Title :
A novel harmonic elimination method for a three-phase diode rectifier with controlled DC link current
Author_Institution :
R&D Centre, Danfoss Power Electron. A/S, Gråsten, Denmark
Abstract :
Conventional diode rectifiers generate current harmonics which affects quality of power systems. According to the IEC61000 standards, different harmonic limits have been defined for broad range of products in which they have to fulfill the regulations. A cost effective solution to reduce current harmonic emission in low power motor drive systems (below 10 kW) is to use passive filters such as DC or AC chokes; but they are bulky and expensive filters and also input current Total Harmonic Distortion (THD) value depends on load profile. This paper presents an active harmonic mitigation technique with a novel current modulation method for three phase motor drive systems. Analysis and simulations have been carried out to verify the proposed method.
Keywords :
IEC standards; electric current control; harmonic distortion; inductors; motor drives; passive filters; power harmonic filters; power supply quality; power system harmonics; rectifiers; AC chokes; DC chokes; IEC61000 standards; THD; active harmonic mitigation; controlled DC link current; current harmonic emission; current modulation; harmonic elimination; low power motor drive systems; passive filters; power system quality; three phase motor drive systems; three-phase diode rectifier; total harmonic distortion; Harmonic analysis; Inductors; Motor drives; Power electronics; Power harmonic filters; Rectifiers; current control; electronic inductor; harmonics; mitigation techniques; modulation; three phase rectifier;
Conference_Titel :
Power Electronics and Motion Control Conference and Exposition (PEMC), 2014 16th International
Conference_Location :
Antalya
DOI :
10.1109/EPEPEMC.2014.6980636
