Converters for Electric Motors


Converters for Electric Motors:

Bridge Rectifier Circuit Diagram with freewheeling diode : A 6 pulse Bridge Rectifier Circuit Diagram with freewheeling …


Charging a Capacitor in Inverter : Charging a Capacitor in Inverter – Inverters are static power converters …


Chopper Circuit with Input Inductance : The preceding discussion of the chopper assumes ideal conditions and does …


Chopper Controlled Resistance : By interrupting the flow of current through a resistance R in a periodic …


Current Source Inverter for Feeding Three Phase Motors : In these type of Current Source Inverter, the …


Cycloconverter : A variable frequency supply for feeding a three phase motor can be obtained from a …


DC Chopper : DC Chopper are mainly dc to dc single stage conversion devices which provide a …

Electric Converter : Electric Converter – The speed of a dc motor can be varied by varying …


Features of Variable Voltage Inverters : The inverter has an impressed dc voltage. The output voltage of …


Field Oriented Control of Induction Motor : In the slip controlled drives using VSI or CSI discussed …


Four Quadrants Converters : Four Quadrants Converters – The converters described in the previous sections are suitable …


Harmonic Reduction : The output voltage waveform of an inverter is non-sinusoidal. It contains a rich harmonic …


Methods of Controlling Chopper Circuit : The basic principle of control of a Chopper Circuit is the …


Performance of Chopper in Steady State Condition : Performance of Chopper in Steady State Condition: Assuming Steady State Condition of the chopper, we have …


Phase Controlled Line Commutated Converter : In these Phase Controlled Line Commutated Converter the commutation voltage, i.e. …


Regenerative Braking : Sometimes the energy of the load may have to be fed to the supply …


Selection of Ratings of Devices of a Chopper Converter : Chopper Converter – The waveforms of currents …


Sequence control of Converters : Sequence control of Converters – We have shown that fully controlled converters …


Six pulse bridge converter : The conduction time of a thyristor in a six pulse connection can …


Six Pulse Converter with Interphase Transformer : The basic connection of a Six Pulse Converter with Interphase …


Six pulse midpoint converter : The converter transformer converts the existing three phase system to a six …


Three Phase AC Voltage Controller : To control the current and voltage of three phase loads, Three …


Three phase half controlled bridge circuit : This is obtained by a series connection of a 3 …


Three Phase Inverter : The variable frequency required for the speed control of three phase ac motors …


Three pulse converter with freewheeling diode : A Three pulse converter with freewheeling diode across the load …


Three pulse midpoint converter : These are basically three-phase converters, and are very popular because a 3-phase …


Twelve pulse converter : It is clear from the preceding discussion that increasing the pulse number to …


Two pulse bridge converter : A two pulse bridge converter is achieved as shown in Fig. 3.22 …


Two pulse converters with freewheeling diode : One quadrant converters can also be obtained by connecting a …


Two pulse half controlled bridge converter : A Two pulse half controlled bridge converter is obtained by …


Two pulse mid point converter : Two pulse mid point converter are, in general, single phase converters. …


Two Quadrant Chopper : Sometimes a chopper may be required to provide a two quadrant operation by …


Voltage Control Techniques for Inverters : It has already been mentioned that Inverter Control providing a variable …


Updated: April 30, 2020 — 1:15 pm