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高压电器  2015 

用于风储系统三重化DC-DC变流器的自适应模糊PI控制

DOI: 10.13296/j.1001-1609.hva.2015.07.003, PP. 15-19

Keywords: 风储系统,多重化,双向,DC-DC变流器,自适应,模糊控制

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Abstract:

风储联合系统可以有效地增加风电在电网中的渗透率,其中双向DC-DC变流器成为储能系统中的重要组成部分。文中针对一类多重化结构的双向DC-DC变流器拓扑,提出自适应模糊PI控制策略,以实现自动跟踪参考目标电压及功率双向流通的目的。首先,分析三重化双向DC-DC变流器的工作原理,得到其工作模型;然后,对使用于三重化双向DC-DC变流器的双闭环结构,提出自适应模糊PI控制结构并设计模糊控制器;最后,根据算例利用Simulink仿真验证,自适应模糊PI控制可以有效地控制电池充放电,更好地满足系统动态和稳态指标,适用于在电力储能系统中的应用。

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