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fred-BLS
Participant
Engineering Fields - Power Engineering - New Member

Join Date: Feb 2012
Location: Grenoble
Posts: 1

Harmonic 3 in Photovoltaic Application

04/23/2012 3:50 AM

Hi Expert or very confident people from the field.

I'd like to know if the DC to AC convertors used in Photovoltaic applications can generate third harmonic on the neutral of the AC network.

If yes what could be the level of that current in the neutral compare to the currents on the 3 phases ?

My application is an 250 kVA/400Vac solar farm.

Thanks and don't hesitate to give me only a prt of the answer I need the maximum details about that subject.
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Pathfinder Tags: photovoltaic ' 250kVA ' solar ' solar farm '
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RAMConsult
Guru
Engineering Fields - Power Engineering - New Member

Join Date: May 2007
Location: NYC metropolitan area.
Posts: 3230
Good Answers: 444
#1

Re: Harmonic 3 in Photovoltaic Application

04/27/2012 12:27 AM

Any time the sine wave is less than perfect harmonics are generated. The quality of your converters has a direct impact on the quality of your sine wave and therefore power. More expensive converters have more steps and filtering of the output, cheaper ones don't.

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