Course Syllabus
Introduction to Electrical Drives
-Introduction to electrical drives, advantages of Electrical Drives, parts of Electrical Drives, choice of Electrical Drives, status of DC and AC drives
-Dynamics of Electrical Drives; Fundamental torque equations, speed torque conventions and multiquadrant operation, equivalent values of drive parameters; loads with rotational motion, loads with translational motion, measurement of moment inertia; components of load torque, steady state stability, load equalization.
Control of Electrical Drives
- Modes of operation.
-Speed control and drive classifications.
-Closed- loop control of drives; current limit control, closed- loop torque control, closed loop speed control, closed loop speed control of multi-motor drives, speed sensing, current sensing, phase- locked- loop control, closed loop position control.
-Converters for serving electric motors; phase controlled line commutated converters, DC choppers, inverters, cycloconverters, AC voltage controller.
DC motor drives
-Introduction to dc motor and their performances; separately excited motors, shunt motors, series motor, compound motor.
-Starting of DC motor
-Braking of DC motor; regenerative braking, dynamic braking, plugging
-Speed control of shunt and series dc motor; Armature voltage control, field flux control, armature resistance control, solid state DC drives; Thyristor bridge rectifier circuit, chopper circuits, bridge rectifier- fed drive.
-DC Drives for specific applications.
Induction motor drives
-Introduction to three phase induction motors; analysis and performances.
-Starting of induction motor; star- delta starter, auto- transformer starter, soft- starter.
-Braking of induction motor; regenerative braking, plugging or reverse voltage braking, dynamic (or rheostatic) braking
-Speed control of induction motor; pole changing method, stator voltage control, supply frequency control, rotor resistance control, slip power recovery.
-AC Drives for specific applications.
-Introduction to electrical drives, advantages of Electrical Drives, parts of Electrical Drives, choice of Electrical Drives, status of DC and AC drives
-Dynamics of Electrical Drives; Fundamental torque equations, speed torque conventions and multiquadrant operation, equivalent values of drive parameters; loads with rotational motion, loads with translational motion, measurement of moment inertia; components of load torque, steady state stability, load equalization.
Control of Electrical Drives
- Modes of operation.
-Speed control and drive classifications.
-Closed- loop control of drives; current limit control, closed- loop torque control, closed loop speed control, closed loop speed control of multi-motor drives, speed sensing, current sensing, phase- locked- loop control, closed loop position control.
-Converters for serving electric motors; phase controlled line commutated converters, DC choppers, inverters, cycloconverters, AC voltage controller.
DC motor drives
-Introduction to dc motor and their performances; separately excited motors, shunt motors, series motor, compound motor.
-Starting of DC motor
-Braking of DC motor; regenerative braking, dynamic braking, plugging
-Speed control of shunt and series dc motor; Armature voltage control, field flux control, armature resistance control, solid state DC drives; Thyristor bridge rectifier circuit, chopper circuits, bridge rectifier- fed drive.
-DC Drives for specific applications.
Induction motor drives
-Introduction to three phase induction motors; analysis and performances.
-Starting of induction motor; star- delta starter, auto- transformer starter, soft- starter.
-Braking of induction motor; regenerative braking, plugging or reverse voltage braking, dynamic (or rheostatic) braking
-Speed control of induction motor; pole changing method, stator voltage control, supply frequency control, rotor resistance control, slip power recovery.
-AC Drives for specific applications.
Frequently Asked Questions
Q1 : What is the aim of this course?
A1 : The course aims to give a broad overview of Electrical Drive Systems.
Q2 : What courses need to be taken before studying this course?
A2 : It is assumed that the students have prior exposure to Electrical Machines and Power Electronics.
Q3 : What is the learning outcome of this course?
A3 : The student shall be able to: 1) analyse electrical motor drives and their sub systems (converters, rotating machines, and loads) 2) choose a suitable rotating machine for an electrical motor drive 3) choose a suitable power electronic converter structure for an electrical motor drive 4) choose a suitable control structure, measurement method and calculate control parameters for an electrical motor drive
A1 : The course aims to give a broad overview of Electrical Drive Systems.
Q2 : What courses need to be taken before studying this course?
A2 : It is assumed that the students have prior exposure to Electrical Machines and Power Electronics.
Q3 : What is the learning outcome of this course?
A3 : The student shall be able to: 1) analyse electrical motor drives and their sub systems (converters, rotating machines, and loads) 2) choose a suitable rotating machine for an electrical motor drive 3) choose a suitable power electronic converter structure for an electrical motor drive 4) choose a suitable control structure, measurement method and calculate control parameters for an electrical motor drive