Power Electronics
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Power Electronics Syllabus — Unit-wise Content
The official GTU curriculum for Power Electronics (subject code 3350903) as prescribed for EC · Semester 5 divides the course into 5 units, covering 31 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (3350903)Unit 1 Power Semi Conductor Devices and Controlled Rectifier
- 1.1. Classification of Thyristor family.
- 1.2. Working, of SCR, IGBT ,GTO, MCT, DIAC and TRIAC
- 1.3. Three phase half wave, full wave or bridge rectifier and Six phase half wave rectifier.
- 1.4. Effect of transformer reactance.
- 1.5. Single phase half wave and full wave controlled rectifiers using SCR, UJT & phase shift circuits.
- 1.6. Working of pulse transformer.
- 1.7. Principle of A.C. load control.
Unit 2 SCR Protection and Commutatin g Circuits
- 2.1. Need of SCR protections : Over voltage and over current protection.
- 2.2. Snubber circuit, freewheeling diode, Thermistor, heat sink.
- 2.3. Turn off (commutation) method and types-Natural commutation, Forced commutation, Series resonance/ current commutation, Voltage commutation.
- 2.4. Auxiliary SCR for commutation.
- 2.5. External pulse commutation.
- 2.6. Specifications of SCR: Voltage, current, Power, temperature, dv/dt and di/dt Power Electronics Course Code: 3350903 GTU/ NITTTR Bhopal/14-15 Gujarat State 3 Unit Major Learning Outcomes (in cognitive domain) Topics and Sub-topics
Unit 3 Choppers
- 3.1. Function and working of choppers
- 3.2. Types of chopper circuits: A type to E-type
- 3.3. Jone’s chopper circuit
- 3.4. Morgan's chopper
Unit 4 Inverters and Cycloconver ter
- 4.1. Working principle of inverter
- 4.2. Classification of inverter- phase and 3-phase inverters, Line commutated and forced commutated inverters Series, Parallel and bridge inverter
- 4.3. Series and parallel inverter using SCR
- 4.4. PWM method and PWM inverter
- 4.5. Single pulse width, Multiple pulse width and Sinusoidal pulse width modulation
- 4.6. Operating principle of cyclo converter.
- 4.7. types of cyclo-converters : Single phase to single phase cyclo converter, Single phase to bridge cyclo converter.
Unit 5 Other Industrial Applications of Power Electronic Devices
- 5.1. With sketches, describe the use of power electronics for speed control methods of induction motor such as stator voltage control, frequency control, Power factor control method. AC drives.
- 5.2. Speed control of D.C. Motor using armature voltage control.
- 5.3. Speed control of D.C. Motor using SCR chopper circuit.
- 5.4. Speed control of D.C. drive using PLL method.
- 5.5. Speed control of universal motor.
- 5.6. Different types of speed control methods for induction motor such as stator voltage control, frequency control, Power factor control method.
- 5.7. Heating control, resistance welding, static circuit breaker and time delay circuits. Power Electronics Course Code: 3350903 GTU/ NITTTR Bhopal/14-15 Gujarat State 4
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