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Harmonic effect on DC motor 1

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Mr Mohsen

Electrical
Dec 23, 2016
7
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
 
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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.

DC_machine_with_good_and_bad_waveforms_1_g28kfu.png


Gunnar Englund
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Half full - Half empty? I don't mind. It's what in it that counts.
 
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