微网孤岛运行下储能控制策略的分析与仿真  

Analysis and Simulation of Energy Storage System under Micro-island Operation

作　　者：杨海晶[1] 李朝晖[1] 石光[1] 刘中胜[2] 宋春晖[2] 

机构地区：[1]河南省电力公司电力科学研究院,郑州450052 [2]天津天大求实电力新技术股份有限公司,天津300384

出　　处：《电力系统及其自动化学报》2013年第3期67-71,共5页Proceedings of the CSU-EPSA

基　　金：国家电网科技项目"微电网应用模式与协调控制技术研究开发及应用"(EPRIPDKJ[2012]3120)

摘　　要：为维持微网孤岛系统的稳定运行并防止系统频繁的充放电对传统蓄电池储能产生较大的负面影响,文中介绍了一种由超级电容和蓄电池组成的混合储能系统能量管理方法。在负荷变化时,由超级电容迅速响应功率需求,同时控制直流侧母线电压;在直流侧母线电压稳定后,超级电容不再输出功率,由蓄电池补偿系统净负荷的功率缺额。该方法有效防止了微网孤岛系统的净负荷需求突然变化对蓄电池造成的冲击,优化了蓄电池的工作过程,延长了蓄电池的使用寿命。最后利用PSCAD仿真验证了本文所提方法的有效性。In order to maintain the stable operation of micro-island system and avoid the greater negative impact of frequent charge and discharge on the performance of traditional battery energy storage system （BESS）, this paper introduces a new energy management method of hybrid battery super-capacitor storage system. When the load changes, the super-capacitor responses to the power demand quickly and controls the bus voltage of DC side at the same time. When the DC-side bus voltage is stable, the super-capacitor no longer outputs power and the payload power shortfall is compensated by the battery. This method prevents the battery from being destroyed by the sudden changes of the net-load demand power, optimizes the working process of the battery, and extends the battery lifetime. Finally, a PSCAD model is used to verify the validity of this method.

关 键 词：混合储能 蓄电池 超级电容 双极式变流 能量管理 

分 类 号：TM743[电气工程—电力系统及自动化]