基于ADAMS的六氟化硫高压开关的运动特性研究

发布时间：2018-03-05 06:09

本文选题：高压开关　切入点：分闸性能　出处：《华北电力大学》2015年硕士论文　论文类型：学位论文

【摘要】：六氟化硫高压开关在电力系统安全运营过程中占有举足轻重的地位,它的弹簧操动机构是十分重要的构成部分,弹簧操动机构的安全稳定工作直接决定了开关开合闸速度及机械特性等方面要求是否达标。由于机械运动时,机械系统内部零件之间的相互作用影响各个构件是否运动到位,达到工作要求。针对机械系统内部构件碰撞的研究,可以通过虚拟样机技术建立机械系统动力学以及运动学模型来进行仿真和分析,然后根据分析结果对设计提出改进措施,为工程设计和应用打下良好的基础。本文以某型号六氟化硫高压开关为研究对象,主要研究六氟化硫高压开关的弹簧操动机构运动特性,六氟化硫高压开关的三维机构模型可以通过Pro/E来建立完成,在Pro/E中完成弹簧操动机构与分闸机构的组装,组装完成后通过Pro/E与Adams的接口将完整的六氟化硫高压开关模型导入到Adams中进行仿真分析。在Adams中首先完成对机构各个零件的材料定义；然后进行各个零件之间的约束以及运动副的添加,使之成为完整的六氟化硫高压开关动力学模型；最后通过调整设置分闸弹簧刚度,来提升六氟化硫高压开关的分闸性能,同时要保证分闸过程中动静触头的最小开距满足要求的额定安全开距。在高压开关模型是全部刚体的条件下,通过Adams的仿真分析,对比各项参数,得到合理的弹簧刚度系数。因为高压开关模型在Adams中存在的都是刚性零件,没有考虑弹性形变,不贴近现实状况,所以我们还要利用ANSYS软件对高压开关中绝缘杆进行柔性化,再导入到Adams中的高压开关模型中,进行刚柔耦合仿真分析,通过仿真结果,研究六氟化硫高压开关分闸过程中的运动特性。
[Abstract]:Sulfur hexafluoride high voltage switch plays an important role in the safe operation of power system, and its spring operating mechanism is a very important component. The safety and stability of the spring actuator directly determines whether the switching speed and mechanical characteristics meet the requirements. Because of the mechanical movement, the interaction between the components of the mechanical system affects the movement of each component in place. According to the research of internal component collision of mechanical system, the dynamics and kinematics model of mechanical system can be established by virtual prototyping technology to simulate and analyze, and then according to the analysis result, the improvement measures are put forward. This paper takes a certain type of sulfur hexafluoride high pressure switch as the research object, mainly studies the movement characteristic of spring operating mechanism of the sulphur hexafluoride high pressure switch. The three-dimensional mechanism model of sulfur hexafluoride high pressure switch can be built by Pro/E, and the assembly of spring operating mechanism and gate opening mechanism can be completed in Pro/E. After the assembly is completed, the complete high voltage switch model of sulfur hexafluoride is imported into Adams through the interface between Pro/E and Adams for simulation and analysis. The material definition of each part of the mechanism is first completed in Adams. Then the constraints between the various parts and the addition of motion pairs are carried out to make it a complete dynamic model of sulfur hexafluoride high-voltage switch. Finally, by adjusting the stiffness of the switch spring, the switching performance of the high-voltage switch is improved. At the same time, it is necessary to ensure that the minimum opening distance of the static and static contact meets the requirements of rated safe opening distance during the process of opening. Under the condition that the high voltage switch model is all rigid bodies, the parameters are compared through the simulation analysis of Adams. The reasonable spring stiffness coefficient is obtained. Because all the high voltage switch models in Adams are rigid parts, the elastic deformation is not considered, and it is not close to the reality, so we should use ANSYS software to make the insulation rod in the high voltage switch flexible. Then it is introduced into the high-voltage switch model of Adams, and the rigid-flexible coupling simulation analysis is carried out. Through the simulation results, the kinematic characteristics of the high-voltage switch with sulfur hexafluoride during the opening process are studied.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM564

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