Independent Charging Control Method for Dual-Channel Electric-Drive-Reutilized Onboard Charger

IF 6.6 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Power Electronics Pub Date : 2025-03-12 DOI:10.1109/TPEL.2025.3550669

Xunhui Cheng;Feng Yu;Linyuan Liu;Zhihao Zhu

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引用次数: 0

Abstract

The dual-channel electric drives feature a highly modular design, which significantly enhances fault tolerance and reliability of electric vehicles. The dual-channel electric-drive-reutilized onboard chargers (EDROCs) not only inherit several advantages from dual-channel electric drives, but also have benefits in terms of cost, weight, and power density. However, the charging powers of the two batteries are closely related to each other, posing a challenge for charging both batteries at the same time with the optimal charging powers. In this article, an independent charging control method is proposed for the dual-channel EDROC integrated asymmetric six-phase permanent magnet synchronous machine, which is applicable to both balanced and unbalanced battery voltage states. Under two fundamental charging requirements, namely grid current balance and zero average charging torque, the dual-channel winding current expressions which are solely associated with the ratio between the amplitudes of dual-channel winding currents are first derived. Then, the relationship between the ratio and dual-channel charging powers is deduced to realize the independent charging control of two channels. Thereafter, the independent charging control method of the studied dual-channel EDROC is designed. Ultimately, the experimental results based on a preliminary test setup validate the proposed independent charging control method.

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双通道电动驱动再利用车载充电器独立充电控制方法

双通道电驱动采用高度模块化设计，显著提高了电动汽车的容错性和可靠性。双通道电驱动再利用车载充电器（EDROCs）不仅继承了双通道电驱动的诸多优点，而且在成本、重量和功率密度方面都具有优势。然而，两种电池的充电功率密切相关，如何以最佳充电功率同时为两种电池充电是一个挑战。本文提出了一种适用于电池电压平衡和不平衡两种状态的双通道EDROC集成非对称六相永磁同步电机的独立充电控制方法。在电网电流平衡和平均充电转矩为零两种基本充电要求下，首先推导出仅与双通道绕组电流幅值之比相关的双通道绕组电流表达式。然后推导了该比值与双通道充电功率的关系，实现了双通道的独立充电控制。然后，设计了所研究的双通道EDROC的独立充电控制方法。最后，基于一个初步试验装置的实验结果验证了所提出的独立充电控制方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Power Electronics 工程技术-工程：电子与电气

CiteScore

15.20

自引率

20.90%

发文量

1099

审稿时长

3 months

期刊介绍： The IEEE Transactions on Power Electronics journal covers all issues of widespread or generic interest to engineers who work in the field of power electronics. The Journal editors will enforce standards and a review policy equivalent to the IEEE Transactions, and only papers of high technical quality will be accepted. Papers which treat new and novel device, circuit or system issues which are of generic interest to power electronics engineers are published. Papers which are not within the scope of this Journal will be forwarded to the appropriate IEEE Journal or Transactions editors. Examples of papers which would be more appropriately published in other Journals or Transactions include: 1) Papers describing semiconductor or electron device physics. These papers would be more appropriate for the IEEE Transactions on Electron Devices. 2) Papers describing applications in specific areas: e.g., industry, instrumentation, utility power systems, aerospace, industrial electronics, etc. These papers would be more appropriate for the Transactions of the Society which is concerned with these applications. 3) Papers describing magnetic materials and magnetic device physics. These papers would be more appropriate for the IEEE Transactions on Magnetics. 4) Papers on machine theory. These papers would be more appropriate for the IEEE Transactions on Power Systems. While original papers of significant technical content will comprise the major portion of the Journal, tutorial papers and papers of historical value are also reviewed for publication.