Electrical Drives (ED)
EX-801-
Unit 1Basic Concepts of Electric Drives
Elements of drive systems · Requirement of electric drives · Rating \& selection of drives · Groups and individual drives · Constant power and constant torque drives · Motor mechanism dynamics · Review of characteristics of AC \& DC motors · Load characteristic · Load‑drive speed‑torque characteristics · Quadrant speed‑torque characteristics · Mechanical systems stability of electric drives · Referred moment of inertia and torque of motor‑load combination · Load equalization
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Unit 2DC Drives
Starting \& braking of conventional drives · Phase‑controlled drives · Chopper‑controlled drives · Transient and steady‑state analysis · Energy recovery systems
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Unit 3Induction Motor Drives
Conventional method of starting, braking and speed control for induction motors · PWM control · Voltage‑Source Inverter (VSI) fed induction motor drives · Current‑Source Inverter (CSI) fed induction motor drives · Cyclo‑converter fed drive · Vector‑control drives · Slip‑controlled induction motor drives · Review of conventional methods and converter‑controlled Crammers \& Scherbius drives · Rotor‑impedance control
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Unit 4Synchronous Motor Drives
VSI fed synchronous motor drives · CSI fed synchronous motor drives · Self‑controlled brushless and commutatorless DC motor drives · Self‑controlled brushless and commutatorless AC motor drives
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Unit 5Special Drives
Fundamentals of switched‑reluctance motors · Stepper motors · Permanent‑magnet motor fundamentals · Introduction to vector control for permanent‑magnet motors · Digital control of drives · Case studies: electric traction, steel & cement plants, textile & paper mills, machine‑tool drive and CNC, electric cars