A Fast Modularized Multiwinding Transformer Balancing Topology for Series-Connected Super Capacitors
A Fast Modularized Multiwinding Transformer Balancing Topology for Series-Connected Super Capacitors
复制标题
用于串联超级电容器的快速模块化多绕组变压器平衡拓扑
DOI：
10.1109/tpel.2018.2848364
复制
发表时间：
2019-04
影响因子：
6.7
通讯作者：
Kai Zhang
中科院分区：
文献类型：
--
作者：
Shaogui Fan;Ji;ong Duan;Li Sun;Kai Zhang
提出了一种适用于超级电容器串联的快速模块化多绕组Transformer平衡拓扑。利用所提出的MMTBT，模块内部和模块之间的电压平衡被完全解耦，并且模块化程度高。这与现有的MMTBT不同，在现有的MMTBT中，不同的模块共享相同的PWM驱动。而MMTBT可以采用不同的PWM驱动不同的模块，然后采用变频控制策略实现快速平衡。采用所提出的变频控制策略，平均平衡电流大，模块内部平衡速度快。利用所提出的MMTBT，通过对较高电压模块放电来实现模块之间的平衡。高电压模块的MMTBT将充当反激变换器，并且激励电流处于连续电流模式（CCM）以实现大的放电功率。首先，来自较高电压模块的额外能量被转移到半桥转换器的滤波电容器。然后，半桥变换器的输出串联连接以形成多电平变换器，以充当升压变换器的输入。最后通过升压变换器将能量传输回超级电容储能系统。电压较高的模块将以较大的放电功率放电，因此模块之间的平衡速度较快。模块内部和模块之间的平衡速度快，整个系统的平衡速度快。详细分析了变频控制策略和Boost变换器的控制策略，并通过实验验证了该平衡拓扑的快速平衡性能。
A fast modularized multiwinding transformer balancing topology (MMTBT) for series-connected supercapacitors is proposed in this paper. With the proposed MMTBT, the voltage balancing inside modules and between modules are completely decoupled and the degree of modularization is high. This is different from the existing MMTBT, with the existing MMTBT, different modules share the same PWM drive. While with the proposed MMTBT, different modules can be driven by different PWM, then the variable frequency control strategy can be used to realize a fast balancing speed. With the proposed variable frequency control strategy, the average balancing current will be large and the balancing speed inside modules will be fast. With the proposed MMTBT, the balancing between modules is realized by discharging the higher voltage modules. The MMTBT of the higher voltage modules will act as a fly-back converter and the excitation current is in continuous current mode (CCM) to realize a great discharging power. First, the extra energy from the higher voltage module is transferred to the filter capacitor of the half-bridge converter. Then, the outputs of the half-bridge converters are connected in series to form a multilevel converter to act as the input of a boost converter. At last, the energy is transferred back to the supercapacitor energy storage system by the boost converter. The higher voltage module will be discharged with a great discharging power, then the balancing speed between modules will be fast. The fast balancing speed is realized inside modules and between modules, then the balancing speed of the whole system will be fast. The variable frequency control strategy and the control strategy of boost converter are analyzed in detail and the fast balancing speed of the proposed balancing topology is proved by experimental results.
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DOI：
10.1109/ecce.2014.6953740
发表时间：
2014-11
期刊：
2014 IEEE Energy Conversion Congress and Exposition (ECCE)
影响因子：
--
作者：
Wei Jiang;Xiaogang Wu;Renjie Hu;Wu Chen
通讯作者：
Wei Jiang;Xiaogang Wu;Renjie Hu;Wu Chen
影响因子：
7.7
作者：
M. Preindl
通讯作者：
M. Preindl
影响因子：
6.7
作者：
Zhiliang Zhang;Handong Gui;Dong-Jie Gu;Yang Yang-Yang;X. Ren
通讯作者：
Zhiliang Zhang;Handong Gui;Dong-Jie Gu;Yang Yang-Yang;X. Ren
影响因子：
6.7
作者：
Y. Chen;Xiaofang Liu;Yangyi Cui;Jiming Zou;Shiyan Yang
通讯作者：
Y. Chen;Xiaofang Liu;Yangyi Cui;Jiming Zou;Shiyan Yang
影响因子：
12.3
作者：
F. Baronti;G. Fantechi;R. Roncella;R. Saletti
通讯作者：
F. Baronti;G. Fantechi;R. Roncella;R. Saletti