Category: SYNCHRONOUS MOTOR AND BRUSHLESS DC MOTOR DRIVES

Self Controlled Synchronous Motor Drive Employing a Cycloconverter

Self Controlled Synchronous Motor Drive Employing a Cycloconverter: Self Controlled Synchronous Motor Drive Employing a Cycloconverter as shown in Fig. 7.13. Firing pulses are generated either by comparison of the motor terminal voltages or by rotor position senors as in the case of drive. Cycloconverter control has the advantages of smooth low speed operation, four-quadrant […]

Self Controlled Synchronous Motor Drive

Self Controlled Synchronous Motor Drive: A Self Controlled Synchronous Motor Drive employing a load commutated thyristor inverter is shown in Fig. 7.10. In large power drives wound field synchronous motor is used. Medium power drives also employ permanent magnet synchronous motor. The drive employs two converters, which are termed here as source side converter and […]

Variable Frequency Control of Multiple Synchronous Motors

Variable Frequency Control of Multiple Synchronous Motors: A drive operating in true Variable Frequency Control of Multiple Synchronous Motors is shown in Fig. 7.9. Frequency command f* is applied to a voltage source inverter through a delay circuit so that rotor speed is able to track the changes in frequency. A flux control block changes […]

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