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Digital DC speed Ethernet communication design

Author: LiZuoPeng
Tutor: DingQingSheng
School: University of Electronic Science and Technology
Course: Signal and Information Processing
Keywords: DSP FPGA ARM-Linux DC governor Ethernet
CLC: TP273
Type: Master's thesis
Year: 2008
Downloads: 117
Quote: 2
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Abstract


The DC motor has a good braking performance can be a wide range of the inner smooth speed , and thus widely used in the controllable electrical actuator field . But the the traditional DC speed control system is the the complex PID analog control system , discrete components in the reliability and flexibility , as well as control performance deficiencies . Digital control for DC motor , domestic and foreign scholars have conducted a lot of research and a lot of achievements , control technology matures . This article is based on the design of a master chip to DSP digital control system to replace the traditional PID analog control current and accurate speed digital closed-loop control , fault protection , and strengthen the human-machine interface function; FPGA trigger pulse signal modulation to improve the performance and stability of DC speed control system . To adapt to the development of network technology , the system design of a set of Ethernet communication module into the governor system by remote control . The Linux operating system provides a complete set of TCP / IP protocol , you can complete the system network communication function . The article first complete hardware and software design of the DC governor , to give a detailed explanation for the the digital PI speed current bicyclic control and design ideas and methods are given for the the FPGA trigger pulse modulation . Ethernet communication module then describes the hardware and software design , detailed narrative structures and realization of embedded Linux software and hardware platform , the final results of the online test for system design and debugging , debugging results show that the simple structure of the system and reliable control , scalability , and can achieve high control precision , can maintain a fast response and no static error and a smaller overshoot excellent performance . Also in the communication aspects of the completion of the basic functions . With the rapid development of digital signal processors and programmable logic technology , industrial control systems , including the governor digitization will be modern and future trends of the control system , makes modern network application in the industrial control equipment the development of this technology to a new stage .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Automatic control,automatic control system
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