- Title
- DTFC versus MPC for induction motor control reconfiguration after inverter faults
- Creator
- Nacusse, Matías A.; Romero, Mónica; Haimovich, Hernan; Seron, María M.
- Relation
- 2010 Conference on Control and Fault Tolerant Systems (SysTol'10). Proceedings of the 2010 Conference on Control and Fault Tolerant Systems (Nice, France 6-8 October, 2010) p. 759-764
- Publisher Link
- http://dx.doi.org/10.1109/SYSTOL.2010.5675965
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- conference paper
- Date
- 2010
- Description
- This work compares the use of direct torque and flux control (DTFC) and model predictive control (MPC) for induction motor (IM) control. These two strategies are fundamentally different in operation since (i) DTFC decides the current control action based on a switching table constructed using a simplified model of the IM, whereas (ii)MPC decides the current control action by on-line minimization of a cost function that uses the available inverter output voltages as optimization variables. Emphasis is given in this work to the reconfiguration of the control action after voltage source inverter faults. We assume that the fault can be suitably detected and isolated and that the inverter can be reconfigured after the specific fault to continue operation, albeit with a reduced set of achievable output vectors. Based on this reduced set of vectors, we propose to reconfigure the induction motor control algorithm by (i) instructing DTFC to use a reconfigured switching table or (ii) providing the reduced set of inverter vectors as the reconfigured constraint set of optimization variables for MPC. Simulation results show that MPC considerably outperforms DTFC at a modest increment of computational cost. Moreover, this increment is less pronounced under fault since the number of optimization variables is reduced.
- Subject
- fault tolerant control; direct torque and flux control; model predictive control; induction motor; inverter faults.
- Identifier
- http://hdl.handle.net/1959.13/933301
- Identifier
- uon:11593
- Identifier
- ISBN:9781424481545
- Rights
- Copyright © 2010 IEEE. Reprinted from the Proceedings of the 2010 Conference on Control and Fault Tolerant Systems, p.759-764. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Newcastle products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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