ABSTRACT This article presents a design of the three-phase Electric vehicle (EV) charger with a wide-output voltage range. The proposed charger is based on a voltage-fed/isolated power factor correction (PFC) converter followed by a non-isolated DC/DC converter. The three-phase PFC converter come from asymmetrical dual active bridge (ADAB) converter having zero-voltage- and zero-current-switching (ZV-ZCS) operation in the primary side so that a low-cost device such as Insulated gate bipolar junction transistor (IGBT) is available despite of a high switching frequency. Also, since the PFC converter adopts the harmonic modulation technique that can be implemented in a simple equation, all the controls for the three-phase PFC converter and the non-isolated DC/DC converter can be implemented with a simple digital controller by excluding fast current loops for input current harmonic regulation. The feasibility of the proposed charger has been verified with a 10kW prototype.

中文翻译：

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基于电压馈电隔离PFC变换器的宽输出电压范围10kW三相电动汽车充电器设计

摘要 本文介绍了一种具有宽输出电压范围的三相电动汽车 (EV) 充电器的设计。建议的充电器基于电压馈电/隔离式功率因数校正 (PFC) 转换器，然后是非隔离式 DC/DC 转换器。三相 PFC 转换器来自非对称双有源桥 (ADAB) 转换器，在初级侧具有零电压和零电流开关 (ZV-ZCS) 操作，因此绝缘栅双极结等低成本器件尽管开关频率很高，但晶体管 (IGBT) 仍然可用。此外，由于 PFC 转换器采用谐波调制技术，可以在一个简单的方程中实现，三相 PFC 转换器和非隔离 DC/DC 转换器的所有控制都可以通过一个简单的数字控制器实现，排除了用于输入电流谐波调节的快速电流环路。已使用 10kW 原型验证了所提议充电器的可行性。