800kV交流隔离开关的机构运动分析及平衡弹簧优化设计  

MECHANISM KINEMATIC ANALYSIS AND BALANCE SPRING OPTIMIZATION DESIGN OF 800 kV AC DISCONNECTOR

作　　者：孙玉洲 李付永 郭海涛 王巧红 夏立国 师丽芳 刘本学[3] 柴影辉 SUN YuZhou;LI FuYong;GUO HaiTao;WANG QiaoHong;XIA LiGuo;SHI LiFang;LIU BenXue;CHAI YingHui(Pinggao Group Co.,Ltd.,Pingdingshan 461001,China;Henan Pinggao Elcetric Co.,Ltd.,Pingdingshan 467001,China;School of Mechanical and Power Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]平高集团有限公司,平顶山467001 [2]河南平高电气股份有限公司,平顶山467001 [3]郑州大学机械与动力工程学院,郑州450001

出　　处：《机械强度》2021年第1期191-197,共7页Journal of Mechanical Strength

基　　金：国家电网公司科技项目(SGHA0000KXJS1900304)资助。

摘　　要：800 kV交流隔离开关是超高压变电站关键装备之一,其平衡弹簧是减轻所需外载荷、提高装备可靠性的重要组件。围绕800 kV高压隔离开关展开研究,首先基于运动简图进行主闸刀的机构运动分析,获得隔离开关结构势能的理论方程。然后通过虚拟样机技术,利用Adams平台建立隔离开关的动力学仿真模型,得到开、合闸动作时初始设计条件下平衡弹簧的弹性势能与运动机构重力势能差值的仿真结果。为进一步缩小弹簧势能和机构势能的差值,对平衡弹簧进行优化设计,仿真分析结果表明,优化后的平衡弹簧势能与机构势能差值的最大变化量比初始方案减少了约28%,即隔离开关工作时所需外载荷大大减小。800 kV AC disconnector is one of the key equipment for extra high voltage( EHV) substation,and the balance spring is an important component to reduce external load and improve equipment reliability.Aiming at 800 kV EHV disconnector,the mechanism kinematic analysis of main knife mechanism is completed based on the motion diagram,and the theoretical equation of the structural potential energy for disconnector is obtained.Then,the dynamic simulation analysis model of disconnector is established in ADAMS through virtual prototype technology.The difference between the elastic potential energy of the balance spring and the potential energy of the mechanism under the initial design condition is simulated.In order to further narrow the gap between the spring energy and the gravitational potential energy,this paper optimizes the spring system design.The simulation results show that the max-gap change between the optimal balance spring potential energy and the mechanism potential energy is reduced by about 28% than that of the initial.When the disconnector works,the external load required is greatly reduced.

关 键 词：交流隔离开关 平衡弹簧 机构运动分析 优化设计 ADAMS仿真 

分 类 号：TH213[机械工程—机械制造及自动化]