1. HIGH VOLTAGE DC TRANSMISSION by Muhammad Sarmad Hafeez

3. INTRODUCTION A brief history of HVDC Where in the world it is used
Advantages
Disadvantages
Configuration
Application

4. History of HVDC DC of Thomas Edison & AC of Nicola Tesla
1889 Italy by ADFG 630 KW with 14kv over 120 km
The battery in series and then parallel but battery dilemma
1954 ASEA

5. USED in world From MOSCOW to KASHINA 10 mW to 20 mW SWEDEN to GOTLAND
1700 km Igna-Sham to Igna DAM

6. DEVICES USED
Mercury arc valve
Thyristors
IGBT’s
MOSFETS
GTO’s

7. ADVANTAGES Under sea cables (AC losses)
End to end bulk cables without intermediate taps
Un synchronized AC
Increase capacity of existing power grid

8. More ADVANTAGES Remote generating plant to Dist GRID Fewer conductors
No skin effect
Different systems different frequencies
Sync. AC from different sources

9. DISADVANTAGES Lower availability …conversion equipment
Static inverters COST
MULTI TERMINAL
Circuit breakers
Standardization

10. COST
English Channel 8GW 40 km link aid cost 750 M pounds installed and M working.
Conversion 110M
1M/km

11. Configuration Monopole earth return Bipolar Back to back
System with transmission lines
Tripolar

12. Monopole earth return

13. Bipolar

14. Back to Back

15. Applications VSC (voltage sourced converters)
RENEWABLE energy super high ways
AC network interconnections

16. ?

17. May this HELP U In the BEST WAY Possible !