典型故障工况下高压断路器弹簧操动机构运动学仿真OA
Kinematic simulation of spring actuator mechanism of high-voltage circuit breaker under typical fault conditions
高压断路器是电力系统中最重要的控制和保护设备,断路器的响应性能与操动机构动作可靠性密切相关.针对 CT 型弹簧操动机构,利用虚拟样机技术对其进行了三维建模和动力学仿真研究.通过仿真软件搭建操动机构的仿真模型,并设置合理的仿真参数与边界条件,对模型进行必要的简化以提高计算效率,得到其正常工况下的构建运动规律.根据弹簧操动机构在服役状态下可能出现的多种故障工况,建立操动机构典型故障下的运动学仿真模型,研究操动机构分合闸过程中的运动学特性及不同故障类型对操动机构性能的影响.研究发现:合闸弹簧应力松弛 1.5 cm 时合闸后加速阶段时间会延长 4.78 倍,分闸弹簧应力松弛 2 cm 时加速度峰值减小了 32.3%,导致分闸拉杆到达最大位移的时间延长;磙子卡涩故障对凸轮速度和加速度峰值的影响显著,至多可达8.4%.本文的研究结果为弹簧操动机构的设计优化和故障诊断提供了理论依据,有助于提高高压断路器的运行稳定性和可靠性.
The high-voltage circuit breaker is one of the most crucial control and protection devices in the power system.The response performance of the circuit breaker is closely related to the reliability of the operating mechanism.For the CT spring operating mechanism,the three-dimensional modelling and dy-namic simulation of the CT spring operating mechanism were studied using virtual prototype technology.The simulation model of the operating mechanism was constructed through the simulation software,and reasonable simulation parameters and boundary conditions were established,with the model simplified as necessary to enhance calculation efficiency,resulting in the derivation of the construction motion law un-der normal working conditions.Based on various fault conditions that may arise in the service state of the spring operating mechanism,a kinematic simulation model under typical faults of the operating mecha-nism was established,examining the kinematic characteristics of the operating mechanism during the o-pening and closing process and the impact of different fault types on the performance of the operating mechanism.This study conducted kinematic simulation analysis of the closing and opening processes un-der normal operating conditions and several common fault states of the CT-type spring operating mecha-nism.The research finds that when the closing spring undergoes a stress relaxation of 1.5 cm,the time for the closing acceleration phase increases by a factor of 4.78.Additionally,when the opening spring ex-periences a stress relaxation of 2 cm,the peak acceleration decreases by 32.3%,leading to a delay in the time for the opening link to reach its maximum displacement.The impact of the drum jamming fault on the cam speed and peak acceleration is significant,with the effect reaching up to 8.4%.The results of this study provide a theoretical basis for the design optimization and fault diagnosis of spring operating mech-anisms and contribute to the operational stability and reliability of high-voltage circuit breakers.
杨昊;雷鸣凯;王欣宇;滕晓艺;高超;周福升
西安工程大学 电子信息学院,陕西 西安 710048西安工程大学 电子信息学院,陕西 西安 710048西安工程大学 电子信息学院,陕西 西安 710048西安工程大学 电子信息学院,陕西 西安 710048南方电网科学研究院有限责任公司,广东 广州 510663南方电网科学研究院有限责任公司,广东 广州 510663
信息技术与安全科学
弹簧操动机构仿真模型验证机械故障运动学仿真
spring operating mechanismsimulation model verificationmechanical faultkine-matic simulation
《西安工程大学学报》 2026 (2)
1-10,10
陕西省重点研发计划(2023-YBGY-070)中国南方电网有限责任公司创新项目(YNKJXM20222318,YNKJXM20222388)
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