电磁式继电器寿命预测参数检测系统的研究

发布时间：2019-04-25 23:01

【摘要】：电磁式继电器广泛应用于航空航天、通信传输、工业控制等领域当中。作为控制器件,其性能及可靠性往往决定了其所在系统的可靠性。如果能够依靠继电器初态信息预测出其寿命,将有着重大意义。预测继电器寿命需要建立其寿命与其参数关系的模型,这就需要一种精准测量继电器各类参数的检测设备。论文研究了可为寿命预测模型提供数据支撑的电磁继电器参数检测系统,论文的主要工作如下:(1)通过对电磁继电器性能退化过程进行研究,分析出电磁继电器性能退化对继电器各个参数的影响,并从这些参数中选择典型的参数进行检测,围绕这些参数提出了本检测设备的功能需求。(2)通过分析对系统的功能需求合理建立检测系统的具体设计方案,根据该设计方案以工控机搭载高速数据采集卡为硬件核心,完成了实验设备硬件的搭建,以图形化编程语言虚拟仪器开发平台编写了软件系统。该系统操作简单,人机互动友好。检测设备根据高速数据采集卡所采集到的波形计算直流继电器各个参数,并将波形与参数自动显示,同时将参数储存在工控机中。经过实验验证,实验设备的硬件软件系统可以正常工作,能够按照实验要求采集数据,计算储存继电器各个参数。(3)选择具体的继电器试品使用本系统进行完全寿命实验,并按照本系统程序的设定将继电器试品的所有参数数据储存在相应的电子文档中,并利用上述数据进行数据处理和分析,发现了以下规律:接触电阻有逐渐变大的趋势,吸合时间随着动作次数的增加有减小的趋势,时间常数在继电器寿命后期有明显增加的趋势,而超程时间随着动作次数增加有变短的趋势。
[Abstract]:Electromagnetic relay is widely used in aerospace, communication transmission, industrial control and other fields. As a control device, its performance and reliability often determine the reliability of its system. If the relay initial state information can be relied on to predict its life, it will be of great significance. In order to predict the life of relay, it is necessary to establish a model of the relationship between its life and its parameters, which requires a kind of equipment for accurately measuring all kinds of parameters of relay. The main work of this paper is as follows: (1) through the study of the degradation process of the electromagnetic relay performance, the main work of this paper is as follows: (1) the electromagnetic relay parameter detection system which can provide data support for the life prediction model is presented in this paper. The influence of the degradation of electromagnetic relay performance on the parameters of relay is analyzed, and the typical parameters are selected from these parameters to detect. The functional requirements of the testing equipment are put forward around these parameters. (2) through analyzing the functional requirements of the system, the concrete design scheme of establishing the detection system is reasonably established. According to the design scheme, the industrial control computer is equipped with a high-speed data acquisition card as the hardware core. The hardware of the experiment equipment is built, and the software system is compiled by the graphical programming language virtual instrument development platform. The system is simple in operation and friendly in human-computer interaction. The testing equipment calculates the parameters of the DC relay according to the waveform collected by the high-speed data acquisition card, and automatically displays the waveforms and parameters, and stores the parameters in the industrial control computer at the same time. Through the experimental verification, the hardware and software system of the experimental equipment can work normally, can collect the data according to the experimental requirements, calculate and store the parameters of the relay. (3) choose the specific relay test material to carry on the full life experiment with this system. According to the system program, all the parameter data of the relay test are stored in the corresponding electronic documents, and the data processing and analysis are carried out by using the above data. The following rules are found: the contact resistance has the tendency of increasing gradually, and the contact resistance has the tendency of increasing gradually, and using the above data to process and analyze the data. The absorption time decreases with the increase of the action times, and the time constant increases obviously at the end of the relay life, while the overrun time decreases with the increase of the action times.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM581.3

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