EE6005 - POWER QUALITY (Syllabus) 2013-regulation Anna University

EE6005 - POWER QUALITY (Syllabus) 2013-regulation Anna University

EE6005	POWER QUALITY	LPTC

3003

OBJECTIVES:

• To introduce the power quality problem
• To educate on production of voltages sags, over voltages and harmonics and methods of control.
• To study overvoltage problems
• To study the sources and effect of harmonics in power system
• To impart knowledge on 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.

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

OUTCOMES:

• Ability to understand and analyze power system operation, stability, control and protection.

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.