Master of Engineering in Electrical Engineering (Electrical Machines & Drives)

Compulsory Courses

Solid-state power devices, single phase & three phase controlled rectifiers. Driving the transistor and its protection, Driving the Thyristor and its protection. Power factor improvement of thyristor controlled load, DC-to-DC Switch Mode Converters. Switching DC Power Supplies. Power conditioners and Un-interruptible Power Supplies. Thyristor Forced Commutated DC Choppers.

Single phase and three phase AC voltage controllers. Single phase and three phase Cycloconverters. Thyristor commutation techniques. Single phase and three phase inverters. Modulation techniques. DC link and hidden link inverters. Resonant pulse converters. Zero voltage and zero current converters.

Variable speed drive systems, Separately excited and series dc motor single phase drives, Power factor improvement. Three phase drives. Semi converter, Full converter series connected and dual converter drives. Reversible drives. DC Chopper Drives. Dynamic and regenerative braking. Closed loop control. Phase Locked Loop control and Microprocessor control.

Review of three phase induction motor speed control, Speed control by Slip-Energy Recovery schemes, Induction motor with voltage source inverters, Induction motor with current source inverters, Synchronous motor drives. Stepper motor drives. Cyclo-converter controlled AC drives. Brushless synchronous machines.

Design of transformers, DC machines, Single phase and three phase induction motors, Design of synchronous machines.

Elective Courses

Linear Induction motors, linear synchronous motors, Reluctance motors, Numerically Controlled stepper motors.

Matrix equation, Matrix Analysis of transformer, general unified theory of rotating machines, Application of the general theory in the analysis of DC machines, 1-phase and 3-phase induction motors.

Parameters of machines to be controlled. Types of Controls, Powers Switches, Temperature Control of Power Switches, Drivers, Voltage Regulators, Passive devices used in machine control.

Protection & Measurement Devices, Transformer and Reactor Protection, Transformer Faults, Magnetising Inrush, Protection Against incipient Faults. Protection Against Active Faults, Regulating Transformer Protection, Shunt Rector Protection. Generator Protection, Type, Stator & Rotor Protection, Loss of Excitation Protection, Other Protection. Motor Protection, Motor Problems, Stator & Rotor Protection, Other Protection.

Properties of feedback control systems, Mathematical models of basic components, State-variable models of feedback systems, time-domain analysis, stability, transform analysis, frequency domain techniques, root-locus, design of single input-output systems, simple compensation techniques.

Examples of Discrete Data and Digital Control Systems, Signal Conversion and Processing, Sampling theorem, z-transform and inverse z-transform. The state-variable approach. Stability of Digital control system. Digital Simulation and digital redesign

Distribution System Planning and Automation, Load Characteristics, Application of Distribution transformation, Design of Sub-transmission lines and distribution substations, Design considerations of primary system. Design considerations of secondary systems, Voltage-Drop and Power loss calculations

Application of capacitors to distribution system, Distribution system voltage regulation. Distribution system protection, Distribution system reliability.

Intense and rigorous treatment of the constants of HV and EHV lines and cables, Mathematical modeling, Insulation coordination and their effects on insulation during short circuits, Travelling waves, Optimum loading of facilities, effects of line transients on insulation. HV DC transmission, Type of DC links, technical and economic advantages of DC transmission, Incorporation of HV DC into AC systems, Converter station equipment, skin effects.