大容量全钒液流电池均衡控制策略及仿真

发布时间：2017-12-26 17:06

本文关键词：大容量全钒液流电池均衡控制策略及仿真　出处：《电力电子技术》2016年11期 　论文类型：期刊论文

【摘要】：随着新能源规模日益扩大,具有大容量、大功率、绿色环保特点,且适用于大容量储能系统的全钒液流电池(VRB)备受关注。对于大容量储能系统,单体电池的串并联使用非常普遍。由于电池不一致性,影响电池充放电特性和寿命。采用二级均衡控制策略实现多箱式全钒液流电池组(BL-VRB)协调均衡目标,并在Simulink仿真平台搭建多BL-VRB均衡系统,仿真验证两级均衡的可行性。同时验证两级均衡控制对双向直流变换器充放电控制影响较小。
[Abstract]:With the expansion of new energy sources, the vanadium redox flow battery (VRB) with large capacity, high-power, green environmental protection and suitable for large capacity energy storage system has attracted much attention. The series and parallel use of a single cell is very common for a large capacity storage system. Due to the inconsistency of the battery, the battery charge discharge characteristics and life span are affected. A two level equalization control strategy is adopted to achieve the coordinated and balanced target of the multi box vanadium redox battery (BL-VRB). A multi BL-VRB equalization system is built on the Simulink simulation platform, and the feasibility of the two level equalization is verified by simulation. At the same time, it is proved that the two stage equilibrium control has little influence on the charge and discharge control of the bidirectional DC converter.
【作者单位】：合肥工业大学电气与自动化工程学院;湖南德沃普有限公司;
【分类号】：TM912
【正文快照】： 1引言新能源具有随机性,波动性,导致其大批量接入电网后,对电网造成极大的挑战[11。储能可以帮助新能源友好接入电网并且提高新能源的利用率。储能在2008年之后,保持快速增长的趋势,构建长寿命大容量储能系统己是大势所趋I' 由于全钒液流电池的不一致性,导致在充放电过程中

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