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Due to its simple structure, compactness, efficiency and high torque density and ease of maintenance, the permanent magnet synchronous motor (PMSM) is particularly used in high-performance drive systems. This paper presents PI control of PMSM fed by a direct AC/AC matrix converter. We aim to obtain sinusoidal waveforms of currents in the output of the considered converter with the best static and...
This paper presents the application of shunt active power filter to suppressing harmonic pollution caused by nonlinear loads. Fuzzy logic controller and hysteresis band current are respectively used to regulate the DC bus capacitor voltage and to obtain the sequences pulses of a shunt active power filter. The main objective of this study is to improve the performance of a shunt active power filter...
This paper deals with a new method called Axial Vibration Analytic Signal applied to Treatment of data for diagnosis the bearing faults of induction motor. This method consists a extracting vibration vectors forms by time-frequency representation. The calculation method based on the cloud points dispersion parameter has two main parts; the first part is the Hilbert transform of axial vibration signals...
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