Prototype axial-flux motor with integrated inverters unveiled by Bluways

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Bluways, a Belgium-based developer of SiC-based inverters, high-power NMC batteries and electric motors, used the recent iVT Expo in Cologne, Germany, to debut its latest development, a 15kW permanent magnet, axial-flux motor with fully integrated power electronics.

“Each inductor on the motor has its own inverter,” explained Wim Vander Kuylen, project manager at Bluways. “What that means is that you have complete redundancy: even if one fails, the motor will still run.”

The inverters and power electronics share a cooling circuit, while the use of SiC semiconductors means high switching frequencies for precise motor control and greater efficiency.

“The integrated nature of the design means that instead of having two different devices to mount, you have just one with only three connections needed, DC+/- and the controller. Looking at the redundancy, it would be almost impossible, or at least impractical, to achieve using a separate motor and inverter system,” added Vander Kuylen.

The development prototype shown at the expo weighs 10kg and operates at 650V with a 30A current draw.

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Lawrence has been covering engineering subjects – with a focus on motorsport technology – since 2007 and has edited and contributed to a variety of international titles. Currently he is responsible for content across UKI Media & Events' portfolio of websites while also writing for the company's print titles.

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