Abstract—A fast boundary element method (BEM) are presented for the analysis of open floating potential electrostatic problem, where preconditioners base on adjacent nodes or leaves can improve the ill-conditioned coefficient matrix implicitly formed by BEM. Numerical results clearly demonstrate that preconditioners can improve computation time and storage in solving electrical field for site AC withstand power current transformer (CT), the max relative error of this algorithm is 9.5% in comparison to CDEGS, semi-analytical computation method, non-precondition and the finite element. Application of this algorithm can available technique to determinate the minimum distance of site AC withstand power from the threshold value of ICNIRP, optimist corona ring design and solve other open floating potential electrostatic problem in power system.
Index Terms—Boundary element methods, electric fields, substations, power transmission and transformation system.
Deng Jun is with Maintenance & Test Center, EHV, China Southern Power Grid, Guangzhou Guangdong 510663, China and School of Electric Power, South China University of Technology, Guangzhou Guangdong 510640, China (e-mail: firstname.lastname@example.org).
Hao Yanpeng and Li Licheng are with School of Electric Power, South China University of Technology
Chen He, Wang Jun and Zheng xin are with Maintenance & Test Center, EHV, China Southern Power Grid.
Cite:Deng Jun, Li Licheng, Hao Yanpeng, Chen He, Wang Jun, and Zheng Xin, "Application of a Fast Boundary Element Algorithm for Open Floating Potential Electrostatic Problem," International Journal of Modeling and Optimization vol. 3, no. 5, pp. 418-424, 2013.