DC-DC Converter for Scalable On-Board Electric Vehicle Battery Chargers**

Murata Power Solutions是一家主要的电力电子元件和电源制造商，总部位于安大略的万锦市。然而，由于其传统上专注于电信产品和解决方案，因此在其目前的产品线中缺少汽车行业的解决方案。其中一个日益重要的产品线是所谓的车载充电器（OBC），用于插电式电动汽车（PEV）。为了弥合上述差距，该研究项目旨在设计，建模，原型和测试4千瓦DC-DC转换器，该转换器将作为OBC的构建模块。本项目中开发的DC-DC转换器将具有电流隔离，输入电压为400 V，输出电压为200 V至400 V。电流隔离不仅可确保符合适用的安全标准，还可将两个或三个DC-DC转换器分别并联连接到分相输入OBC或三相输入OBC。因此，基于这种模块化方法，预期的DC-DC转换器将用作4 kW、8 kW或12 kW完整OBC的构建块。* 该项目将至少在三个方面使加拿大受益：1）它将有助于加拿大电动汽车的进一步普及，从而减少汽车行业的碳足迹; 2）它将丰富加拿大公司Murata的技术知识和竞争力，使其成为新兴和快速增长的汽车电子市场的主要参与者;村田的成功将反过来为加拿大人创造就业机会; 3）它将丰富瑞尔森大学研究生和实习生的经验和培训。

Murata Power Solutions is a major manufacturer of power-electronic components and power supplies, headquartered in Markham, Ontario. However, due to its traditional focus on products and solutions for telecommunications, it is missing solutions for automotive industry in its present line of products. One such increasingly important line of product is the so-called on-board charger (OBC) for plug-in electric vehicles (PEV). To bridge the aforementioned gap, this research project aims to design, model, prototype, and test a 4-kW DC-DC converter that will serve as the building block of an OBC. The DC-DC converter to be developed in this project will have galvanic isolation, an input voltage of 400 V, an output voltage varying from 200 V to 400 V. The galvanic isolation will not only ensure compliance to applicable safety standards, but it also allows parallel connection of two or three DC-DC converters, towards a split-phase-input OBC or a three-phase-input OBC, respectively. Based on this modular approach, therefore, the intended DC-DC converter will serve as the building block for a 4-kW, an 8-kW, or a 12-kW complete OBC. ****The project will benefit Canada in at least three ways: 1) it will contribute to further proliferation of electric vehicles in Canada, thus reducing the carbon footprint of the automotive sector; 2) it will enrich the technical knowhow and competitiveness of a Canadian company, Murata, in establishing itself as a major player in the emerging and rapidly growing market of automotive electronics; Murata's success will, in turn, create jobs for Canadians; and 3) it will enrich the experience and training of Ryerson University graduate students and trainees.**