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

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

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)
60 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
Pages (from-to)1-5
Number of pages5
JournalIEEE Transactions on Applied Superconductivity
Volume28
Issue number4
DOIs
Publication statusPublished - 1 Jun 2018

Keywords

  • Energy storage
  • fault current limiter
  • Fault currents
  • Limiting
  • magnetic energy storage
  • Power system stability
  • Resistance
  • superconducting coil
  • Wind turbine generators
  • Wind turbines

ASJC Scopus subject areas

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

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