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This paper introduces a new method to track saliency in a five-phase permanent magnet synchronous motor in case of a single-phase open-circuit fault. The proposed method depends on measuring the dynamic current response of the motor line currents due to the insulated-gate bipolar transistor switching actions. In case of a single-phase open-circuit fault, a fault-tolerant control strategy to control...
This paper introduces a design of a sensorless control of a five-phase permanent magnet synchronous motor drive working at low and zero speeds with low current distortion. The rotor position is obtained through tracking the saturation saliency. The saliency position is tracked through measuring the dynamic current response of the motor line currents due to the insulated-gate bipolar transistor switching...
This paper introduces a new method to track the saliency of a PMSM motor fed by a four-leg inverter in case of a single phase open circuit fault through measuring the dynamic current response of the motor line currents due the IGBT switching actions. In the case of a single phase open circuit fault, a fault-tolerant control strategy that includes taking appropriate actions to control the two remaining...
This paper introduces a new method to track the saliency of motor fed by a multilevel inverter through measuring the dynamic current response of the motor line currents due the IGBT switching actions. The method uses only the fundamental PWM waveform (i.e there is no modification to the operation of the multilevel inverter) similar to the fundamental PWM method proposed for a 2-level inverter. Simulation...
The operation of a novel sensorless technique measuring the current derivative during the zero voltage vectors, without the need of injection of extra test signals or modification of the fundamental switching pattern, is investigated. The algorithm uses the back EMF and rotor saliency of a permanent magnet synchronous machine (PMSM). This paper focuses on extending the sensorless operation to all...
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