Open source inverter

Technical discussion on converting internal combustion to electric
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Kelt
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Open source inverter

Post by Kelt » Sun, 28 Jan 2018, 11:15

Hey Chums,

http://www.instructables.com/id/200kW-A ... ctric-Car/

Thinking about getting my feet wet by jumping in the deep-end.

Generally my question is will this controller linked above end up costing more than using something off the shelf already? Or be so frustrating to get it to work that it's not worth the effort?

Thanks.

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woody
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Re: Open source inverter

Post by woody » Sun, 28 Jan 2018, 12:20

I wonder who his friend in Australia he mentions at the end is?
Planned EV: '63 Cortina using AC and LiFePO4 Battery Pack

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Johny
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Re: Open source inverter

Post by Johny » Sun, 28 Jan 2018, 12:33

Very detailed documentation. It looks pretty good to me. Since I have an AC motor and the car is under-controller powered - I find this very interesting too.

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Richo
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Re: Open source inverter

Post by Richo » Mon, 29 Jan 2018, 12:31

Kelt wrote:
Sun, 28 Jan 2018, 11:15
Generally my question is will this controller linked above end up costing more than using something off the shelf already?
Generally it should cost less than anything off the shelf.
The only cheap alternative is the low voltage curtis stuff.

But I'll warn you that end is very deep..

If you are going around 70kW or above then if you have the ability making it should be cheaper.
Below 70kW there may be motor+controller packages that could be cheaper.
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Richo
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Re: Open source inverter

Post by Richo » Mon, 29 Jan 2018, 12:58

That power ring cap is weird.
Seems a lot of work goes into fitting it.
Unfortunately I doub't 5-9 similar spec'd standard shaped caps would be cheaper.
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Richo
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Re: Open source inverter

Post by Richo » Tue, 30 Jan 2018, 12:31

Here is the link the the previous Open source Inverter thread.
viewtopic.php?f=18&t=317&hilit=open+inverter
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Richo
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Re: Open source inverter

Post by Richo » Tue, 30 Jan 2018, 12:42

And here is the link to the curtis 1239E-85xx
72-144V (170V Max)
500A (1min) - 135A Cont
So ~20kW cont / ~70kW Peak.
http://m.curtisinstruments.com/circuits ... ProdID=612

http://www.evwest.com/catalog/product_i ... cts_id=230
At a guess landed in AUS would be $4,250 incl duty+tax.
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