安装相间间隔棒的输电线防风偏设计有限元分析 - open repository of .pdfVIP

36 4 2010 4 30 10 38 High V olt age Engineerin g , V ol. 36, N o . 4, A pr . 30, 20 10 朱宽军, 邸玉贤, 李新民, 刘振宇, 刘 彬 ( 中国电力科学研究院, 北京100055) : , , N ew m ark , , , , : : T M 726. 3 T M 74 3 : A : 100 3- 6520( 2010) 04- 10 38- 06 Analysis of Overhead Transmission Line for Asynchronous Swaying by the Finite Element Method ZH U Ku an-jun , DI Y u- x ian , L I Xin- m in , L IU Zhen- yu , LIU Bin ( China Elect ric Po w er Research In st it u de, Beijing 100055, China) Abstract: Fo r the f o rced v ibratio n pheno m eno n o f asy nchro no us sw a ying o f co nducto rs, the no nlinear static and dy- nam ic calculation models are established by u se of the approach co mbining unco nditional st able N ew m ar k m ethod w it h load- increm ent m et ho d, the initial static b alance state o f ho rizontally ar ranged tw o- ph ase bundled conducto rs and their nonlinear dynam ic respo nse under asy nchro no us sw aying are num erically simulat ed , and the displacem ent respo nse and str ess va riation law of condu ctor s ar e obtained under diff er ent w ind load ex citation model s . T he influ- ence o f phase- phase spacer on sub span oscillation amplitu de w as simulated. T he computed result s show that in stal- ling ph ase- ph ase sp acer h as cer tain suppression action to t he sw aying amplitu de and h as little eff ect o n the sub span oscillatio n amplitu de. T he result s can pro vide so m e u seful r ef erences f or the anti- saw ing r esear ch of U H V tr ansm is- sio n. Key words: o ver head t ran sm ission line sw ay ing ph ase- ph ase spacer interphas