基于储能电容复用的超级电容阵列自均衡拓扑结构的分析

doi:10.19595/j.cnki.1000-6753.tces.L90099

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Abstract The conventional super-capacitor (SC) energy storage system and the equalizer are often designed separately, resulting in the need of a large number of equalization devices. In view of this, this paper proposes a novel voltage self-balancing topology, which reuses the first column of super-capacitors (SCs) as equalizing devices to realize the voltage self-equalization of the array. The entire equalizing system has only SCs and switches, which greatly reduces the number of components and the complexity of circuit. At the same time, during the equalization process, the equivalent capacitor is used to replace the parallel capacitor bank to obtain the characteristics of the SC's voltage, current and energy loss. With the characteristics of SC that can be charged and discharged with the large current, the array can be quickly balanced. The working modes of the topology are introduced in detail, and PSIM simulation results verify the feasibility of the proposed topology, and the multi-module comparative analysis proves that the proposed topology has good scalability. Finally, a 4 series 2 parallel SC array is designed to carry out the voltage self-equalization experiment, which proves its effectiveness and practicability.

Key words： Super-capacitor (SC) array the reutilization of SCs the voltage self-balancing multi- module comparison

Received: 23 June 2020

PACS:

TM912

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	Articles by authors
	Liu Junfeng
	Gao Pengju
	Liao Wubing
	Zeng Jun

Cite this article:

Liu Junfeng,Gao Pengju,Liao Wubing等. Analysis of Voltage Self-Balancing Topology of Super-Capacitor Array Based on Reutilization of Super-Capacitors[J]. Transactions of China Electrotechnical Society, 2021, 36(zk1): 372-380.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L90099 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/Izk1/372

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