Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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Characteristics of Time Varying Magnetic Fields in Thyristor Rectifiers of 19kA in Chlor-Alkali Industry

  • Shirmohammadi, Siamak (Department of Electrical Engineering, Smart Grid Research Center, Chonbuk National University) ;
  • Suh, Yongsug (Department of Electrical Engineering, Smart Grid Research Center, Chonbuk National University)
  • Published : 2014.07.01
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Abstract

This paper investigates the experimental and simulated time-varying magnetic field generation in a chlor-alkali manufacturing process. 19kA thyristor-based rectifier is modeled and analyzed. The performance is compared and evaluated on the basis of exposure guidelines from ICNIRP. The mechanical structure of current carrying conductor is simplified as an infinite long busbar model and low frequency harmonic contents up to 65kHz are considered. Thyristor rectifier generates a significant amount of low frequency magnetic field harmonic contents both at ac and dc busbar of rectifier infringing the limit of ICNIRP. Along with simulation analysis the experimental measurement of the time-varying magnetic field in ac input busbar, rectifier block, dc load and busbar are presented. The experimental test results partly confirm the simulation results.

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