Quench test of HTS coils for generator application at GE

L. Li, T. Zhang, W. Wang, J. Alexander, X. Huang, K. Sivasubramaniam, E. T. Laskaris, J. W. Bray, J. M. Fogarty

Research output: Contribution to journalArticlepeer-review

Abstract

When a synchronous generator connected to the power grid experiences a fault, it is required to stay on line, ride through the fault, and be able to carry full rated field current when the fault is cleared. The peak current during these events could be 2 times higher than the normal operating current. This may cause an HTS rotor coil to go into normal state and generate Joule heating. If the fault event is short enough and the heat dumped can be carried away by the cooling system, the coil may recover to the superconducting state at the end of the fault. Otherwise, the coil may thermally run away, or 'quench'. To investigate the quench behavior of the HTS rotor coil of the 100 MVA generator at GE Global Research Center, a 1.5 MVA prototype coll was developed and tested to quench under different conditions. The experiment design, set up, tests and test results are presented in this paper.

Original languageEnglish (US)
Pages (from-to)1575-1578
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume17
Issue number2
DOIs
StatePublished - Jun 2007
Externally publishedYes

Keywords

  • High temperature superconductor
  • Over current
  • Quench
  • Superconducting generators

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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