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The aim of this research work is to evaluate and compare the performances of the Direct Torque Control (DTC) and Predictive Torque Control (PTC) algorithms both applied to a three phase induction motor drive fed by three level reduced switch VSI. The comparison has been made based on the torque and current ripples, settling time, and response times during speed and load disturbances and Total Harmonic...
This paper proposes an algorithm for predictive torque control (PTC) of an induction motor drive that is simple to implement and also minimizes switching loss by efficient zero voltage vector placement. An algorithm for selecting the nearest zero vector is presented which can minimize switching losses. The proposed algorithm is analyzed in terms of torque ripple, current THD, dynamic performance for...
This paper presents an analysis, design and control of a solar photovoltaic (SPV) array powered water pumping system driven by a synchronous reluctance motor (SyRM). In this proposed system, a boost converter is used for maximum utilization of solar PV energy through an incremental conductance maximum power point tracking (INC-MPPT) algorithm. Among several DC-DC converters, a boost converter is selected...
This paper presents a Scott-transformer-based power factor correction (PFC) rectifier for a three-level neutral-point-clamped (NPC) inverter-fed induction motor drive (IMD) for enhanced power quality at ac mains. Here, the Scott-transformer-based PFC rectifier is digitally controlled by a current feedforward control. The torque component of the stator current is added to the output of the dc-bus voltage...
This paper presents a Scott-transformer based Power Factor Correction (PFC) rectifier for a three-level Neutral-Point-Clamped (NPC) inverter fed Induction Motor Drive (HMD) for enhanced power quality at AC mains. Here, the Scott-transformer based PFC rectifier is digitally controlled by a current feed-forward control. The torque component of the stator current is added to the output of the DC bus...
This research article deals with the two closed loop speed control techniques namely Vector Control and Direct Torque Control for Permanent Magnet Synchronous Motor Drive. These two control techniques are critically evaluated for the performance comparison in terms of starting response, steady state response and transient condition. The simulation models of the two controllers are developed in Matlab/Simulink...
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