"how are harmonics generated? The signal is just "on" or "off", how are there first, third, and fifth harmonics and why do they get weaker?" // Although not a satisfactory answer, you could accept the fact that any physically realizable continuous-time signal can be represented as an infinite sum of sinusoids (that's a Fourier series). Thus, any sinusoidal signal doesn't have harmonics, or it ...
In understanding harmonic distortion, one piece of the puzzle that is missing for me is: - why does the distortion manifest at harmonic frequencies and not other frequencies. Feel free to simply point me at a textbook / reading that explains it, if that's easier! I understand that non-linear loads can create distortion.
And the whole thing is even further complicated by loads that either abuse the harmonic content (nonlinear loads like rectifiers), or literally don't know what to do with it (the harmonic energy just causes useless heating in motors, and maybe torque pulsation as well).
Filter type harmonic distortion analyzers notch the fundamental and then measure whatever is left. What you need for this is a very sharp notch filter, typically a Twin-T or Wien Bridge filter would be used. You would either need a notch filter for each fundamental frequency and switch in whichever one was needed, or a tunable filter with several ranges to be able to cover the frequency span ...
Calculate total harmonic distortion Ask Question Asked 5 years, 11 months ago Modified 2 years, 5 months ago
This is what I tried, I also saw that equation in the paper, but unfortunately, the MWO simulation showed that the pre-detuning did not work properly, the open-circuit at the 3rd harmonic was too low in frequency. N.B.: I am no class F expert as well, but I wonder whether a class F expert could verify whether my assumptions in my first post (the calculation of Z) are correct.