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EE6005 Power Quality Sem Viii

The document outlines the units of the course EE6005 Power Quality. Unit I introduces power quality terms and concepts such as overloading, under voltage, transients, sags, swells, fluctuations and standards. Unit II discusses voltage sags and interruptions, their sources, analysis and mitigation techniques. Unit III covers overvoltages caused by capacitor switching, lightning, ferroresonance and their mitigation. Unit IV explains harmonics sources, effects, standards, and controlling distortion. Unit V describes power quality monitoring considerations, techniques, modeling tools, and expert systems applications. The textbooks and references for the course are also listed.

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333 views2 pages

EE6005 Power Quality Sem Viii

The document outlines the units of the course EE6005 Power Quality. Unit I introduces power quality terms and concepts such as overloading, under voltage, transients, sags, swells, fluctuations and standards. Unit II discusses voltage sags and interruptions, their sources, analysis and mitigation techniques. Unit III covers overvoltages caused by capacitor switching, lightning, ferroresonance and their mitigation. Unit IV explains harmonics sources, effects, standards, and controlling distortion. Unit V describes power quality monitoring considerations, techniques, modeling tools, and expert systems applications. The textbooks and references for the course are also listed.

Uploaded by

pugazhendira
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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EE6005 POWER QUALITY SEM VIII

UNIT I INTRODUCTION TO POWER QUALITY


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


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


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
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.

UNIT V POWER QUALITY MONITORING


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.

TEXT BOOKS:
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).
2. Eswald.F.Fudis and M.A.S.Masoum, “Power Quality in Power System and Electrical
Machines,” Elseviar Academic Press, 2013.
3. J. Arrillaga, N.R. Watson, S. Chen, 'Power System Quality Assessment', Wiley, 2011.
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. G.J.Wakileh, “Power Systems Harmonics – Fundamentals, Analysis and Filter Design,”
Springer 2007.
4 . E.Aeha and M.Madrigal, “Power System Harmonics, Computer Modelling and Analysis,
“ Wiley India, 2012.
5 . R.S.Vedam, M.S.Sarma, “Power Quality – VAR Compensation in Power Systems,”
CRC Press 2013.
6. C. Sankaran, ‘Power Quality’, CRC press, Taylor & Francis group, 2002

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