PWM forPower Converters
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PWM forPower Converters Syllabus — Unit-wise Content
The official GTU curriculum for PWM forPower Converters (subject code 3720735) as prescribed for EE · Semester 2 divides the course into 3 units, covering 25 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 (3720735)Unit 1 Overview of PWM Converters
- Review of power electronic converters for dc-ac and ac-dc power conversion
- Purpose of pulse-width modulation
- Review of Fourier series
- fundamental and harmonic voltages
- machine model for harmonic voltages
- undesirable effects of harmonic voltages- line current distortion
- increased losses
- pulsating torque in motor drives
- control of fundamental voltage
- mitigation of harmonics and their adverse effects
Unit 2 PWM Techniques
- Pulsewidth modulation (PWM) at low switching frequency: Square wave operation of voltage source inverter
- PWM with a few switching angles per quarter cycle
- equal voltage contours
- selective harmonic elimination
- THD optimized PWM, off-line PWM Triangle-comparison based PWM : Average pole voltages
- sinusoidal modulation
- third harmonic injection
- continuous PWM, bus-clamping or discontinuous PWM Space vector based PWM : Space vector concept and transformation
- per-phase methods from a space vector perspective
- space vector based modulation
- conventional space vector PWM, bus-clamping PWM, advanced PWM, triangle comparison approach versus space vector approach to PWM
Unit 3 Performance Analysis
- Analysis of line current ripple: Synchronously revolving reference frame
- error between reference voltage and applied voltage
- integral of voltage error
- evaluation of line current Subject Code: 3720735 w.e.f
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