Department of Electrical and Electronics Engineering

HIGH VOLTAGE DIRECT CURRENT TRANSMISSION
Unit - 1
DC POWER TRANSMISSION TECHNOLOGY
Introduction - Comparison of AC and DC transmission Application of DC transmission Description of DC transmission system - Planning for HVDC transmission Moderntrends in DC transmission DC breakers Cables, VSC based HVDC.
Unit - 2
ANALYSIS OF HVDC CONVERTERS AND HVDC SYSTEM CONTROL
Pulse number, choice of converter configuration Simplified analysis of Graetz circuit- Converter bridge characteristics characteristics of a twelve pulse converterdetailedanalysis of converters.General principles of DC link control Converter control characteristics Systemcontrol hierarchy - Firing angle control Current and extinction angle control Generation of harmonics and filtering - power control Higher level controllers.
Unit - 3
MULTITERMINAL DC SYSTEMS
Introduction Potential applications of MTDC systems - Types of MTDC systems -Control and protection of MTDC systems - Study of MTDC systems.
Unit - 4
POWER FLOW ANALYSIS IN AC/DC SYSTEMS
Per unit system for DC Quantities - Modelling of DC links - Solution of DC load flow -Solution of AC-DC power flow - Case studies.
Unit - 5
SIMULATION OF HVDC SYSTEMS
Introduction System simulation: Philosophy and tools HVDC system simulation Modeling of HVDC systems for digital dynamic simulation Dynamic intractionbetween DC and AC systems.
Text Books:
1. K.R.Padiyar, , HVDC Power Transmission Systems, New Age International (P) Ltd., New Delhi, 2002. 2. J.Arrillaga, , High Voltage Direct Current Transmission, Peter Pregrinus, London, 1983. 3. P. Kundur, Power System Stability and Control, McGraw-Hill, 1993. 4. Erich Uhlmann, Power Transmission by Direct Current, BS Publications, 2004. 5. V.K.Sood,HVDC and FACTS controllers Applications of Static Converters in Power System, APRIL 2004 , Kluwer Academic Publishers.