摘要
光纤复合架空地线(OPGW)的断股严重影响着电力系统的安全稳定性,为了研究雷电流对OPGW断股的影响,应用COMSOL Multiphysics对雷击点局部温度进行仿真,对雷电流C分量单独作用和连续雷电流A、C分量作用下的OPGW断股特性进行分析。结果表明:雷电流C分量对OPGW的破坏性较为严重,转移电荷量是产生断股的主要原因。连续雷电流A、C分量作用产生温度与断股程度均高于C分量单独作用,雷电流A分量对断股有明显影响。仿真结果为今后OPGW的抗雷击性能与机械性能研究提供参考。
The broken stock of the OPGW(optical fiber composite overhead ground wire)severely affects the safety and stability of the power system.To study the effect of the lightning current on the strand breaking of the OPGW,the local temperature of the lightning strike point is simulated using COMSOL Multiphysics,and the C component of the lightning current is used alone.With the continuous lightning currents A,C components under the effect of OPGW broken stock analysis.The results show that the lightning current C component is more destructive to OPGW,and the transfer charge is the main reason for the generation of broken stock.The effects of continuous lightning currents A and C components on the temperature and the degree of strand breaking are both higher than the C component alone,and the lightning current A component has a significant effect on strand breaking.The simulation results provide reference for future research on anti-lightning performance and mechanical performance of OPGW.
作者
孙伟
郝斯杰
姚学玲
孙晋茹
黄杨
何群
王影影
SUN Wei;HAO Sijie;YAO Xueling;SUN Jinru;HUANG Yang;HE Qun;WANG Yingying(School of Mechanical and Electrical Engineering,Xi^an University of Architecture and Technology,Xiran 710055,China;State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《电瓷避雷器》
CAS
北大核心
2020年第2期10-14,共5页
Insulators and Surge Arresters
基金
国家自然科学基金资助项目(编号:5157715)。
