The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Electric Field Optimization using the NURB curve in a Gas-Insulated Switchgear

NURB 곡선을 이용한 가스절연 원통형 관로 내에서의 전계 최적화

  • 한인수 (한국철도기술연구원 차세대고속철도기술개발사업단) ;
  • 김응식 (호서대학교 안전보건학과) ;
  • 민석원 (순천향대학교 전기통신학과) ;
  • 이준호 (호서대학교 전기공학부) ;
  • 박종근 (서울대학교 전기공학부) ;
  • 이태형 (한국철도기술연구원 차세대고속철도기술개발사업단) ;
  • 박춘수 (한국철도기술연구원 차세대고속철도기술개발사업단)
  • Published : 2009.03.01
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Abstract

This paper attempts to develop an algorithm which optimizes the electric field through the so-called NURB(Non-Uniform Rational B-spline) curve in order to improve the insulation capacity. In particular, the NURB curve is a kind of interpolation curve that can be expressed by a few variables. The electric field of a conductor is computed by Charge Simulation Method(CSM) while that of a spacer by Surface Charge Method(SCM); this mixed calculation method is adopted for the electric field optimization. For calculation of the initial and optimal shapes, the Gauss-Newton method, which is quite easy to formulate and has slightly faster convergence rate than other optimization techniques, was used. The tangential electric field, the total electric field, and the product of the tangential electric field and area (Area Effect) were chosen as the optimization objective function by the average value of electric field for the determined initial shape.

Keywords

References

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