How can we get differentiation of signal in matlab simulink, if signal is part of power electronics converter circuit with switching frequency 30Khz ?
matlab signal imagary signal which is superpostion then actual electronic convertor signal at 30khz speed of imagary charaters sustain but convertor produces harmonic,noise signal.
It would be interesting if you establish: the level of signal to noise ratio; the sampling rate; the cutoff frequency of your anti-aliasing input filter; if you have or not a digital low-pass input filter and its cutoff frequency and type of phase distortion, if any exists; the maximum delay allowed for your differentiation; and the maximum frequency of the signal that is important for the dynamics of interest. In many cases, it is necessary to filter your signal to allow differentiation. This filtering procedure may introduce a undesired delay that makes your control objective hard to achieve.
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