A soft switched current controlled converter for induction machine driving

The paper proposes a current controlled inverter operating in the ZVS mode for an induction machine drive. Operation with no voltage stress in the DC link bus is achieved. Together with the soft switching operation, a fixed frequency bang bang current control technique is also implemented, allowing...

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Bibliographic Details
Main Authors: Andrade, D.A., Finzi Neto, R.M., Freitas, L.C., Vieira, J.B. Jr, Farias, V.J.
Format: Conference Proceeding
Language:English
Subjects:
Current control
Feeds
Frequency
Induction machines
Inverters
Steady-state
Stress
Switching converters
Torque
Zero voltage switching
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Description
Summary:The paper proposes a current controlled inverter operating in the ZVS mode for an induction machine drive. Operation with no voltage stress in the DC link bus is achieved. Together with the soft switching operation, a fixed frequency bang bang current control technique is also implemented, allowing for an accurate shaping of sinusoidal currents to feed the motor. As a result, a ripple free torque profile in steady-state operation is reached. With soft switching, it is possible to operate conventional IGBTs at 40 kHz. A detailed analysis of the circuit operation is presented. The feasibility of the proposed scheme is experimentally verified on a prototype.
ISSN:0275-9306
2377-6617
DOI:10.1109/PESC.1999.789052