Abstract
This paper describes the operation characteristics of using superconducting cables in dc transmission systems, focusing on dc current and cable parameters. A superconducting power transmission system need not operate at high voltage levels to reduce I2R losses. This eliminates the need for high voltage insulation and large transformers. Voltage source converter (VSC) transmission has come into use in the last decade. The VSC transmission is often used in cases where an ac system is not practical, generally due to long underground or undersea cables, and excessive losses. The combination of VSC and low-voltage dc (LVDC) superconducting transmission cables could be a good solution to minimize the losses. Issues related to the impact of superconducting cables on VSC LVDC transmission system will be presented along with computer simulation results.
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