Syllabus
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.
VOLTAGESAGS, INTERRUPTIONS AND OVERVOLTAGES
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. 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.
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.
REACTIVE POWER COMPENSATION
Reactive power flow control in Power Systems – Control of dynamic power unbalances in Power System – Power flow control – Constraints of maximum transmission line loading – Benefits of FACTS Transmission line compensation – Uncompensated line – Shunt compensation – Series compensation – Phase angle control – Reactive power compensation – Shunt and Series compensation principles – Reactive compensation at transmission and distribution level-Power Factor Correction methods .
STATIC SHUNT AND SERIES COMPENSATORS
Shunt Compensator: SVC and STATCOM – Operation and control of TSC, TCR and STATCOM – Compensator control – Comparison between SVC and STATCOM.
Series Compensator: TSSC, SSSC -Static voltage and phase angle regulators – TCVR and TCPAR Operation and Control –Applications – Static series compensation – GCSC,TSSC, TCSC and Static synchronous series compensators and their Control – SSR and its damping.
Books
J.Arrillaga, N.R.Watson, S.Chen, 'Power System Quality Assessment', Wiley, 2011.
G. T.Heydt, “Power Quality”, McGraw-Hill Professional, 2007.
M.H.J Bollen, ‘Understanding Power Quality Problems: Voltage Sags and Interruptions’, (New York: IEEE Press, 1999)
G.J.Wakileh,“Power Systems Harmonics–Fundamentals, Analysis and Filter Design,” Springer 2007.
S.Vedam, M.S.Sarma, “Power Quality–VAR Compensation in Power Systems,” CRC Press 2013.
For Download of More Books Click here