Dc Transmission Based on Voltage Source Converters
نویسندگان
چکیده
Voltage Source Converters (VSC) have for the first time been used for HVDC transmission in a real network. Experience from the design and commissioning of the transmission shows that the technology has now reached the stage where it is possible to build high voltage converters utilising Insulated Gate Bipolar Transistors (IGBTs). Operation and system tests have proved that the properties that have been discussed for many years regarding VSCs for HVDC are a reality now. They include independent control of active and reactive power, operation against isolated a.c. networks with no generation of their own, very limited need of filters and no need of transformers for the conversion process.
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