EE 3006 Power Quality question papers

Question papers

• November/December 2024

  Question paper code 40995

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Syllabus

1. Unit 1: Introduction9 hours

   Introduction · Characterization of Electric Power Quality: Transients · short duration and long duration voltage variations · Voltage imbalance · waveform distortion · Voltage fluctuations · Power frequency variation · Power acceptability curves · power quality problems: poor load power factor · Non-linear and unbalanced loads · DC offset in loads · Notching in load voltage · Disturbance in supply voltage · Power quality standards

2. Unit 2: Analysis of Single Phase and Three Phase System9 hours

   Single phase linear and non-linear loads · single phase sinusoidal, non-sinusoidal source · supplying linear and nonlinear loads · three phase balanced system · three phase unbalanced system · three phase unbalanced and distorted source supplying non-linear loads · concept of power factor · three phase- three wire · three phase - four wire system

3. Unit 3: Mitigation of Power System Harmonics9 hours

   Introduction · Principle of Harmonic Filters · Series-Tuned Filters · Double Band-Pass Filters · damped Filters · Detuned Filters · Active Filters · Power Converters · Harmonic Filter Design · Tuned Filter · Second-Order Damped Filter · Impedance Plots for Filter Banks · Impedance Plots for a Three-Branch 33 kV Filter

4. Unit 4: Load Compensation Using DSTATCOM9 hours

   Compensating single-phase loads · Ideal three phase shunt compensator structure · generating reference currents using instantaneous PQ theory · Instantaneous symmetrical components theory · Generating reference currents when the source is unbalanced · Realization and control of DSTATCOM · DSTATCOM in Voltage control mode

5. Unit 5: Series Compensation of Power Distribution System9 hours

   Rectifier supported DVR · DC Capacitor supported DVR · DVR Structure · Voltage Restoration · Series Active Filter · Unified Power Quality Conditioner