Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Analysis of Complex Ground Systems using Electromagnetic Simulation Method

전자계 시뮬레이션 도구를 이용한 복합 형상의 접지 시스템 해석

  • 김영진 (창원대학교 제어계측공학과) ;
  • 김재형 (창원대학교 제어계측공학과) ;
  • 김성주 (창원대학교 제어계측공학과)
  • Received : 2015.10.12
  • Accepted : 2016.02.11
  • Published : 2016.02.29
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Abstract

This paper deals with analysis of complex grounding system using electromagnetic simulation method. Electrical devices could be damaged by transient voltage such as a lightning surge. Therefore the measures to protect the equipments from transient, such as a lightning are required. The ground system is important in this respect. The representative parameter of grounding system performance is earth ground resistance. Precise prediction of earth resistance is required, because it is difficult to modify and change after the completion of the grounding system construction. Numerical modeling is often used in numerical analysis to identify the electrical characteristics of the grounding system. However complex systems are difficult to predict grounding characteristics by numerical analysis. If the total electric field of the earth in general is similar to the antenna model, in that the incident electric field and expressed as a sum of the scattering field. In this study, the electromagnetic field simulation tool "ANSYS HFSS" module containing the antenna model was used to analyze performance of ground system. Both the simple and complex grounding system were analyzed by simulation tool and experimental method. As a result simulation method is effective to predict performance of a complex ground system.

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References

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