温度对真空断路器机械阻尼的影响分析.pdfVIP

第2期 组合机床与 自动化加工技术 No.2 2017 年2 月 Modular Machine Tool Automatic Manufacturing Technique Feb. 2017 文章编号:1001-2265(2017)02-0022-0４ DOI:10．13４62/ j．cnki．mmtamt．2017．02．006 温度对真空断路器机械阻尼的影响分析∗ 晁雪薇,张 鹏,田 宇,董恩源,邹积岩 (大连理工大学 电气工程学院，辽宁大连 11602４) 摘要:在对真空断路器动作特性受温度影响的研究中遇到了机械阻尼无法量化的问题,针对这一问 题,提出了样机实验和ANSYS仿真相结合的方法对机械阻尼进行量化分析研究。 通过对真空断路 器进行温度实验,分析仿真与样机实验结果间的偏差,得到机械阻尼随温度的变化规律,并运用 MATＬAB拟合得到各温度下阻尼与行程间的关系公式。 研究表明:断路器合闸动作初始位置处阻尼 随环境温度升高单调减小,运动最终位置处阻尼随温度升高先减小后小幅增大,拟合所得机械阻尼 与行程公式的系数与温度符合高斯分布。 研究结果可为考虑温度影响的断路器研制设计提供指导。 关键词:温度实验;机械阻尼;误差补偿;真空断路器 中图分类号:TH162;TG506 文献标识码:A Research on Mechanical Damping of Vacuum Circuit Breaker Influenced by Temperature CHAO Ｘue-wei，ZHANG Peng，TIAN Yu，DONG En-yuan，ZOUJi-yan (School of Electrical Engineering，Dalian University of Technology，Dalian Ｌiaoning 11602４，China) Abstract:Mechanical damping isone ofthemainvariablesaffecttheaction characteristic ofvacuum circuit breaker，itsvalue isdifficult tomeasure andeasily affectedby ambient temperature. To solvethisproblem， the method of combining the prototype experiment and ANSYS simulation isproposed.A seriesof tempera- ture tests were carried out，including prototype texts and simulation texts based on ANSYS Maxwell. Ex- plore the law of motion damping changing with temperature，and the formula of the relationship between damping and stroke position.Research shows that:When temperature change，the damping of closing initial position monotonically decrease with temperature rise，damping of final position decreases first and then in- creases with temperature rise，the relationship between temperature and formula ratio of mechanical damping and strokeconformstotheGaussdistribution.Usingtheconclusion