HVDC & FACTS 


Dr. Y.N.Vijaya Kumar

HOD of EEE Department 

M.Tech, PhD Qualification

19 Years of Experience


SYLLABUS COPY 

UNIT - I
BASIC CONCEPTS AND ANALYSIS OF HVDC SYSTEM: Terminal equipment of HVDC transmission systems-Types of HVDC Links- Comparison of AC & DC Transmission- Applications-Pulse number – Choice of converter configuration-Analysis of Graetz circuit with and without overlap -Analysis of a 12 pulse converter.

UNIT - II
HVDC CONVERTER CONTROL AND HARMONICS: Principles of DC link control – Converter control characteristics –Firing angle control – Current and extinction angle control – Generation of harmonics –Calculation of voltage and current harmonics-Types of filters.

UNIT - III
INTRODUCTION TO FACTS: Power flow in an AC System – Loading capability limits – Dynamic stability considerations – Importance of controllable parameters – Basic types of FACTS controllers – Benefits from FACTS controllers – Requirements and characteristics of high power devices – Voltage and current rating – Losses and speed of switching – Parameter trade–off devices.

UNIT - IV
SHUNT& SERIES COMPENSATORS: Objectives of shunt and series compensation – Mid–point voltage regulation for line segmentation – End of line voltage support to prevent voltage instability – Improvement of transient stability – Power oscillation damping-Basic operating principles of SSSC & STATCOM, Applications on transmission lines.

UNIT - V
COMBINED CONTROLLERS: Schematic and basic operating principles of Unified Power Flow Controller (UPFC) & IPFC– Application on transmission lines.