当前位置: X-MOL 学术Energy Rep. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Analysis and implementation of multi-port bidirectional converter for hybrid energy systems
Energy Reports ( IF 5.2 ) Pub Date : 2022-01-07 , DOI: 10.1016/j.egyr.2021.12.068
Wei Yi 1 , Hengrui Ma 2 , Sicheng Peng 3 , Dichen Liu 3 , Ziad M. Ali 4, 5 , Udaya Dampage 6 , Ali Hajjiah 7
Affiliation  

In this work, a novel multi-port bidirectional converter is proposed for energy storage in electric vehicles (EV). The proposed converter has the ability to work in both bidirectional step-up (boost) and step-down (buck) modes. There are three ports in the proposed structure that the energy can flow between them. The main features of the proposed converter are the low components count, the low peak voltage of the main switches and low losses. Moreover, only two power switches are utilized in the proposed converter, which makes it easy to transfer the power between the sources. The suggested converter can be worked in energy storage system (ESS) due to the ability of step-up and step-down operation principles. Thus, it can charge and discharge the ESS with high voltage conversion ratio. Besides, the low number of components is utilized in the suggested converter to provide a bi-directional feature that leads to a reduction in the overall cost of the system. In order to investigate the effectiveness of the proposed converter, a technical survey, mathematical calculation, and a comparison study with other existing structures have been introduced in this paper. Finally, to validate the performance of the proposed converter, a laboratory prototype is implemented with a 150 W output power rate at 50 kHz switching frequency 20 V and 12 V input voltages, efficiency about 94.11% in step-up mode and 94.46% in step-down mode.

中文翻译:

混合能源系统多端口双向变换器分析与实现

在这项工作中,提出了一种用于电动汽车(EV)储能的新型多端口双向转换器。所提出的转换器能够在双向升压(升压)和降压(降压)模式下工作。所提出的结构中有三个端口,能量可以在它们之间流动。所提出的转换器的主要特点是元件数量少、主开关峰值电压低以及损耗低。此外,所提出的转换器中仅使用两个功率开关,这使得在电源之间传输功率变得容易。由于升压和降压工作原理的能力,所建议的转换器可以在储能系统(ESS)中工作。因此,它可以以高电压转换比对ESS进行充电和放电。此外,建议的转换器中使用的组件数量较少,以提供双向功能,从而降低系统的总体成本。为了研究所提出的转换器的有效性,本文介绍了技术调查、数学计算以及与其他现有结构的比较研究。最后,为了验证所提出的转换器的性能,我们实施了一个实验室原型,在 50 kHz 开关频率、20 V 和 12 V 输入电压下输出功率为 150 W,升压模式下的效率约为 94.11%,步进模式下的效率约为 94.46% -向下模式。
更新日期:2022-01-07
down
wechat
bug