The basic direct torque control algorithm gives large ripples in torque, flux and current in steady state, which results in acoustical noise and incorrect speed estimations. The conventional SVPWM algorithm gives good performance for control of induction motor drive, but it produces more acoustical noise resulting in increased total harmonics distortion. The random pulse width modulation (RPWM)...

Inverters inherently have the property of controlling output frequency but the output voltage can’t be varied. Usually to vary output voltage we have to vary supply voltage which is not always possible for this reason PWM techniques gained momentum. Basic aim of PWM technique is to control output voltage and harmonic reduction. Pulse-width modulation (PWM), or pulseduration modulation (PDM), is...

Single-stage converters based on an impedance source (IS) network merged with a multilevel inverter remain trending research topic, from both the topological and control perspectives, because of their potential in applications involving renewable energy. This paper presents new, simplified space vector pulse-width modulation (SVPWM) for three-phase three-level T-type quasi-impedance (3L-T-type ...

The main drawbacks of traditional finite set model predictive control are high computational load, large torque ripple, and variable switching frequency. A less complex deadbeat (DB) current (MPCC) with improved space vector pulse-width modulation (SVPWM) under a single-phase open-circuit fault is proposed. proposed method predicts the reference voltage in ?-? subspace by employing principle on...

This paper introduces three different algorithms to track the saliency in seven-phase PMSM obtain sensorless speed control. These are based on measuring amount of change stator currents when active vectors implemented using Near Six Vectors-Space Vector Pulse Width Modulation (NSV-SVPWM). Then, a comparison between these terms Total Harmonics Distortion (THD) associated with implementing each a...

Core loss is one of the significant factors affecting the high power density of permanent magnet machines; thus, it is necessary to consider core loss in machine design. This paper presents a novel method for calculating the core loss of permanent magnet synchronous machines under space vector pulse width modulation (SVPWM) excitation, taking magnetic saturation and cross coupling into account....