Using a look-up table for decoupling waveforms

Question

Milos Bozovic 2023-7-3

0
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https://ww2.mathworks.cn/matlabcentral/answers/1991198-using-a-look-up-table-for-decoupling-waveforms

回答： Andy Bartlett 2023-7-5

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:

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.