Implementation of a bidirectional DC-DC in electric powertrains for drive cycles used by medium duty delivery trucks
Implementation of a bidirectional DC-DC in electric powertrains for drive cycles used by medium duty delivery trucks
复制标题
在中型货车驱动循环的电动动力系统中实施双向 DC-DC
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
B. Boulet
中科院分区：
文献类型：
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作者：
Ali Najmabadi;Kieran Humphries;B. Boulet
不同的动力系统拓扑结构在用于电动车辆时具有各种优点和缺点。在本文中，两种不同的动力系统的效率进行了比较。这两种设计都使用2电平逆变器和表面安装的永磁同步电机（PMSM）。在第一种设计中，逆变器直接由高压电池供电，并使用传统的脉宽调制（PWM）进行操作。在第二种设计中，双向DC-DC用于将较低电压电池连接到逆变器，并且使用可变DC链路电压策略来操作。这两个系统分别称为S1和S2。动力系统设计用于操作4级运输卡车，该卡车由连接到每个后轮组件的一个电机驱动。这些系统的效率图检查的上下文中不同的驱动周期的送货卡车。此外，标准和实验捕获的驱动周期进行了比较，结果表明系统S2是最有效的条件下。
Different powertrain topologies have various advantages and disadvantages when used in electric vehicles. In this paper, the efficiencies of two different powertrains are compared. Both designs use a 2 level inverter and a surface mounted Permanent Magnet Synchronous Motor (PMSM). In the first design the inverter is directly powered by a high voltage battery and is operated using traditional pulse-width modulation (PWM). In the second design a bidirectional DC-DC is used to connect a lower voltage battery to the inverter and is operated using a variable DC link voltage strategy. These two systems are referred to as S1 and S2, respectively. The powertrains are designed to operate a class 4 delivery truck, which is driven by one motor attached to each rear wheel assembly. The efficiency maps of these systems are examined in the context of different drive cycles for a delivery truck. Furthermore, standard and experimentally captured drive cycles are compared and the results demonstrate the conditions under which system S2 is most effective.