Sequence reference frame-based new sag/swell detection method for static transfer switches

TÜMAY M., MERAL M. E. , BAYINDIR K. Ç.

IET POWER ELECTRONICS, vol.2, no.4, pp.431-442, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 2 Issue: 4
  • Publication Date: 2009
  • Doi Number: 10.1049/iet-pel.2007.1013
  • Title of Journal : IET POWER ELECTRONICS
  • Page Numbers: pp.431-442

Abstract

A fast synchronous reference frame (SRF)-based sag/swell detection method for static transfer switches (STSs) is proposed. In the proposed method, the positive sequence d-q components are passed through a differentiator The resulting values are then crisscrossed with the positive sequence d-q components and calculated to extract the original positive sequence components. The obtained original positive sequence d component is used as an ideal error signal to generate the transfer signal. This improves the response time of sag/swell detection with respect to conventional methods. Simulation studies using the PSCAD/EMTDC software program confirm the improvement.