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What is (ab)normal plots, can you share your's?

Posted: Fri May 01, 2020 4:30 pm
by joromy
I would like to learn more about what values to expect in the Spot Values and plots.
Sometimes I'm are a little puzzled of the values I get.
If we could gather some of them here in this tread, and compare.
And maybe I could make a wiki page of "normal" plots/values to expect.

For example this is a plot of ilmax and idc, in a 2145kg (4731lbs) truck with a Siemens ACIM motor and 300V battery.
First values are start on flat ground and the the higher one are slowly drive up a 10cm edge in to my garage.

I get about 200A ilmax and 12A idc.
Plot _ilmax_idc.JPG

Re: What is (ab)normal plots, can you share your's?

Posted: Sun May 03, 2020 2:48 pm
by joromy
Same truck, same situation:

il1, il2 and uac.
Plot _il1_il2_uac.JPG

Re: What is (ab)normal plots, can you share your's?

Posted: Sun May 10, 2020 9:08 pm
by joromy
Is this normal?
When I plot angle I get changes from 0 to 360, when truck is completely standstill!
angle_at_stand_still.jpg
Sorry about the picture quality, was in a hurry, will u/l a better one.....

Re: What is (ab)normal plots, can you share your's?

Posted: Sun May 10, 2020 9:27 pm
by Isaac96
I'm getting the same changes, haven't yet been able to see if it runs (blew up my inverter again).
Angle just keeps changing. No idea what causes it. Does rotating your wheels also affect angle?

Re: What is (ab)normal plots, can you share your's?

Posted: Sun May 10, 2020 9:33 pm
by joromy
My truck is drive able, but I'm not satisfied with slow speed jitter. And sometimes overcurrent.
Can live with it until Johannes will implement vector control for ACIM :D