塑壳断路器分断过程的仿真与分析

发布时间：2018-03-03 13:13

本文选题：断路器　切入点：脱扣过程　出处：《河北工业大学》2014年硕士论文　论文类型：学位论文

【摘要】：低压电器在电器行业中应用非常广泛，它在配电、保护人身安全中起着非常重要的作用，能否可靠分断是研究断路器的重要方面，由于断路器的分断过程比较复杂，涉及的领域比较多，，因此对其进行分析和研究是一个重要的课题，本文以TM-30/100型塑壳断路器为主要研究对象，基于ANSYS、Pro/E、ADAMS三个软件的功能，对断路器进行分断过程的联合仿真，具体分以下几个方面：一、根据实际的尺寸在Pro/E中建立断路器的模型，再将模型导入到ANSYS中，首先对双金属片进行有限元热分析，将分析结果作为动力学仿真中双金属片自由端的位移。接着计算不同电流和开距下电磁脱扣机构的电磁力和动静触头间的电动斥力，作为力的载荷加载到ADAMS中。二、将模型通过专用的软件导入到ADAMS中，依据前面分析的数据进行加载后，分别对断路器的延时和瞬态分断过程进行动力学仿真，观察触头运动情况，及电动斥力在短路状态时对触头分断过程的影响。
[Abstract]:Low-voltage electrical apparatus is widely used in electrical industry, it plays a very important role in distribution and protection of personal safety. It is an important aspect to study circuit breaker whether it can break reliably, because the breaking process of circuit breaker is more complicated. There are many fields involved, so it is an important subject to analyze and study the circuit breaker. This paper takes the TM-30/100 type plastic case breaker as the main research object, and based on the functions of ANSYSU Prop / E / Adams software, simulates the breaking process of the circuit breaker. It can be divided into the following aspects:. First, the model of circuit breaker is established in Pro/E according to the actual size, and then the model is imported into ANSYS. Firstly, the finite element thermal analysis of bimetallic sheet is carried out. The results are taken as the displacement of the free end of the bimetallic sheet in the dynamic simulation. Then the electromagnetic force of the electromagnetic release mechanism and the electric repulsion force between the static and static contacts under different current and open distance are calculated and loaded into the ADAMS as the load of the force. Secondly, the model is imported into ADAMS through special software. After loading according to the data of the previous analysis, the dynamic simulation of the circuit breaker's delay and transient breaking process is carried out, and the contact motion is observed. And the effect of electric repulsion force on the breaking process of contact in short circuit state.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM561

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