基于LabVIEW的E2工业变频器产品检测并行系统的研究与开发

发布时间：2018-05-11 20:22

本文选题：变频器 + LabVIEW　；参考：《东北大学》2014年硕士论文

【摘要】：随着集成电路和电力电子技术的发展,功率器件价格的降低及生产工艺的提高,变频调速越来越被所广泛的使用。变频器的安全性能、稳定性能也越来越重要。因此,对变频器进行产品检测是必不可少的。本文针对E2工业变频器设计了产品出厂前的产品检测系统。用于在E2工业变频器的生产过程中,检测产品是否符合生产标准,从而保证出厂的每一个变频器是安全稳定的。该系统已用于E2工业变频器生产线,并且工作稳定,检测效果良好。本文首先给出E2工业变频器产品检测系统的设计思想和测试要求,对变频器主控芯片的通信方式进行说明。其次为了缩短产品检测周期,提高产品检测质量,本系统采用并行处理方式,并验证并行处理方式相对于串行处理方式的优越性。接着,本系统使用LabVIEW中的VDM模块采集并分析变频器数码管图像,以达到释放人眼检测数码显示的目的。最后从系统的总体方案、硬件电路和主控软件几个方面完整地给出E2工业变频器的产品检测系统。硬件电路方面,本文将整个产品检测系统分为短路测试、关键器件检测、下载程序、显示测试、按键测试、模拟量数字量输入输出测试、继电器测试、Fan输出、UART检测、CAN通信检测、温度检测、PWM信号检测等12个模块。针对不同的测试模块,设计出具体功能电路,并且保证各个模块间无互相影响。主控软件方面,建立整体状态机模式实现各个状态之间的逻辑跳转；根据E2变频器主控芯片通信格式建立检测系统与变频器之间的通信；根据各个测试步骤要求和数据采集卡的使用,编写信号采集、处理子程序；提供人机交互界面,利于测试人员使用和观测,给出对应故障代码,利于对整个测试系统的维护以及对故障的维修。
[Abstract]:With the development of integrated circuits and power electronics technology, the price of power devices and the improvement of production technology, frequency conversion speed regulation is more and more widely used. Frequency converter safety performance, stability performance is also more and more important. Therefore, it is necessary to detect the frequency converter. In this paper, a product detection system is designed for E 2 industrial inverter. It is used in the production process of E2 industrial frequency converter to check whether the product conforms to the production standard, so as to ensure the safety and stability of every frequency converter out of the factory. The system has been used in E 2 industrial frequency converter production line, and the work is stable, the detection effect is good. In this paper, the design idea and test requirements of E _ 2 industrial inverter product detection system are given, and the communication mode of the main control chip of the converter is explained. Secondly, in order to shorten the period of product inspection and improve the quality of product inspection, the system adopts parallel processing, and verifies the superiority of parallel processing compared with serial processing. Then, the system uses the VDM module in LabVIEW to collect and analyze the digital tube images of the inverter, in order to release the human eye detection digital display. Finally, the product detection system of E _ 2 industrial inverter is presented from the overall scheme, hardware circuit and main control software. In hardware circuit, the whole product detection system is divided into short circuit test, key device detection, download program, display test, key button test, analog digital input and output test, relay test fan output UART detection and can communication detection. Temperature detection PWM signal detection and other 12 modules. Specific functional circuits are designed for different test modules, and no interaction between each module is ensured. In the aspect of master control software, the mode of overall state machine is established to realize the logic jump between each state, and the communication between the detection system and the converter is established according to the communication format of the main control chip of E2 frequency converter. According to the requirements of each test step and the use of the data acquisition card, the signal acquisition and processing subroutine is written, and the man-machine interface is provided, which is helpful for the testers to use and observe, and the corresponding fault codes are given. It is beneficial to the maintenance of the whole test system and the maintenance of the malfunction.
【学位授予单位】：东北大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM921.51

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