Motor terminal overvoltage suppression method for parallel inverters

Motor terminal overvoltage suppression method for parallel inverters

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...

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Bibliographische Detailangaben
Hauptverfasser: Korhonen, J., Laakkonen, T., Itkonen, T., Tyster, J., Strom, Juha-Pekka, Silventoinen, P.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Electrical drive
EMC/EMI
Impedance
Induction motors
Inverters
Power cables
Pulse width modulation
Switches
Voltage control
Voltage Source Inverters (VSI)
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Zusammenfassung: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.