Week 1 : Concept of Power Quality: Frequency variations, voltage variations- sag and swell, waveform distortion –dc offset,harmonics, inter-harmonics, notching and noise.
Week 2 : Representation of harmonics, waveform, harmonic power,measures of harmonic distortion; Current and voltage limits of harmonic distortions: IEEE, IEC, EN, NORSO
Week 3 : Causes of Harmonics: 2-pulse, 6-pulse and 12-pulse converter configurations, input current waveforms and their harmonic spectrum; Input supply harmonics of AC regulator, integral cycle control, cycloconverter, transformer, rotating machines, ARC furnace, TV and battery charger.
Week 4 : Elimination/ Suppression of Harmonics: High power factor converter, multi-pulse converters using transformer connections
Passive Filters: Types of passive filters, single tuned and high pass filters, filter design criteria, double tuned filters, damped filters
and their design
Week 5 : PWM Inverter: Voltage sourced active filter, current sourced active filter, constant frequency control, constant tolerance band control,variable tolerance band control.
Week 6 : Active Power Filters: Compensation principle, classification of active filters by objective, system configuration, power circuit andcontrol strategy
Week 7 : Hybrid Shunt Active power filter: Principle of operation, analysis and modelling
Week 8 : Unified power quality conditioner, voltage source and current source configurations, principle of operation for sag, swell and flicker control
BOOKS AND REFERENCES
1. Derek A. P., “Power Electronic Converter Harmonics”, IEEE Press
2. Arrillaga J., Smith B. C., Watson N. R. and Wood A. R., “Power System Harmonic Analysis”, 2nd 2008 Ed., Wiley India.
3. Dugan R. C., McGranaghan M. F. and Beaty H. W., Electrical Power System Quality”, McGraw-Hill International Book Company