空心电抗器检测仪光电控制系统研究

发布时间：2018-03-13 03:18

本文选题：电抗器　切入点：控制系统　出处：《长春理工大学》2014年硕士论文　论文类型：学位论文

【摘要】：以往对电抗器内表面检测大都采用光纤内窥镜进行检测。该种检测方法主要有三个方面的问题:一是时间长,二是画面不稳定,三是容易引起视觉疲劳,产生漏检。本论文设计了一种基于DSP+CPLD架构的空心电抗器内表面检测器的内窥探头控制系统,如果内窥探头运动不稳定,会影响探头相机的成像效果,因此本设计提出了一种基于自适应宽速细分的电机控制算法,解决了步进电机在低速运行时可能产生抖动的问题,同时,文中还设计了基于光栅尺的闭环内窥探头精确定位方法,并在所设计的硬件平台下完成了上述算法的验证。论文主要工作如下:1.简要介绍了步进电动的特性,建立了内窥探头的运动模型,为步进电机的选择提供了理论依据,针对步进电机运动特性,提出了一种自适应宽速细分的步进电机驱动方法,通过分析表明,该方法可以较好的控制步进电机的运动。2.设计了基于FPGA+DSP架构的电机控制硬件平台,平台采用USB2.0接口与上位机通信。在此硬件平台上,采用C语言完成了自适应细分算法的实现,并采用VHDL语言完成电机驱动时序的设计。3.电抗器内表面检测器的内窥探头控制系统进行了实验,证明了该系统可稳定的工作。
[Abstract]:In the past, optical fiber endoscope was used to detect the inner surface of reactor. There are three main problems in this method: first, long time, second, unstable picture; third, easy to cause visual fatigue. This paper designs an endoscope probe control system based on DSP CPLD architecture for inner surface detector of hollow reactor. If the motion of the probe is unstable, it will affect the imaging effect of the probe camera. Therefore, this paper presents a motor control algorithm based on adaptive wide speed subdivision, which solves the problem that the step motor may jitter at low speed, and at the same time, In this paper, the precise location method of closed loop endoscope probe based on grating ruler is designed, and the algorithm is verified on the hardware platform. The main work of this paper is as follows: 1. The motion model of the endoscope probe is established, which provides a theoretical basis for the selection of stepping motor. According to the motion characteristics of step motor, an adaptive and wide speed subdivision method is proposed for the drive of step motor. This method can better control the movement of stepper motor. 2. The hardware platform of motor control based on FPGA DSP architecture is designed. The platform uses USB2.0 interface to communicate with host computer. On this hardware platform, C language is used to realize the adaptive subdivision algorithm, and VHDL language is used to complete the design of motor driving timing. 3. The experiment of the control system of the inner surface detector of reactor is carried out, which proves that the system can work stably.
【学位授予单位】：长春理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM47

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