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2 2013

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Vector Control of Faulty Three-Phase Induction Motor with an Adaptive Sliding Mode Control

Jannati M., Monadi A., Idris N. R., Aziz M. J. A., Faudzi A. A. M.

Przegląd Elektrotechniczny

2013

R. 89, nr 12

116-120

This paper presents an adaptive sliding mode control with an adaptive switching gain in order to vector control of Three-Phase Induction Motor (TPIM) based on Rotor Flux Oriented Control (RFOC) method under open-phase fault (faulty TPIM). This method can be utilized to control of IMs in some critical applications which require fault-tolerant scheme. To confirm the good performance of the proposed method, simulation results have been presented. The Simulation results confirm a completely satisfactory effectiveness of the proposed method.

W artykule zaprezentowano adaptacyjne sterowanie ślizgowe trójfazowego silnika indukcyjnego bazujące na metodzie RFOC w przypadku gdy jedna z faz wykazuje błąd.

Rotor flux oriented control of induction machine based drives with compensation for the variation of all machine parameters

Extremiana G., Abad G., Arza J., Chivite-Zabalza J., Torre I.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2013

Vol. 61, nr 2

309--324

The performance of rotor flux oriented induction motor drives, widely used these days, relies on the accurate knowledge of key machine parameters. In most industrial drives, the rotor resistance, subject to temperature variations, is estimated on-line due to its significant influence on the control behaviour. However, the rest of the model parameters are also subject to slow variations, determined mainly by the operating point of the machine, compromising the dynamic performance and the accuracy of the torque estimation. This paper presents an improved rotor-resistance on-line estimation algorithm that contemplates the iron losses of the electrical machine, the iron saturation curve and the mechanical losses. In addition, the control also compensates the rest of the key machine parameters such as the leakage and magnetizing inductances and the iron losses. These parameters are measured by an off-line estimation procedure and stored in look up-tables used by the control. The paper begins by presenting the machine model and the proposed rotor flux oriented control strategy. Subsequently, the off-line parameter measurement procedure is described. Finally, the algorithm is extensively evaluated and validated experimentally on a 15 kW test bench.