定日镜系统风致振动特性检测系统研究

摘 要

由于国内人民生活水平的提高，科技不断地进步，控制不断地完善，从而促使定日镜成为各种旋转机械行业的主导。随着现代机械朝着高性能、自动化、规模化的革新，定日镜被普遍应用咋各式各样的大型机械和光伏发电上，特别是大型制造业和光伏行业。在光伏发电系统中，定日镜在其中扮演至关重要的作用，并且为了维护好仪器的使用寿命，必须做好防振动性能。所以，新一代的我们需要对定日镜的性能参数和功能参数进行相关研究，这对与光伏发电系统的稳定性能具有重大的意义。

此次设计的定日镜系统风致振动特性检测系统，是基于LABVIEW虚拟软件设计的测试实验。通过自主设计开发振动检测控制系统的总体框架，并针对实验研究，主要设计陈述了硬件电路设计和软件电路设计。结合经济性与实用性搭建了硬件平台，基于虚拟仪器 LABVIEW 软件编写了用于数据实时采集与监测的定日镜系统风致振动特性检测系统。

通过LABVIEW虚拟软件搭建数据实时采集与检测控制系统，满足设计需求，对实验数据进行实时控制解析，并通过显示窗口显示波形，增加了报警电路，同时可以设置数据采集速率等，功能满足要求，系统运行相对稳定。振动检测系统实现软件模块化，为后期做相应的开发设计做好了铺垫。

关键词：定日镜；虚拟仪器；LABVIEW；振动检测

Abstract

Due to the improvement of the living standard of the domestic people, the continuous progress of science and technology, constantly improve the control, so as to promote heliostat to become the leading of various rotating machinery industry. With the innovation of modern machinery towards high performance, automation and scale, heliostat is widely used in all kinds of large machinery and photovoltaic power generation, especially in large manufacturing and photovoltaic industry. In photovoltaic power generation system, heliostat plays an important role, and in order to maintain the service life of the instrument, it is necessary to do a good job of anti-vibration performance. Therefore, the new generation of us need to carry out relevant research on the performance parameters and functional parameters of heliostat, which is of great significance to the stable performance of photovoltaic power generation system.

This design of heliostat system wind-induced vibration characteristics detection system, is based on LABVIEW virtual software design test experiment. Through the independent design and development of vibration detection and control system of the overall framework, and for experimental research, the main design stated the hardware circuit design and software circuit design. The hardware platform was built by combining economy and practicability. Based on LABVIEW software of virtual instrument, the wind-induced vibration characteristics detection system of heliostat system for real-time data acquisition and monitoring was written.

The real-time data acquisition and detection control system was built by LABVIEW virtual software to meet the design requirements. Real-time control and analysis of experimental data were carried out, waveform was displayed through the display window, alarm circuit was added, and data acquisition rate could be set at the same time. The function met the requirements, and the system ran relatively stably. The software modularization of vibration detection system has laid a foundation for later development and design.

Key words: Heliostat; Virtual instrument; LABVIEW; The vibration testing

目录

摘          要... 1

第一章 绪论... 4

1.1  定日镜系统风致振动特性检测的课题研究背景... 4

1.2  定日镜国内外研究现状... 5

1.3  选题的意义... 7

1.4  课题的研究内容及章节安排... 7

1.5  本章小结... 8

第二章 虚拟仪器与labview软件设计... 9

2.1  虚拟仪器技术的产生和发展... 9

2.2  labview编程的基础知识... 9

2.2.1       虚拟仪器程序设计... 10

2.3  labview调试工具与方法... 10

第三章 振动信号采集与分析系统的总体方案... 13

3.1  系统总体设计方案... 13

3.2  加速度传感器的选择... 13

3.3  数据采集模块... 14

第四章 Labview采集程序设计... 16

4.1  程序框图的设计... 16

4.2  振动信号的数据采集模块... 17

4.3  数据采集分析程序设计... 17

第五章 仿真面板设计... 20

5.1  振动采集储存面板设计... 20

5.2  振动信号回放面板设计... 20

5.3  振动信号分析面板设计... 21

第六章 仿真结果分析... 22

6.1  仿真实验结果... 22

6.2  仿真分析... 23

第七章 结束语... 25

参考文献... 26

致    谢... 29

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