New technique for using SMES to limit fault currents in wind farm power systems

Mariam E. Elshiekh, Diaa Eldin A. Mansour, Min Zhang, Weijia Yuan, Haigang Wang, Min Xie

Research output: Contribution to journalArticle

16 Citations (Scopus)
18 Downloads (Pure)

Abstract

This paper introduces a new scheme, which uses a multifunctional superconducting device that can be used as an energy storage and as a fault current limiter. It is denoted as a superconducting magnetic energy storage - fault current limiter (SMES-FCL) and is modeled as a number of pancakes. It is connected to a wind turbine power system via tertiary transformer and power converters. A complete control scheme is built to achieve effective power transfer between the superconducting coil and the power system during normal operation to smooth the wind turbine output power. The fault current limiting function is implemented using a new technique that inserts a few pancakes from the whole SMES coil into the main electrical system during the fault and isolates the remaining pancakes. The number of pancakes used to limit the fault is quenched and operates as a resistive fault current limiter. The whole system including the wind turbine, the SMES-FCL model, and the interface circuit are implemented using PSCAD/EMTDC computer package. Also, the control scheme of SMES-FCL is built based on a feedback current signal to enable its operation into the two modes.

Original languageEnglish
Article number5602005
Number of pages5
JournalIEEE Transactions on Applied Superconductivity
Volume28
Issue number4
Early online date28 Feb 2018
DOIs
Publication statusPublished - 1 Jun 2018

Keywords

  • fault current limiter
  • magnetic energy storage
  • superconducting coil
  • wind turbine generators

Fingerprint Dive into the research topics of 'New technique for using SMES to limit fault currents in wind farm power systems'. Together they form a unique fingerprint.

Cite this