Analytic Model of Four-switch Inverter-fed Driving System for Wye or Delta-connected Motor with Current Ripple Reduction Scheme

Embedded Four Switch Three Phase Inverter Fed Induction Motor Drive

The objective of the paper is to develop a microcontroller controlled four switch three phase inverter (FSTPI) to drive three phase induction motor with minimum hardware. This inverter uses four switches instead of conventional six switches, it has lesser switching losses, lower electromagnetic interference (EMI), less complexity of control algorithms, robust control and reduced circuit complex...

A Novel Method for Commutation Torque Ripple Reduction of Four-Switch, Three-Phase Brushless DC Motor Drive

This paper presents an original study on the generated torque ripples of phase commutation in the Four-Switch, Three-Phase Inverter (FSTPI) Brushless DC (BLDC) motor drive which is suitable for low cost applications. Analytic values of torque ripple and commutation duration are obtained for different operation conditions. Moreover, limitation on the speed range operation caused from splitti...

Fault Tolerant Control of Four Switch Three Phase Inverter Fed Induction Motor Drive System

In this paper a new switching technique for Direct Torque Control (DTC) fault tolerant induction motor drive is presented, if one inverter leg is completely lost due to such abnormal condition, this system modifies the switching table of DTC system using the available stator voltage vectors in two phase mode with Four Switch Three Phase Inverter (FSTPI) topology to track the stator flux referen...

Fuzzy Logic Control Based Direct Torque Control Scheme for a Four Switch Inverter-fed Induction Motor Drive

Direct Torque Control of induction motor fed drives has become popular and widely used in industries due to fast and good torque response. Induction motors (IM) are simple in construction and are less sensitive to the motor parameters compared to other vector control methods. A new torque and flux control scheme called the direct torque control (DTC) has been introduced for induction motors. In...

Reduction of Current Ripple and Acoustic Noise in Dual-inverter Pole-changing Induction Motor Drives