Title :
Motor terminal overvoltage suppression method for parallel inverters
Author :
Korhonen, Jari ; Laakkonen, T. ; Itkonen, T. ; Tyster, Juho ; Strom, Juha-P. ; Silventoinen, Pertti
Author_Institution :
Inst. of Energy Technol., Electr. Eng., Lappeenranta Univ. of Technol. (LUT), Lappeenranta, Finland
fDate :
Aug. 30 2011-Sept. 1 2011
Abstract :
Inverter-fed motor drives can be subject to transient overvoltage problems caused by switching operations. An overvoltage suppression method for parallel inverters that uses no passive filtering components and a new modulation strategy are presented in this paper. The used modulation strategy allows pulse accumulation at the motor terminals which mitigates the overvoltage. The method is verified by prototype testing.
Keywords :
invertors; motor drives; overvoltage; switching convertors; inverter-fed motor drives; modulation; motor terminal overvoltage suppression; parallel inverters; pulse accumulation; switching operations; transient overvoltage problems; Impedance; Induction motors; Inverters; Power cables; Pulse width modulation; Switches; Voltage control; EMC/EMI; Electrical drive; Voltage Source Inverters (VSI);
Conference_Titel :
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-61284-167-0
Electronic_ISBN :
978-90-75815-15-3
