Control of Electric Motors

Control of Electric Motors:

3 Phase Induction Motor Construction : A converter fed 3 Phase Induction Motor Construction has …


Braking and 4 quadrants Operation : Subsynchronous converter cascades have been used, till now, in …


Chopper Fed DC Drives : The variable voltage to the armature of a dc motor …


Chopper Resistance in the Rotor Circuit : Speed Control of Electric Motors by means of slip variation can …


Commutation in DC Motor : Commutation and commutator wear and tear of the dc motor …


Control of DC Electric Motor : A separately excited DC Electric Motor is very versatile …


Current Source Inverter Fed Induction Motor Drive : Current Source Inverter Fed Induction Motor Drive …


Current Source Inverter Fed Synchronous Motor Drive : A synchronous motor draws a stator current …


Current Source Inverter with Forced Commutation : Current Source Inverter with Forced Commutation – As …


Cycloconverter Feeding Three Phase Induction Motor Drive : Variable frequency supply to an induction motor …


Derating Factor of an Electric Motor : Typical derating factor …


Methods to Leading Power Factor : Methods to Leading Power Factor: We have seen that a phase controlled converter requires …


Performance of DC Motors Operating on Phase Controlled Converters : The nature of the output …


PWM Inverter Fed Induction Motor Drive : Voltage Control of Electric Motors in the square wave inverter has …


Reversible Drive using Armature Current Reversal : A schematic of a reversible drive using contactors …


Reversible Drive using Dual Converter : It is possible to reverse both voltage and current …


Reversible Drive using Field Reversal : A Reversible Drive using Field Reversal can be realised …


Reversible Drives using Choppers : Using two quadrant choppers a reversible drive can be achieved, …


Reversible Drives using Phase Controlled Converters : When speed Control of Electric Motors in both forward and reverse directions is required a …


Single Phase DC Series Motor Drives : In the Single Phase DC Series Motor Drives …


Single Phase Separately Excited DC Motor Drives : The circuit arrangement of a Single Phase …


Speed Control of Variable Frequency Induction Motor : Speed Control of Electric Motors of Variable Frequency Induction Motor …


Speed Control Using Slip Energy Recovery Schemes : The foregoing discussion makes it very clear …


Square Wave Voltage Source Inverter Fed Induction Motor Drive : Square Wave Voltage Source Inverter …


Starting Methods of Synchronous Motor for LCI : It has been pointed out that a …


Static Scherbius Drive : The main limitation of the Kraemer drive discussed is the operation …


Synchronous Motor Drives : Variable frequency drives employing synchronous motor are receiving consid­erable interest, and …


Synchronous Speed on Variable Frequency Supply : As has already been discussed, the speed of …


Three Phase Drives : Single phase drives discussed in the previous section are employed for …


Three Phase Synchronous Motor Fed From Cycloconverter : DC link converter is a two stage …


Torque Equation of DC Motor : When dc voltage is applied to the armature of …


Voltage Source Inverter Fed Synchronous Motor Drive : An inverter fed synchronous motor has been …