DocumentCode :
3494189
Title :
Modelling of low inductive busbars for medium voltage three-level NPC inverter
Author :
Popova, L. ; Musikka, T. ; Juntunen, R. ; Lohtander, M. ; Silventoinen, P. ; Pyrhönen, O. ; Pyrhönen, J.
Author_Institution :
Dept. of Electr. Eng., Lappeenranta Univ. of Technol., Lappeenranta, Finland
fYear :
2012
fDate :
16-18 July 2012
Firstpage :
1
Lastpage :
7
Abstract :
Design of low inductive busbars for medium voltage Neutral Point Clamped (NPC) inverter is studied. In a hard-switched inverter the stray inductance causes various problems, such as over voltages, current unbalance, and possible resonance with DC-link capacitors. These problems lead to improper operation of the inverter and an increased level of electromagnetic interference (EMI). The laminated busbars are known to be a good solution for minimizing the stray inductance. It is important to estimate and minimize the stray inductance of the busbars in an early design stage. FLUX3D is used to compare three physical layouts and analyze the influence of the placement of the main circuit components on the inductance value.
Keywords :
busbars; electromagnetic interference; invertors; DC-link capacitors; EMI; FLUX3D; electromagnetic interference; hard-switched inverter; laminated busbars; low inductive busbar modelling; medium voltage neutral point clamped inverter; medium voltage three-level NPC inverter; stray inductance; Capacitors; Commutation; Finite element methods; Inductance; Inverters; Layout; Medium voltage; Converters; electromagnetic interference; electromagnetic modelling; finite element methods; inductance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics and Machines in Wind Applications (PEMWA), 2012 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
978-1-4673-1128-1
Type :
conf
DOI :
10.1109/PEMWA.2012.6316369
Filename :
6316369
Link To Document :
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