独立风力发电系统中VRB的控制设计  

A Control Method Design of VRB in Stand-alone Wind Power System

作　　者：任先文[1] 杨巍巍[1] 李鹏飞[1] 夏庆生[2] 牟晓春[3] 

机构地区：[1]东北电力大学,吉林吉林132012 [2]东北电力设计院,长春130021 [3]国电南瑞科技股份有限公司,南京210061

出　　处：《电测与仪表》2012年第6期61-65,共5页Electrical Measurement & Instrumentation

摘　　要：随着风力发电规模的不断增大,为提高独立风电系统运行的稳定性,本文在该系统中增加了新型环保钒氧化还原液流电池(VRB)储能系统,以有效减少功率波动给系统带来的不利影响。根据VRB等效数学模型,分析了VRB荷电状态(SOC)与端电压之间的变化特点,设计了VRB SOC的控制方法,并对具有VRB储能系统的独立风电系统进行建模和仿真。仿真结果表明,在含有VRB储能系统的独立风电系统中,通过控制VRB SOC可以使系统在风速及负荷瞬变的情况下保证对负荷的稳定供应。With the constant expansion of wind power, in order to improve the stability of stand-alone wind power system, this paper presented a new style of environmental vanadium redox flow battery （VRB） energy storage system, which is capable of decreasing power fluctuations. According to equivalent VRB mathematical model, this paper designed a control method of VRB based on the analysis of relationship between the state of charge （SOC） and voltage. According to results of simulations on stand-alone wind power system with VRB, under the circumstance of transient change of wind speed and load, the system can ensure a stable supply to load through the control of VRB.

关 键 词：VRB SOC 储能 独立风电系统 功率波动 

分 类 号：TM614[电气工程—电力系统及自动化]