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EE2036 FLEXIBLE AC TRANSMISSION SYSTEMS

Anna University, Chennai Regulations 2008:
Elective BE EEE
EE2036 FLEXIBLE AC TRANSMISSION SYSTEMS 
AIM: To enhance the transmission capability of transmission system by shunt and series
compensation using static controllers.
OBJECTIVES:
i. To understand the concept of flexible AC transmission and the associated problems.
ii. To review the static devices for series and shunt control.
iii. To study the operation of controllers for enhancing the transmission capability.
UNIT I INTRODUCTION 9
The concept of flexible AC transmission - reactive power control in electrical power transmission lines -uncompensated transmission line – series and shunt compensation. Overview of FACTS devices - Static Var Compensator (SVC) – Thyristor Switched Series capacitor (TCSC) – Unified Power Flow controller (UPFC) - Integrated Power Flow Controller (IPFC).
UNIT II STATIC VAR COMPENSATOR (SVC) AND APPLICATIONS 9
Voltage control by SVC – advantages of slope in dynamic characteristics – influence of SVC on system voltage. Applications - enhancement of transient stability – steady state power
transfer – enhancement of power system damping – prevention of voltage instability.

 UNIT III THYRISTOR CONTROLLED SERIES CAPACITOR(TCSC)AND APPLICATIONS 9
Operation of the TCSC - different modes of operation – modeling of TCSC – variable reactance model – modeling for stability studies. Applications - improvement of the system stability limit – enhancement of system damping – voltage collapse prevention.

 UNIT IV EMERGING FACTS CONTROLLERS 9
Static Synchronous Compensator (STATCOM) – operating principle – V-I characteristics Unified Power Flow Controller (UPFC) – Principle of operation - modes of operation – applications – modeling of UPFC for power flow studies.

 UNIT V CO-ORDINATION OF FACTS CONTROLLERS 9
FACTs Controller interactions – SVC–SVC interaction - co-ordination of multiple controllers using linear control techniques – Quantitative treatment of control coordination.

 TOTAL : 45 PERIODS

 TEXT BOOK:

 REFERENCES:
1. A.T.John, “Flexible AC Transmission System”, Institution of Electrical and Electronic Engineers (IEEE), 1999.

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