NOVEL ELECTRIC MACHINE DESIGN TOPOLOGIES FOR ELECTRIFIED TRANSPORTATION

用于电气化交通的新型电机设计拓扑

• 批准号: RGPIN-2020-06805
• 负责人: Pillay, Pragasen
• 金额: $ 4.66万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=718520
• 关键词: NOVEL; ELECTRIC; MACHINE; DESIGN; TOPOLOGIES

There has been considerable progress in electrified transportation in recent years, including air, marine and ground applications. The heart of these systems is the electrical machine. The types of machine technologies adopted for traction and auxiliaries varies considerably by manufacturer and application. Induction, permanent magnet and switched reluctance have all been adopted with the synchronous reluctance receiving serious attention. Power density and reliability are key issues for marine and aircraft applications. The proposal will address three important areas of machine design for electrified transportation: a) Investigation of new topologies of electrical machines using novel materials and manufacturing techniques, b) detailed design of the variable flux machine, a new candidate for traction and c) the development of a novel core loss tester to measure the losses of electrical machines after assembly. In a) novel cold spray manufacturing of permanent magnets will be investigated so that arbitrary shapes and sizes may be printed onto or into an electrical machine. 3-D flux paths and novel shapes to reduce cogging torque are some of the areas to be explored. This equates to 3-D printing of parts of the machine. The PI also proposed a new concept in variable flux machines and numerous advances to this initial idea are proposed. In b) the idea of developing a hybrid between a variable flux and regular PMSM is explored. The idea is to retain the ability to magnetize and demagnetize the magnet with an external pulse, thus providing flux control while alleviating some of the drawbacks associated with the low coercive force, in particular inadvertent demagnetization with armature flux. The PI has done considerable work in the measurements and calculation of core losses in machines and c) addresses the key question of losses in a machine that has already been assembled as opposed to the laminations. All the previous works on core losses by the PI have been on laminations. However significant changes in properties can occur as a result of manufacturing and hence a novel tester is proposed to determine these losses. The HQP trained by the PI have all been absorbed into local industry, government laboratories or academic positions around the world. The employment by local industry in particular has a direct benefit to Canada. The area of electrified transportation in particular is of vital importance to Canada and is part of the vision of Concordia University and Québec.

近年来，电气化运输取得了长足的进步，包括空中、海上和地面应用，这些系统的核心是电机。牵引和辅助设备所采用的机器技术类型因制造商和应用而异。磁体和开关磁阻均已被采用，其中同步磁阻受到广泛关注。功率密度和可靠性是船舶和飞机应用的关键问题。 该提案将涉及电气化运输机器设计的三个重要领域：a）使用新型材料和制造技术研究电机的新拓扑，b）可变通量机器的详细设计，牵引的新候选者和c）开发一种新型磁芯损耗测试仪，用于测量组装后电机的损耗。 a) 将研究永磁体的新型冷喷涂制造，以便可以将任意形状和尺寸打印到电机上或电机中，以及减少齿槽转矩的新颖形状是需要探索的一些领域。这相当于机器部件的 3D 打印，PI 还提出了可变通量机器的新概念，并且在 b) 中提出了开发可变通量和可变通量机器之间的混合体的想法。探索常规 PMSM 的想法是保留。能够通过外部脉冲对磁体进行磁化和退磁，从而提供磁通控制，同时减轻与低矫顽力相关的一些缺点，特别是电枢磁通的无意退磁。PI 在测量和计算磁通方面做了相当多的工作。然而，机器中的磁芯损耗和 c) 解决了与叠片相对的已组装机器中的损耗的关键问题，PI 之前关于磁芯损耗的所有工作都针对叠片进行了重大更改。制造过程中可能会出现性能损失，因此提出了一种新型测试仪来确定这些损失。 PI培养的HQP均被吸收到世界各地的当地工业、政府实验室或学术职位，尤其是当地工业的就业对加拿大的电气化交通领域至关重要。到加拿大，这是康考迪亚大学和魁北克愿景的一部分。