The use of rational B-spline surface to improve the shape control for three-dimensional insulation design and its application to design of shield ring

Lee, B.Y.; Myung, Sung-Ho; Park, J.K.; Min, Song; Kim, E.S.

doi:10.1109/61.686999

Cited by 5 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Representation of boundary surface shape There are developments involving high-order shape representation [5] and smooth patch linkage [6] as well as using spline surfaces or rational Bezier surfaces [7]. We also reported on SCM using a triangular representation [8]; special techniques are used to prevent edge parts on triangular patch vertexes [6].…”

Section: Related Researchmentioning

confidence: 99%

Electric field calculation in composite dielectrics by surface charge method based on electric flux continuity condition

Hamada

Takuma

2002

Electrical Engineering Japan

View full text Add to dashboard Cite

SUMMARYWe propose a new surface charge method based on the continuity of electric flux passing through each partial area on the dielectric boundary. N partial areas divided on the boundary give the boundary equations for solving N unknown variables representing the surface charge density distribution. The electric flux is numerically calculated by integrating the normal component of electric flux density on each partial area. This method permits us to exclude the singularity of edge parts from the boundary equations because these parts do not contribute to the integration area. In this paper, we apply first-order functions to simulate both triangular surface shape and charge density distribution on its surface as well.First, we have computed the electric field for a spherical dielectric under a uniform field. The calculated results show that the accuracy of the electric field at the spherical center is almost equal to the accuracy of the total surface area of the polygon which represents the sphere. Furthermore, this method has improved the accuracy of the field by about one order compared with the conventional surface charge methods. Second, we have computed the electric field for a dielectric human model under a uniform field. The calculated results demonstrates that the proposed method works well for a complicated shaped object with a dielectric constant greatly different from that of an ambient medium. ©

show abstract

Section: Related Researchmentioning

confidence: 99%

Electric field calculation in composite dielectrics by surface charge method based on electric flux continuity condition

Hamada

Takuma

2002

Electrical Engineering Japan

View full text Add to dashboard Cite

show abstract

An on-line power/voltage stability index for multi-infeed HVDC systems

Lan

Liao

et al. 2019

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

High-voltage direct current (HVDC) transmission is playing an increasingly important role in modern power systems, and the resulted power/voltage stability issue has raised widespread concern. This paper presents an on-line power/voltage stability index (PVSI) for multi-infeed HVDC (MIDC) systems. Different from the existing indices which are developed mainly for off-line and static analysis, the proposed PVSI can be applied in real time.Effects of system changes on stability assessment such as change of system states and control strategies are considered. Thus, helpful guidance can be provided for on-line HVDC stability and controls. The PVSI is originally deduced for single-infeed HVDC systems in an ''AC way'' by analyzing the power and voltage stability of both pure AC systems and HVDC systems. Moreover, its on-line application in practical MIDC systems is realized by building an equivalent single-infeed model, and utilizing nowadays measurement and communication infrastructures such as wide-area measurement system (WAMS). The effectiveness of the PVSI is verified through simulations in real-time digital simulator (RTDS).

show abstract

Influence of leader shields in the electric field distribution in bushings

Güemes

Postigo²,

Hernando³

Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on In

View full text Add to dashboard Cite

The use of rational B-spline surface to improve the shape control for three-dimensional insulation design and its application to design of shield ring

Cited by 5 publications

References 6 publications

Electric field calculation in composite dielectrics by surface charge method based on electric flux continuity condition

Electric field calculation in composite dielectrics by surface charge method based on electric flux continuity condition

An on-line power/voltage stability index for multi-infeed HVDC systems

Influence of leader shields in the electric field distribution in bushings

Contact Info

Product

Resources

About