Using a look-up table for decoupling waveforms
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Milos Bozovic
le 3 Juil 2023
Réponse apportée : Andy Bartlett
le 5 Juil 2023
Hello everyone,
I am building a vector tracking observer to estimate the PMSM rotor position. I want to do harmonic decoupling. The idea is to build a 'perfect' decoupling waveforms, and store them so they can be used from the look-up tables. But the problem is they look like this:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1425188/image.png)
The input to the look-up table is the rotor position going from 0 to 2*pi, and the output should be the corresponding value from this waveform.
But this is not usable for the standard look-up table and I get an error: "Values of BreakpointsForDimension1 in '...' must be monotonically increasing.
Is there a way around this?
Thank you.
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Andy Bartlett
le 5 Juil 2023
Hi Milos,
The FAQ includes a utility that will try to adjust the breakpoints used in your table.
Please, see if that helps.
Andy
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