Design of a Wound Field Synchronous Motor for a Propulsion Application

交通运输部门是温室气体排放的最主要贡献者之一。加拿大的交通运输部门占温室气体排放量的27%。作为温室气体排放的主要贡献者，交通运输部门必须从化石燃料驱动的车辆转变为电气化。汽车原始设备制造商（OEM）已经宣布了积极的电气化目标。在主要的汽车原始设备制造商中，Stellantis拥有最积极的电气化目标之一。到2030年，Stellantis的混合动力和电动汽车销量将占Stellantis在欧洲总销量的70%，在美国的销量将超过40%。这些积极的电气化战略旨在大幅增加产量，并需要能够提供高功率密度，高效率和可持续供应链的电力推进电机解决方案。今天，大多数推进电机都是永磁同步电机。这些电机提供高扭矩密度和高效率，特别是在低速时。但它们在转子上使用了高能量密度的永磁体，这种永磁体是由稀土金属制成的。稀土金属的成本、可用性和供应链问题可能会阻碍汽车行业开发和制造高效率、高性能和负担得起的电力推进电机，从而实现其积极的电气化目标。拟议的项目旨在通过设计一种无稀土的电力推进发动机来解决这些问题。Stellantis和麦克马斯特大学正在联手参与该项目，为Stellantis的下一代电气化动力系统设计绕线场同步电机。该项目的成果将为Stellantis提供一种不含稀土的电机设计，可用于其下一代产品。

The transportation sector is one of the most significant contributors to greenhouse gas (GHG) emissions. The transportation sector in Canada is responsible for 27% of GHG emissions. As a major contributor to GHG emissions, the transportation sector must transform from fossil fuel-powered vehicles to electrification. Automotive original equipment manufacturers (OEMs) have announced aggressive targets for electrification. Among the major auto OEMs, Stellantis has one of the most aggressive electrification goals. In 2030, hybrid and electric vehicle sales of Stellantis will account for 70% of the total sales of Stellantis in Europe and more than 40% in the United States.These aggressive electrification strategies target a significant increase in production volume and require electric propulsion motor solutions that can provide high power density, high efficiency, and a sustainable supply chain. Today, the majority of propulsion motors are permanent magnet synchronous motors. These motors provide high torque density and high efficiency, especially at low speeds. But they utilize high-energy-density permanent magnets on the rotor, which are made of rare earth metals. The issues with the cost, availability, and supply chain of rare earth metals might prevent the automotive industry from developing and manufacturing high-efficiency, high-performance, and affordable electric propulsion motors and, hence, achieving their aggressive electrification goals. The proposed project targets to address these issues by designing a rare-earth-free electric propulsion motor. Stellantis and McMaster University are joining forces in this project to design a wound-field synchronous motor for Stellantis' next-generation electrified powertrains. The outcome of this project will provide Stellantis with a rare-earth-free motor design that can be incorporated into their next-generation products.