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首页> 外文会议>IEEE International Power Electronics and Application Conference and Exposition >Voltage-Sharing Control Method of Series-Connected Bi-Directional DC-DC Converters based on Battery SOC for Hybrid Electric Vehicle
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Voltage-Sharing Control Method of Series-Connected Bi-Directional DC-DC Converters based on Battery SOC for Hybrid Electric Vehicle

机译：基于电池SOC的混合动力汽车电池SOC串联双向DC-DC转换器的电压共用控制方法

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摘要

This paper proposes voltage-sharing control method of series-connected bi-directional DC-DC converters based on battery SOC for hybrid electric vehicle. Series-connected DC-DC converters is capable to achieve high step-up DC link voltage for propulsion of electric motor. This circuit can contribute to step-down output voltage of DC-DC converters. However, this configuration causes state-of-charge (SOC) differences between battery modules which connected in each DC-DC converters and decrease of the available battery capacity to generate electric motor. To increase the available battery capacity and balance the SOC difference, voltage-sharing control method is proposed. A scaled down prototype carried out with three-phase series-connected DC-DC converter and simulation results are indicated to confirm the validity of proposed SOC balancing algorithm.
机译：本文提出了基于电池SOC用于混合动力电动车辆的串联双向DC-DC转换器的电压共用控制方法。系列连接的DC-DC转换器能够实现电动机推进的高升压直流链路电压。该电路可以有助于DC-DC转换器的降压输出电压。然而，该配置导致电池模块之间的充电状态（SOC）差异，该电池模块连接在每个DC-DC转换器中的电池模块和可用电池容量的降低以产生电动机。为了提高可用的电池容量和平衡SOC差异，提出了电压共享控制方法。用三相串联连接的DC-DC转换器和仿真结果进行了缩放的缩小原型，以确认所提出的SoC平衡算法的有效性。

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