DIY AC EV Motor

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Stiive
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DIY AC EV Motor

Post by Stiive » Mon, 08 Oct 2012, 16:26

I was wondering if anyone on this forum has made a DIY AC (sync or aysnc) EV sized (> ~60kW) motor.
I'm talking about design and make the stator+rotor laminations, not just a rewind.

It'd be very interesting to get some details or read the thread if so.

Rgds,
Stiive

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Richo
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DIY AC EV Motor

Post by Richo » Mon, 08 Oct 2012, 21:01

The only motor I would consider making would be an ironless axial flux.
You would have to be really keen to punch out a stack of lamintations.
Could laser them.
But the cost would go through the roof.

Sorry I haven't seen anything other than the CSIRO style motor which isn't car EV sized.
So the short answer is NO but the long answer is YES.
Help prevent road rage - get outta my way!

Stiive
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DIY AC EV Motor

Post by Stiive » Mon, 08 Oct 2012, 21:30

Yeh you'd definitely laser cut them.

Hmm I thought maybe the Scott Drive (sold by Greenstage) may have made their own motors, but looking at some pics I see its got Chinese writing on it.
Apparently (from Greenstage again) the SwitchEV induction motor is made in NZ though, but cant find any details on it.


I'd be interested in making an IM EV motor, if you could get the laser cutting sponsored, should be pretty cheap apart from the silicon steel. Cheaper than the $10k most reputable manufacturers want for their motors (e.g. Siemens 1PV5138-4WS24).


Obviously it will always be cheaper to rewind, but id only do it for fun. I'm not seriously looking at doing it yet though, just seeing if anyone else has. I'm not even planning/interested in an EV conversion, so it wouldn't have much use to me either haha, apart from the experience.

Seen a few DIY ~20kW PM motors, but nothing bigger. TBH I think a PM motor would be easier, but for some reason I'm biased to IM

Rgds,
Stiive

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