摘要
针对断路器弹簧机构常见的合后即分故障,文中提出了一种基于图像特征点跟踪的断路器合后即分故障分析方法。首先通过对弹簧机构传动过程的分析,确定了合后即分故障的主要分析方向。然后,基于高速摄影机数据采集平台完整记录了合闸、分闸瞬间,弹簧机构中四级分闸杠杆的传动过程,提出了基于图像特征点跟踪的弹跳幅度分析方法,通过特征点准确跟踪了四级分闸杠杆的运动轨迹,并引入了偏转角度参数准确量化了四级分闸杠杆的弹跳幅度。最后,通过对偏转角度波形的分析,判断出了导致断路器合后即分故障发生的主要原因。文中的实验验证部分对故障的分析结论进行了充分的论证,此次故障分析的经验可为后续合后即分故障的研究与处理提供有益借鉴。
As for such common fault as opening immediately after closing of spring operating mechanism for circuit breaker,in this paper an opening immediately after closing of circuit breaker based on the image feature point track-ing is proposed.Firstly,the main analysis direction of the fault of opening immediately after closing is determined through the analysis of the transmission process of the spring operating mechanism.Then,based on the high-speed camera data acquisition platform,the complete process of the closing and opening moments,as well as the transmis-sion of the four-stage opening levers in the spring operating mechanism,are recorded,and the bounce amplitude anal-ysis method based on image feature point tracking is proposed.The movement track of the four-stage opening lever is accurately tracked through the feature point,and the deflection angle parameter is introduced to accurately quanti-fy the bounce amplitude of the four-stage opening lever.Finally,through the analysis of the deflection angle wave-form,the main cause of the opening immediately after closing of the circuit breaker is determined.The analysis con-clusion of the fault is fully demonstrated by the experimental verification part of the paper,and the experience of this fault analysis can provide useful reference for the research and treatment of the subsequent opening immediately af-ter closing.
作者
沙浩源
刘佩
王之赫
郭涛
王树刚
许建刚
谢天喜
孙毅
朱超
邓凯
SHA Haoyuan;LIU Pei;WANG Zhihe;GUO Tao;WANG Shugang;XU Jiangang;XIE Tianxi;SUN Yi;ZHU Chao;DENG Kai(State Grid Jiangsu Electric Power Co.,Ltd.EHV Branch Company,Nanjing 211102,China;State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211100,China;Electric Power Research Institute of State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211103,China)
出处
《高压电器》
北大核心
2026年第2期25-32,共8页
High Voltage Apparatus
基金
江苏省重点研发计划(BE2020027)
江苏省国际科技合作项目(BZ2021012)。
关键词
断路器
合后即分
高速摄影机
四级分闸杠杆
偏转角度
circuit breaker
opening immediately after closing
high speed camera
four-stage opening lever
deflection angle
