RLGC(f) modeling of a busbar distribution system via measured S-parameters at CENELEC and FCC bands


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HASIRCI Z. , ÇAVDAR İ. H. , ÖZTÜRK M.

TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES, vol.26, no.1, pp.489-500, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 1
  • Publication Date: 2018
  • Doi Number: 10.3906/elk-1606-404
  • Title of Journal : TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES
  • Page Numbers: pp.489-500

Abstract

This paper addresses the extraction of accurate frequency-dependent per-unit-length RLGC parameters for busbar distribution systems using measured S-parameters for the CENELEC and FCC bands. A busbar is a distribution system element (three phase, low voltage) with a modular structure that carries electrical energy in buildings. The S-parameters of a busbar distribution system at different current levels (630 A, 1250 A, 2000 A) are measured with a vector network analyzer and then analyzed for three different two-port connections (L1-N, L2-N, L3-N). A frequency dependent RLGC(f) model is used to characterize the busbar as a transmission line using a derivative-free optimization algorithm. A time-domain causality check is also conducted. Estimated RLGC parameters are presented along with characteristic impedance and propagation constant. Good agreement has been achieved between measured and estimated S-parameters.