A sub-optimal second order sliding mode controller for current-fed induction motors

A second order sliding mode controller for current-fed induction motors is proposed in this paper. The design of the controller is based on a reduced order model of the machine, and the control variables are non-discontinuous currents, obtained integrating a discontinuous auxiliary control signal. T...

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Bibliographic Details
Main Authors: Ferrara, A., Rubagotti, M.
Format: Conference Proceeding
Language:English
Subjects:
Electric variables control
Induction generators
Induction motors
Pulse width modulation inverters
Reduced order systems
Rotors
Signal generators
Sliding mode control
Stators
Voltage control
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Description
Summary:A second order sliding mode controller for current-fed induction motors is proposed in this paper. The design of the controller is based on a reduced order model of the machine, and the control variables are non-discontinuous currents, obtained integrating a discontinuous auxiliary control signal. The phase voltages are then generated using a current regulated pulse width modulation inverter, while the rotor flux value is obtained by means of a simple observer. The convergence properties of the proposed control strategy are studied in the paper, and verified in simulation.
ISSN:0743-1619
2378-5861
DOI:10.1109/ACC.2009.5160116