USING SIMPLIFIED OBSERVERS IN TORQUE CONTROL OF AN INDUCTION MACHINE WITHOUT SPEED SENSOR |
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| Joaquim Monteiro, João Palma, G. D. Marques |
- Abstract:
- A method is presented for on-line estimation of internal quantities to be used in the torque control of induction machines without speed sensor. In this paper simplified observers for rotor and stator flux linkages and for the electromechanically converted torque are discussed. These observers are obtained from induction machine dynamic equations and by using currents and voltages as input variables. Numerical results with such observers for rotor and stator flux linkages are shown, for evaluation of capacities and limitations. The quality of such observers, integrated in torque and flux control schemes, is verified by experimental results obtained by digital signal processing with a fast controller on the induction motor drive system.
- Keywords:
- simplified observers, complex observers induction machine, stator and rotor flux linkages
- Download:
- IMEKO-TC4-2001-125.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 Symposium 2001
- Title:
11th IMEKO TC4 Symposium on Trends in Electrical Measurements and Instrumentation (together with 6th IMEKO TC4 Workshop on ADC Modelling and Testing)
- Place:
- Lisbon, PORTUGAL
- Time:
- 13 September 2001 - 14 September 2001