nieles
10 kW
500hz sounds about right from what i have read on this forum.
500 x 60 = 30.000 e-rpm
so with 7 pole pairs you can run at a max of ~4500rpm
500 x 60 = 30.000 e-rpm
so with 7 pole pairs you can run at a max of ~4500rpm
Luke has posted it someware and 30,000 erpm is about right.Alan B said:Perhaps. They don't seem to make it clear in their data sheets.
Ryan what do you think the hardware will limit the sevcon to...? I would say as they update their firmware there will be a Hard limit of the main chip. Eventually they will have to make a updated controller with a new chip. But I bet they are already in Beta testing.... If a company wants to stick around in the controller industry they will be constantly updating both firmware and hardware. Its exciting to think what will be commercially available in just a matter of time.Biff said:Sevcon doesn't have a hard limit, with previous firmware current control got sketchy above 500Hz so they didn't recommend exceeding that. Sevcon is continually updating their firmware so you might be able to push things past 500Hz now, but don't expect it to go much past that, 550, maybe 600Hz if you have a very sinusoid backEMF, and excellent position sensing.
-ryan
Lebowski they use ~5 year old tech I think when you grabbed a dspic30f4011 about 1 year ago it was still quite new right?Lebowski said:Still, I'm surprised how low it is....
Not really I think, it should also be a few years old already cause the next generation is already there, 33F'sArlo1 said:Lebowski they use ~5 year old tech I think when you grabbed a dspic30f4011 about 1 year ago it was still quite new right?Lebowski said:Still, I'm surprised how low it is....
Biff said:Sevcon doesn't have a hard limit, with previous firmware current control got sketchy above 500Hz so they didn't recommend exceeding that. Sevcon is continually updating their firmware so you might be able to push things past 500Hz now, but don't expect it to go much past that, 550, maybe 600Hz if you have a very sinusoid backEMF, and excellent position sensing.
-ryan
They're not even sensorless ?Biff said:Sevcon doesn't have a hard limit, with previous firmware current control got sketchy above 500Hz so they didn't recommend exceeding that. Sevcon is continually updating their firmware so you might be able to push things past 500Hz now, but don't expect it to go much past that, 550, maybe 600Hz if you have a very sinusoid backEMF, and excellent position sensing.
-ryan
Mine shouldh0tr0d said:Biff said:Sevcon doesn't have a hard limit, with previous firmware current control got sketchy above 500Hz so they didn't recommend exceeding that. Sevcon is continually updating their firmware so you might be able to push things past 500Hz now, but don't expect it to go much past that, 550, maybe 600Hz if you have a very sinusoid backEMF, and excellent position sensing.
-ryan
When they reach 2 kHz someone PM me...
I think his plan is to write the software and make money from it and let someone else build the hardwareh0tr0d said:Lebowski, The Dude, Sir...
I have to ask you the following:
If you don't think there's money to be made from your controller, why make it open source and become the next world hero in electric mobility?
Just because I didn't post it, doesn't mean I didn't did it. My present controller is 36% more powerful and 5% more efficient than original. In due time I'll post it...Arlo1 said:Hotrod I don't know what your deal is but you are way to eager without actually doing anything your self.
h0tr0d said:Lebowski, The Dude, Sir...
I have to ask you the following:
If you don't think there's money to be made from your controller, why make it open source and become the next world hero in electric mobility?