Monday, June 18, 2012
EE2028 POWER QUALITY Syllabus | EEE |Anna University | Regulation 2008 | (Applicable to the students admitted from the Academic year 2008 – 2009 onwards)
EE2028 POWER QUALITY L T P C
3 0 0 3
AIM:
To study the various issues affecting power quality,
their production, monitoring and suppression.
OBJECTIVES:
i. To study the production of voltages sags, overvoltages
and harmonics and methods
of control.
ii. To study various methods of power quality monitoring.
UNIT I INTRODUCTION TO POWER QUALITY 9
Terms and definitions: Overloading - under voltage - over
voltage. Concepts of transients - short
duration variations such as interruption - long duration
variation such as sustained interruption. Sags
and swells - voltage sag - voltage swell - voltage
imbalance - voltage fluctuation - power frequency
variations. International standards of power quality.
Computer Business Equipment Manufacturers
Associations (CBEMA) curve.
UNIT II VOLTAGE SAGS AND INTERRUPTIONS
9
Sources of sags and interruptions - estimating voltage
sag performance. Thevenin’s equivalent
source - analysis and calculation of various faulted
condition. Voltage sag due to induction motor
starting. Estimation of the sag severity - mitigation of
voltage sags, active series compensators.
Static transfer switches and fast transfer switches.
UNIT III OVERVOLTAGES 9
Sources of over voltages - Capacitor switching –
lightning - ferro resonance. Mitigation of voltage
swells - surge arresters - low pass filters - power
conditioners. Lightning protection – shielding - line
arresters - protection of transformers and cables. An
introduction to computer analysis tools for
transients, PSCAD and EMTP.
UNIT IV HARMONICS 9
Harmonic sources from commercial and industrial loads,
locating harmonic sources. Power system
response characteristics - Harmonics Vs transients.
Effect of harmonics - harmonic distortion -
voltage and current distortion - harmonic indices - inter
harmonics – resonance. Harmonic distortion
evaluation - devices for controlling harmonic distortion
- passive and active filters. IEEE and IEC
standards.
101
UNIT V POWER QUALITY MONITORING 9
Monitoring considerations - monitoring and diagnostic
techniques for various power quality problems
- modeling of power quality (harmonics and voltage sag)
problems by mathematical simulation tools -
power line disturbance analyzer –
quality measurement equipment - harmonic / spectrum
analyzer - flicker meters - disturbance
analyzer. Applications of expert systems for power
quality monitoring.
TOTAL : 45 PERIODS
TEXT BOOK:
1. Roger. C. Dugan, Mark. F. McGranagham, Surya Santoso,
H.Wayne Beaty, ‘Electrical Power
Systems Quality’ McGraw Hill,2003.(For Chapters1,2,3, 4
and 5)
REFERENCES:
1. G.T. Heydt, 'Electric Power Quality', 2nd Edition. (West Lafayette, IN, Stars in
a
Circle Publications, 1994). (For Chapter 1, 2, 3 and 5)
2. M.H.J Bollen, ‘Understanding Power Quality Problems:
Voltage Sags and Interruptions’, (New
York: IEEE Press, 1999). (For Chapters 1, 2, 3 and 5)
3. J. Arrillaga, N.R. Watson, S. Chen, 'Power System
Quality Assessment', (New York: Wiley,
1999). (For Chapters 1, 2, 3, 4 and 5)
4. PSCAD User
Manual
By Vinoth
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