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Three Phase Drives

Three Phase Drives: Single phase drives discussed in the previous section are employed for low and medium powers. When the power of the drive is very large the three-phase converter…

Single Phase Separately Excited DC Motor Drives

Single Phase Separately Excited DC Motor Drives: The circuit arrangement of a Single Phase Separately Excited DC Motor Drives Drives fed from a single phase controlled converter is shown in…

Commutation in DC Motor

Commutation in DC Motor: Commutation and commutator wear and tear of the dc motor must be given due consideration when the motor operates on solid state converters. Spark-less commutation must…

Performance of DC Motors Operating on Phase Controlled Converters

Performance of DC Motors Operating on Phase Controlled Converters: The nature of the output voltage and output current of a phase controlled converters impains the performance of the dc motor…

Voltage Source Inverter Fed Synchronous Motor Drive

Voltage Source Inverter Fed Synchronous Motor Drive: An inverter fed synchronous motor has been very popular as a converter motor in which the synchronous motor is fed from a CSI…

Synchronous Speed on Variable Frequency Supply

Synchronous Speed on Variable Frequency Supply: As has already been discussed, the speed of a synchronous motor can be varied by supply frequency variation similar to an induction motor. The…

Synchronous Motor Drives: Variable frequency drives employing synchronous motor are receiving considerable interest, and are even becoming competitors to both induction motors and dc motors. These are popular as drives…

PWM Inverter Fed Induction Motor Drive

PWM Inverter Fed Induction Motor Drive: Voltage control in the square wave inverter has been external to the inverter, by means of a phase controlled rectifier on the line side.…