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The purpose of this paper is to present the speed-sensorless weighted vector control method of parallel-connected dual induction motors fed by a single inverter. In this paper, the flux linkage of dual induction motors is reoriented, and then the control expressions of weighted rotor flux linkage and weighted torque of dual motors are derived. The weight value of vector control for dual induction...
The performance of the induction machine driving system with indirect vector control can easily be influenced by the effects of parameter mismatch and eddy current, which result that the magnetizing component of stator current can't align with the rotor flux vector, especially in the range of high speed and flux weakening. In order to achieve accurate rotor flux orientation, a novel control strategy...
In this paper, the torque ripples in low speed range of conventional direct torque control are analysed, and the strategy of predictive control of torque and/or stator flux is presented. A new vector selection table based on area voltage is proposed to control the torque and flux. In this case, two predictive control schemes are presented to reduce torque ripples and improve the steady and dynamic...
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