DocumentCode :
1925464
Title :
Impact of interleaving on common-mode EMI filter weight reduction of paralleled three-phase voltage-source converters
Author :
Xuning Zhang ; Boroyevich, Dushan ; Burgos, Rolando
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fYear :
2013
fDate :
15-19 Sept. 2013
Firstpage :
1669
Lastpage :
1675
Abstract :
This paper presents a detailed analysis on the impact of the interleaving angle on EMI filter weight reduction in a paralleled three-phase VSI motor drive system. The EMI noise analysis equivalent circuits are given in frequency domain and EMI filter design methods for a motor drive system are discussed. Based on the analysis, design examples are given for DC and AC common-mode (CM) EMI filters showing that minimum corner frequency in this case cannot ensure minimum EMI filter weight. In effect, the EMI filter weight is also determined by the volt-seconds on the inductor. With this consideration, the impact of interleaving is analyzed based on the equivalent circuit developed. Specifically, it is shown that interleaving can either reduce the volt-second on the inductor or help reduce the inductance needed, which has a different impact on the filter weight when the design condition is different. EMI filters are designed for both AC and DC sides as examples, showing the impact that different interleaving angles can have on filter weight reduction. Verifications are carried out both in simulation and experimentally on a 2 kW converter system.
Keywords :
electromagnetic interference; equivalent circuits; frequency-domain analysis; invertors; power filters; AC common-mode EMI filters; CM-EMI filters; DC common-mode EMI filters; EMI filter design methods; EMI noise analysis equivalent circuits; common-mode EMI filter weight reduction; frequency domain analysis; inductor; interleaving angle; minimum corner frequency; paralleled three-phase VSI motor drive system; paralleled three-phase voltage-source converters; power 2 kW; Electromagnetic interference; Equivalent circuits; Impedance; Inductance; Inductors; Noise; Power harmonic filters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2013 IEEE
Conference_Location :
Denver, CO
Type :
conf
DOI :
10.1109/ECCE.2013.6646907
Filename :
6646907
Link To Document :
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