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首页> 外文期刊>IEEE Transactions on Energy Conversion >Integrated Reconfigurable Configuration for Battery/Ultracapacitor Hybrid Energy Storage Systems
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Integrated Reconfigurable Configuration for Battery/Ultracapacitor Hybrid Energy Storage Systems

机译:电池/超级电容器混合储能系统的集成可重新配置配置

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摘要

In conventional parallel hybrid energy storage systems (HESSs), there are usually two cascaded converters active when transferring energy between its energy storage systems (ESSs) that result in the overall efficiency drop. Moreover, the dc-link capacitor has to be oversized to limit the voltage ripple during simultaneous energy exchange between the ESSs and load feeding. The integrated reconfigurable configuration for HESSs proposed in this paper allows direct energy transfer between the ESSs by using only a single converter and bypassing the dc link. This reduces the stress on the dc link, reduces the dc-link capacitor size, and improves the efficiency. The proposed configuration can be reconfigured to operate in different operating modes: “feeding a load” mode, “regenerative” mode, “energy exchange” mode, “energy exchange and feeding a load” mode, “balancing” mode, “charging” mode, and “backup” mode. To control the proposed HESS, a battery peak power limiting method is used to allocate the power components between the ESSs. The operating principle of the proposed configuration and its different modes are explained and experimentally verified.
机译:在传统的并联混合储能系统(HESS)中,当在其储能系统(ESS)之间传输能量时,通常有两个级联转换器处于活动状态,这会导致整体效率下降。此外,直流母线电容器必须加大尺寸,以在ESS和负载馈电之间同时进行能量交换时限制电压纹波。本文提出的针对HESS的集成可重配置配置允许仅使用单个转换器并绕过直流链路即可在ESS之间进行直接能量传输。这样可以减少直流链路上的压力,减小直流链路电容器的尺寸,并提高效率。可以将建议的配置重新配置为在不同的运行模式下运行:“馈电”模式,“蓄能”模式,“能量交换”模式,“能源交换和馈电”模式,“平衡”模式,“充电”模式和“备份”模式。为了控制提出的HESS,使用电池峰值功率限制方法在ESS之间分配功率分量。提出的配置及其不同模式的工作原理进行了解释和实验验证。

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