摘要
针对现阶段舞动防治的实际需求,以及传统防舞装置存在的不足,提出了一种基于非线性能量槽技术设计,并含有阻尼颗粒的零频防舞器,加工了多套样机用于开展试验研究。首先利用试验室内振动台、140 m试验导线,基于受迫振动试验方法,验证零频防舞器的阻尼和减振效果;再利用户外真型试验线路,进行长期跟踪监测分析对比,验证该装置实际防舞效果。试验结论表明,在舞动常见的0.1~2 Hz频率范围内,该防舞器在增大阻尼、抑制振幅方面有着较为显著的效果。在实际线路上加装该装置后,可有效提升架空导线防舞、抑舞能力,从而达到保护导线和金具、延长使用寿命的目的。
In view of the actual needs of the current stage of galloping prevention and control,as well as the shortcomings of the traditional anti-galloping device,this paper proposed a design scheme for the non-linear-stiffness anti-galloping device based on nonlinear energy sink technology and damping particles,and processed several sets of prototypes used to carry out experimental research.First,a vibration platform with 140 m conductor in the lab was employed to verify the damping and anti-vibration effect of the non-linear-stiffness anti-galloping device based on the forced vibration test method;and then,the real test line was employed in the field to perform long-term tracking and monitoring analysis and to verify the actual anti-galloping effect of the device.The test conclusion shows that,in the common galloping frequency range of 0.1~2 Hz,the non-linear-stiffness anti-galloping device has a significant effect in increasing the damping,suppressing the amplitude,which can effectively improve the ability of anti-galloping as well as suppressing of the overhead conductors.Therefore,the purposes of protecting the transmission lines and fittings and prolonging their service life can easily be achieved.
作者
赵彬
李孟轩
刘彬
朱宽军
司佳钧
ZHAO Bin;LI Mengxuan;LIU Bin;ZHU Kuanjun;SI Jiajun(State Grid Galloping Prediction and Warning Sub-center,China Electric Power Research Institute,Beijing 100055,China)
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2024年第4期1518-1525,共8页
High Voltage Engineering
基金
国家电网有限公司科技项目(5500-202155321A-0-0-00)。
关键词
输电线路
覆冰舞动
舞动防治
防舞装置
非线性能量槽
transmission line
icing-caused galloping
anti-galloping
anti-galloping device
nonlinear energy sink
