摘要
针对超级电容器在电力系统的应用,综合分析储能控制器的典型拓扑结构及其特点,采用双向DC/DC变换器作为超级电容器组的升压稳压环节,以解决超级电容器端电压随储能状态大范围变化的问题,提高其的容量利用率;并将两组双向DC/DC变换器串联,以控制逆变环节直流母线的分裂电容电压。同时,引入带重复控制的双闭环控制方法,以提高超级电容器储能控制器带不平衡和非线性负载的能力。实验结果表明,所采用的超级电容器储能控制器的拓扑结构及控制方法具有较好的控制效果。
Some typical topologies and the corresponding characteristics of energy storage control converters used in power system are comprehensively analyzed.According to the application of supercapacitor in power system,bi-direc-tional DC/DC converter as voltage Boost and stable regulator is used to stabilize the widely fluctuating voltage of su-percapacitor bank with its state of charge.As a result,the capacity utilization of supercapacitor is improved.Two bi-directional DC/DC converters are series connected to make the split capacitor voltage of the inverter DC bus control-lable.Moreover,a voltage and current double-loop control loop with repeated control method is also adopted to pro-mote the ability of imbalance and nonlinear load ability of supercapacitor energy storage system.The experimental re-sult verifies the presented topology and control method of supercapacitor energy storage system.
出处
《电力电子技术》
CSCD
北大核心
2011年第9期18-20,60,共4页
Power Electronics
基金
国家自然科学基金项目(50777064)
国家863计划项目(2009AA05Z210)~~
