Dear user
I have 1.2 MWatt DC motor supplied by three phase thyristor full bridge rectifier. I want to know effect of voltage harmonic of AC side on temperature of collector.
Best Regards
Harmonics on the AC side will start with the 5th harmonic. That is very close to the natural 6th harmonic that is a natural result of the six-pulse rectification and will be a very miniscule in relation to the latter.
A couple of examples are given below. AC harmonics does not add much heat to what you already have.