Description
History of HVDC Technology
1. Electromechanical (Thury) Systems
2. Mercury Arc Valves
3. Thyristor Valves
4. Voltage Source Converters (VSC)
5. Capacitor-Commutated Converters (CCC)
Electromechanical (Thury) Systems
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First power transmission between MiesbachMunich in 1882, 1.5 kW
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Thury System: series-connected motorgenerator sets used. (Swiss engineer Rene
Thury 1860 –1938: the king of HVDC)
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Moutiers-Lyon system for 8600 kW of hydroelectric power a distance of 124 miles,
including 6 miles of underground cable.
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The system used 8 series-connected generators with dual commutators, 1906-
1936