| 引用本文: | 黄新波,马龙涛,肖 渊,遵明伟.均匀覆冰下的架空线有限元找形分析[J].电力自动化设备,2014,34(6): |
| HUANG Xinbo,MA Longtao,XIAO Yuan,ZUN Mingwei.Form-finding analysis based on finite element method for line with uniform ice-coating[J].Electric Power Automation Equipment,2014,34(6): |
|
| 摘要: |
| 在ANSYS中建立导线有限元模型，分别对架空线在自重载荷作用和均匀覆冰且不考虑风载荷的2种情况下进行有限元找形分析。通过对比ANSYS找形结果与理论计算结果，发现ANSYS找形方法所得结果更接近精确悬链线解，验证了ANSYS找形的可靠性。找形结果还说明在覆冰状态下导线的各个参数变化明显，这对架空线路的安全运行造成了一定的隐患，有必要对其进行找形分析。进一步提出把有限元找形分析和在线监测系统相结合，可以使得覆冰状态下的监测结果更加精确。 |
| 关键词: 架空线 找形 索结构 覆冰 ANSYS 有限元 监测 模型 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目（51177115）；教育部新世纪优秀人才支持计划（NCET-11-1043）；陕西省教育厅专项科研计划项目（2010JK569）；西安工程大学创新基金资助项目（chx2013036） |
|
| Form-finding analysis based on finite element method for line with uniform ice-coating |
|
HUANG Xinbo1, MA Longtao2, XIAO Yuan2, ZUN Mingwei2
|
|
1.College of Electric and Information，Xi’an Polytechnic University，Xi’an 710048，China;2.College of Mechanical and Electrical Engineering，Xi’an Polytechnic University，Xi’an 710048，China
|
| Abstract: |
| A finite element model is established in ANSYS for the finite element form-finding analysis of overhead line，considering dead weight，uniform ice-coating and no wind load. The comparison between ANSYS form-finding analysis and theoretical calculation shows that the results of the former is closer to the accurate catenary solution，verifying its reliability. The results of form-finding analysis show that the ice-coating changes line parameters obviously，which is a potential threat to the safe operation of overhead line，and the form-finding analysis is necessary for ice-coated lines. It is proposed to integrate the finite element form-finding analysis into the online monitoring system to obtain more accurate conditions of ice-coated lines. |
| Key words: overhead line form-finding cable structure ice-coating ANSYS finite element monitoring models |
