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In this paper some different control strategies, suitable for open-phase fault operation of seven-phase current regulated induction motor drives, are presented. These strategies, which are valid in steady-state as well as in transient operating conditions, are compared in terms of stator and rotor copper losses and torque pulsations. The comparison is carried out by means of an opportune mathematical...
The control scheme of a speed-sensorless induction motor drive fed by a matrix converter is presented. The proposed scheme allows the motor to exploit the maximum torque capability at any speed, shows a moderate dependence on the motor parameters, and a fast torque response, even in the field- weakening speed range. The behaviour of the matrix converter is assessed by means of experimental results.
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