discharges. And the amount of battery of series or parallel will be reduced. At last, the whole system was simulated with Matlab software. The simulation results show that the new PCS has a good dynamic and steady performance, the current of the battery is constant when the battery charges or discharges. The results also verify the effectiveness and feasibility of the new strategy.

关 键 词：储能系统 蓄电池组 功率变换器 双向流动 双向DC/DC变换器 

分 类 号：TM46[电气工程—电器]