Title :
Influence of nozzle on electric field of SF6 tank-type circuit breaker
Author :
Zhigang, Liu ; Xin, Lin ; Yingsan, Geng
Author_Institution :
Sch. of Electr. Eng., Xi´´an Jiaotong Univ., Shanxi, China
Abstract :
The isoparametric finite element method is used to calculate the three-dimensional electric field of a tank-type circuit breaker and the large sparse matrix equation is solved using the ICCG (incomplete Cholesky-conjugate gradient) algorithm. The pointer addressing of the coefficient matrix is studied and a new data structure is adopted. The calculations show that the ICCG method can solve large sparse matrix equations effectively. Graph processing techniques on the display of three-dimensional meshes are also studied and a rapid hidden eliminating algorithm is taken to display the mesh graph of the nozzle and chamber. The effects of the nozzle on the electric field are studied.
Keywords :
SF6 insulation; conjugate gradient methods; electric fields; finite element analysis; gas blast circuit breakers; nozzles; sparse matrices; 3D electric fields; SF6; SF6 tank-type circuit breaker; isoparametric finite element method; nozzle effects; sparse matrix equation; tank-type circuit breaker; Circuit breakers; Data structures; Electromagnetic fields; Equations; Finite element methods; Matrix decomposition; Sparse matrices; Sulfur hexafluoride; Three dimensional displays; Transmission line matrix methods;
Conference_Titel :
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Print_ISBN :
0-7803-7459-2
DOI :
10.1109/ICPST.2002.1047163
