A new approach to obtain an integrated battery charger is described in this paper, based on the Asymmetrical Hybrid Multilevel Converter topology. Such a particular open-end winding motor configuration, which has proved to be more efficient than conventional inverter topologies in EV motor drive applications, can be turned in an on-board battery charger only by acting on the control system. Thus, no circuit reconfiguration through electro-mechanical switches is required. Moreover, by introducing a single extra power switch, a bilateral power flow can be managed enabling vehicle to grid operations. The obtained integrated battery charger can be supplied either by a standard ac single-phase grid, either by a dc power source for direct connection to domestic energy resources. The proposed approach enables a new remarkable function to the asymmetrical hybrid multilevel converter at a marginal extra cost, thus mitigating the larger complexity and cost of such an inverter if compared with conventional topologies.

中文翻译：

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基于开放式绕组多级配置的V2G集成电池充电器

本文介绍了一种基于非对称混合多电平转换器拓扑结构的集成电池充电器的新方法。事实证明，这种特殊的开放式绕组电动机配置比EV电动机驱动应用中的常规逆变器拓扑结构更有效，只有通过作用于控制系统，才能在车载电池充电器中对其进行转向。因此，不需要通过机电开关的电路重新配置。此外，通过引入单个额外的功率开关，可以管理双向功率流，使车辆能够并网运行。所获得的集成式电池充电器可以通过标准的交流单相电网或直流电源直接连接到家用能源来提供。