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首页> 外文期刊>IEEE Transactions on Industrial Electronics >A Wide Range Unidirectional Isolated DC-DC Converter for Fuel Cell Electric Vehicles
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A Wide Range Unidirectional Isolated DC-DC Converter for Fuel Cell Electric Vehicles

机译：用于燃料电池电动车辆的宽范围的单向隔离直流转换器

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摘要

A low-cost unidirectional dc/dc converter with galvanic isolation for fuel cell electric vehicles is presented in this article. To satisfy the requirements of the fuel cell stack and powertrain system of heavy-duty vehicles, three operation modes: boost, buck-boost, and buck, are proposed. To achieve ZVS operation for low voltage side switching devices, a novel platform current control mechanism is introduced. With the help of the platform current controller, the zero-voltage-switching operation is independent of the input/output voltage ratio. Meanwhile, the near zero-current-switching can be achieved for low voltage side switches under boost mode. The steady-state analyses and small-signal models for both input and platform currents under boost mode are provided. The prototype unit is built, and the corresponding experiments are presented.
机译：本文提出了一种具有电池电动汽车电流隔离的低成本单向DC / DC转换器。为了满足燃料电池堆和重型车辆动力总成系统的要求，提出了三种操作模式：提升，降压 - 升压和降压。为了实现低压侧开关装置的ZVS操作，介绍了一种新颖的平台电流控制机构。借助平台电流控制器，零电压切换操作与输入/输出电压比无关。同时，可以在升压模式下为低压侧开关实现接近零电流切换。提供了升压模式下输入和平台电流的稳态分析和小信号模型。构建原型单元，并提出了相应的实验。

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