THE NEW CONCEPT OF THE 2G HTS SUPERCONDUCTING TRANSFORMER
Journal Title: Proceedings of Electrotechnical Institute Prace Instytutu Elektrotechniki - Year 2017, Vol 64, Issue 277
Abstract
The new 2G HTS tapes with high critical current and high resistivity in the normal state allow to build low-cost transformers with high short-circuit strength for the low and medium power distribution substations. The authors consider that currently the best chance of building have transformers, which rated currents of their windings do not exceed or slightly exceed the critical current of used superconducting tapes. Such units could be the low or medium voltage transformers with power less than 10 MVA, where the high voltage winding can be made with single HTS tape while the low voltage winding can also be made of single HTS tape or two – three tapes connected in parallel. This eliminates the need of tape transposition or application of the Roebel’s cable. Superconducting transformers could stabilize the low or medium power network and increase the connectivity of renewable and dispersed energy sources. The article presents an analysis of the possibility of using the low and medium voltage superconducting transformers. Such units could be e.g transformers working with renewable energy sources.
Authors and Affiliations
Grzegorz WOJTASIEWICZ
Keywords
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- EP ID EP225121
- DOI 10.5604/01.3001.0010.5028
- Views 84
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