基于时域有限差分法的电缆系统电磁瞬态分析-电子学报.PDFVIP

3 V ol. 34 N o. 3 2006 3 ACTA ELECTRON ICA SINICA M ar. 2006 齐 磊, 崔 翔 (, 071003) : . EMTP , . , . , , . , . , , . : ; ; ; : TM 63 : A : ( 2006) E l ctromagn tic Transi nt Analysis of Cabl Syst m Bas d on FDTD M thod Q I L i, CUI Xiang ( S chool of E lectrical E ng ineering, N orth Ch in a E lectric P ow erU n ivers ity, B aod ing, H eb ei 071003, C h ina) Abstract: E lectrom agnetic trans ient analys is of h ighvoltage cab le system has sign ificant practicalm ean ing on the eng ineer ing problem s, e g overvoltage p rotection, insu lation coord ination and electrom agnetic interference Fre quencydependent character istics of both d istr ibuted param eters and pha sem odal transform ation m atr ices need to be taken into account for trad itionalm ethod, e g EMT P sofwt are Ba sed on the fin ite d ifference tmi edom ain ( FDTD ) m ethod, a nov elm odel is presented for trans ient analy sis of pow er cab le sy stem In th is m odel, only frequencydepend ent character istic of cable s mi pedance param eters needs to be cons idered in phase dom ain Com pared w ith otherm od els, the propo sed m odel is dem onstrated to be correct A s an ex tension, th ism odel is mi proved for trans ient analy sis of co ax ial cab le system T he calcu lated resu lts are in good agreem ent w ith the expermi en tal re sults K y words: pow er cab le; coax ial cable; electrom agnetic tran sien;t fin ite d ifference tmi edom ain 1 , . , [ 10], , . ,