60kW 400V EV Motor Controller

Electric Motors and Controllers
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InazumaRyuu   10 µW

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60kW 400V EV Motor Controller

Post by InazumaRyuu » Mar 08 2020 11:56am

Hi,

I have found a really cheap 60Kw Motor but it is a 3 Phase asynchronous perm magnet brushless (PMSM) motor, I was wondering if anyone could help on how to control this:

https://www.ebay.co.uk/itm/60kW-EV-Moto ... %7Ciid%3A1

Is it possible to buy an off the shelf motor controller for it?

Thanks

KWS Seuren   10 mW

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Re: 60kW 400V EV Motor Controller

Post by KWS Seuren » Mar 10 2020 10:52am

You could use an industrial frequency converter for this induction motor. Or take a look at sevcon. They have high voltage controllers too.

InazumaRyuu   10 µW

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Re: 60kW 400V EV Motor Controller

Post by InazumaRyuu » Mar 12 2020 4:42pm

Thanks for the reply, would that work though? as this is different from a normal 3 phase induction motor becasue it has permanent magnets in too.

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amberwolf   100 GW

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Re: 60kW 400V EV Motor Controller

Post by amberwolf » Mar 13 2020 3:10am

if it's a regular bldc motor, then you use a regular bldc controller.

the first limitation is you need to use one that has the same encoder input as the motor (sin/cos, hall, optical, etc).

the second limitation is you need to use one that can handle the voltage and current that your vehicle/bike/system is going to need to do the things you want it to do.

the voltage of the motor itself doesn't matter, except that if you want to use it's full rpm you need to use it's full voltage, thus the controller's voltage range needs to match what you need out of the motor.

since the page says it's an emrax motor, then using an emrax controller would be the best match.

other than that, i'm sure there's a sevcon to use for it, but you'd have to learn how to program and setup a sevcon for a specific motor and application (as well as buying the hardware and software to do that when you buy the controller).

afaik just about all the high power controllers for this size of motor are likely to require setup and programming specific to the motor.

Punx0r   100 GW

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Re: 60kW 400V EV Motor Controller

Post by Punx0r » Mar 15 2020 6:41am

I'm pretty sure the last 3 phase 400v industrial induction motor drive I messed with could also drive permanent magnetic motors via a sin/cos resolver. It was about 30kW and about the size of 1.5 shoe boxes

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amberwolf   100 GW

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Re: 60kW 400V EV Motor Controller

Post by amberwolf » Mar 15 2020 10:25pm

Punx0r wrote:
Mar 15 2020 6:41am
I'm pretty sure the last 3 phase 400v industrial induction motor drive I messed with could also drive permanent magnetic motors via a sin/cos resolver. It was about 30kW and about the size of 1.5 shoe boxes
just curious (never used these) was the controller powered from ac, or dc?

Punx0r   100 GW

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Re: 60kW 400V EV Motor Controller

Post by Punx0r » Mar 16 2020 4:10am

It was running from 3-phase 400V AC mains but I think it could also take a lower voltage single phase AC input and boost the voltage and convert to 3 phase. No idea if it could take a DC input - suspect it might but it wasn't in the manual. It was a WEG unit. IGBT based thing.

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