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resistance and inductance value changes when each measurement

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alexshen2012
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Joined: 2022-06-30 11:14
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resistance and inductance value changes when each measurement

hw4.0

motor:42jsf630as-1000, 8 poles 

vesc:release_5_03

When measuring the res and ind, I fould that the value changes, about the res result, can I say less than 3A is too small to lock when measuring the res, for when larger than 3A, the res result is almost the same.

But about the ind, I really have no idea why it changes in different duty, and it even shifts in same duty.

I used a RCL to test the res and ind between phase to phase, the res should be 0.55 omh and the ind should be 295 uH. Neither matches the result. 

Anyone who can help, thank you.

res_ind.png

ind.png