CONTROL OF DC MOTORS BY 1-Ph CONTROLLED CONVERTERS: Introduction to Thyristor controlled Drives, Single Phase Semi and Full controlled converters connected to D.C separately excited and D.C series motors, continuous operation, output voltage and current waveforms. Speed and Torque expressions, Speed – Torque Characteristics.
CONTROL OF DC MOTORS BY 3-Ph CONTROLLED CONVERTERS: Three phase semi and fully controlled converters connected to D.C separately excited and D.C series motors, output voltage and current waveforms. Speed and Torque expressions, Speed –Torque characteristics, Numerical problems.
FOUR QUADRANT OPERATIONS OF DC DRIVES: Electric Braking – Plugging, Dynamic and Regenerative Braking operations, Numerical problems.
CONTROL OF DC MOTORS BY CHOPPERS: Single quadrant, Two-quadrant and four-quadrant chopper fed separately excited dc motor. Continuous operation, Output voltage and current waveforms, Speed torque expressions, speed torque characteristics. Closed loop operation of DC motor (Block Diagram Only) Numerical problems.
CONTROL OF INDUCTION MOTORS: Variable voltage characteristics, Variable frequency characteristics, V/F Control of Induction motor Voltage source Inverter and Current source Inverter control of induction motor. Comparison of VSI and CSI operations, Speed torque characteristics, numerical on induction motor drives, closed loop operation of induction motor drives (Block Diagram Only) Numerical problems.
PWM CONTROL OF INDUCTION MOTOR DRIVES: Introduction to PWM, Sinusoidal PWM (SPWM) control of Induction Motor, Space vector modulation (SVPWM) control of Induction Motor. CONTROL OF SYNCHRONOUS MOTOR DRIVES: Control characteristics of Synchronous motor drive, VSI fed, and CSI fed Synchronous Motor, Closed Loop operation of synchronous motor drives (Block Diagram Only).