为电动汽车应用设计和控制具有电池平衡功能的模块化集成车载电池充电器

IF 4.6 4区 化学 Q2 ELECTROCHEMISTRY
Fatemeh Nasr Esfahani, Ahmed Darwish, Xiandong Ma
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引用次数: 0

摘要

本文介绍了基于 SEPIC 转换器(MSOBC)的新型模块化车载充电器(OBC)的运行和控制系统,该系统适用于电动汽车(EV)。MSOBC 的目的是将电动汽车储能系统中的电池单元模块化,以提供更好的安全性和操作性。这主要是通过在不牺牲高压系统所需性能的情况下降低电池组的电压来实现的。所提出的 MSOBC 是一种集成式 OBC,可在牵引和制动期间操作电动汽车,并为电池组充电。MSOBC 由多个子模块组成,其中包括连接在交流侧的全桥电压源转换器和安装在电池侧的 SEPIC 转换器。SEPIC 转换器以连续电流控制电池组,因为它有一个输入电感器,无需大型电解电容就能平滑电池电流。隔离型 SEPIC 转换器可在电池和交流输出端之间提供电隔离,从而提高系统的安全性。本文介绍了必要的控制回路,以确保电动汽车在充电和温度平衡方面使用 MSOBC 实现最佳运行,同时不干扰所需的运行模式。本文中的数学分析使用由 TMS320F28335 DSP 控制的全尺寸电动汽车进行了验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Design and Control of a Modular Integrated On-Board Battery Charger for EV Applications with Cell Balancing
This paper presents operation and control systems for a new modular on-board charger (OBC) based on a SEPIC converter (MSOBC) for electric vehicle (EV) applications. The MSOBC aims to modularise the battery units in the energy storage system of the EV to provide better safety and improved operation. This is mainly achieved by reducing the voltage of the battery packs without sacrificing the performance required by the HV system. The proposed MSOBC is an integrated OBC which can operate the EV during traction and braking, as well as charge the battery units. The MSOBC is composed of several submodules consisting of a full-bridge voltage source converter connected on the ac side and SEPIC converter installed on the battery side. The SEPIC converter controls the battery segments with a continuous current because it has an input inductor which can smooth the battery’s currents without the need for large electrolytic capacitors. The isolated version of the SEPIC converter is employed to enhance the system’s safety by providing galvanic isolation between the batteries and the ac output side. This paper presents the necessary control loops to ensure the optimal operation of the EV with the MSOBC in terms of charge and temperature balance without disturbing the required modes of operation. The mathematical analyses in this paper are validated using a full-scale EV controlled by TMS320F28335 DSP.
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来源期刊
Batteries
Batteries Energy-Energy Engineering and Power Technology
CiteScore
4.00
自引率
15.00%
发文量
217
审稿时长
7 weeks
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