High Torque Electrical Machine

高扭矩电机

• 批准号: 86564
• 金额: $ 12.27万
• 依托单位: BATHWICK ELECTRICAL DESIGN LIMITED
• 依托单位国家: 英国
• 项目类别: Collaborative R&D
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=86564
• 关键词: Torque; Electrical; Machine

The COVID-19 pandemic has highlighted the need to maintain and develop our own domestic manufacturing base.Total UK GDP fell by 20.4% in the three months to June 2020, and the manufacturing sector share fell by 20.2%. (ONS)Our proposal concerns a novel high torque electrical machine which has potential for wide application ranging from robotics, machine tools and marine propulsion, to wind turbines, wave and tidal energy.BEDL have recently developed and patented a novel type of electrical machine which relies on magnetic gearing to produce high torque economically from a compact space envelope.One important measure of a compact high torque electrical machine is the airgap shear stress. This indicates the force produced by the machine for each unit of area at the airgap between the moving part and the stationary part of the machine, either a motor or generator.The airgap shear stress of the BEDL machines is higher than that of any other rotating electrical machines, either conventional or superconducting. Values up to around 700kN/m/m are possible for the BEDL machines with standard materials, most published superconducting machine data implies values less than 200kN/m/m..At the heart of the new machines is a magnetic worm and wheel which is functionally the same as a standard mechanical worm and wheel, but instead of mechanical teeth which mesh with each other, there is no physical contact in the magnetic system allowing very low friction and the ability to slip without damage if overloaded.Recent machines designed and built by BEDL have included a 1.2m o/d rotary machine with 63:1 gearing in a single stage.The proposed new project:Design, build and test a new integrated-generator magnetic worm machine for our existing 1.2m o/d rotary machine. This is an essential step towards demonstrating the full torque density of our new technology. Our previous proof-of-principle rig involved external motor/generators driving the magnetic worms via shafts but this does not allow the magnetic wheel to be fully populated with magnetic worms as in the case of this new test rig. The new rig will also enable the development of the control system required for this novel machine.We will carry out a series of costed FEED (Front End Engineering Design) studies:A 15MW windturbine generator FEED study.A FEED study for a marine propulsion motor.A FEED study for a tidal generator.

2019冠状病毒病疫情凸显了维持和发展我们自己的国内制造业基础的必要性。截至2020年6月的三个月，英国国内生产总值下降了20. 4%，制造业占比下降了20. 2%。（ONS）我们的建议涉及一种新型高扭矩电机，其具有广泛应用的潜力，从机器人、机床和船舶推进到风力涡轮机，波浪和潮汐能。BEDL最近开发了一种新型电机并获得专利，该电机依靠磁传动装置从紧凑的空间包络中经济地产生高扭矩。紧凑型高扭矩电机的一个重要措施是，气隙剪切应力这表示电机在电机（电动机或发电机）的运动部分和静止部分之间的气隙处每单位面积产生的力。BEDL电机的气隙剪切应力高于任何其他旋转电机（无论是传统电机还是超导电机）。对于使用标准材料的BEDL机器，最高可达约700 kN/m/m的值，大多数已发表的超导机器数据表明值小于200 kN/m/m。新机器的核心是磁性蜗轮蜗杆，其功能与标准机械蜗轮蜗杆相同，但不是相互啮合的机械齿，磁性系统中没有物理接触，允许非常低的摩擦力，并且在过载时能够滑动而不损坏。BEDL最近设计和建造的机器包括1.2m o/d旋转机器，具有63：建议的新项目：为我们现有的1.2m o/d旋转机器设计、建造和测试一种新的集成发电机磁蜗杆机器。这是向展示我们新技术的全扭矩密度迈出的重要一步。我们之前的原理验证装置涉及通过轴驱动磁蠕虫的外部电动机/发电机，但这不允许磁轮完全填充磁蠕虫，就像这个新的测试装置一样。我们将进行一系列成本高昂的前端工程设计（FEED）研究：15 MW风力涡轮发电机FEED研究、船用推进电机FEED研究、潮汐发电机FEED研究。