Technologies

UNSW engineers introduced a new high-speed electric motor

The electric motor is capable of speeds up to 100,000 rpm

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An editor at eMobilCar


  • 3 min read

University of New South Wales (UNSW) engineers have created a new high-speed motor that can extend the range of electric vehicles. The design was inspired by the longest railway bridge in South Korea and is capable of speeds up to 100,000 rpm.

The maximum power and speed of 100,000 rpm achieved by this new motor has successfully surpassed and doubled the existing speed record of laminated IPMSMs (Internal Permanent Magnet Synchronous Motor), making it the world's fastest IPMSM ever made with commercially available laminates. materials. Most importantly, the engine is capable of producing very high power density and greatly reduces the use of rare earth materials, which would save on weight and construction costs.

One of the trends in the development of electric vehicles is the use of motors that rotate at a higher speed. Every electric car manufacturer is trying to develop high-speed motors, and the reason is that the nature of the law of physics allows you to reduce the size of this car. And a smaller car weighs less and uses less energy, giving the car more range. In this research project, we tried to reach the absolute top speed and we recorded over 100,000 rpm and a peak power density of about 7 kW per kilogram

The electric drive system is also scalable, and the power and speed can be adjusted. The researcher adds that it will take about 6-12 months to modify the engine, for example, according to the needs of Tesla.

We have our own machine design software package that we can enter speed or power density requirements into and have the system up and running in a matter of weeks, and that gives us an optimal design that meets those needs

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