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Design of DC Serve Motor Speed Control System Based on DSP

Author: XiaoYang
Tutor: LuKaiSheng
School: Wuhan University of Technology
Course: Marine Engineering
Keywords: DSP DC servo system PWM motor
CLC: TM383.4
Type: Master's thesis
Year: 2009
Downloads: 462
Quote: 3
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Abstract


Automatic control system of motor is widely used in machinery, steel, mining, metallurgical, chemical, petroleum, textiles, military and other industries. The vast majority of these industries use the motor for the original motivation, and DC servo motor speed control, because of its superior performance , are widely used. On the national economy is of great practical significance.With the power electronics technology, the development of microprocessor technology, as well as permanent magnet materials technology advances, DC motor speed control and servo motor system is the integration and control of digital direction. And pulse width modulation technology and the corresponding power switching circuit technology is the basis of the digital control.DC servo motor and DSP (Digital Signal Processing) development of the current situation and prospects at home and abroad, the paper has made the following aspects: First of all, a detailed analysis of the DC servo motor with DSP status and prospects is made and believed that the speeding research of DSP to DC servo motor has a very good study significance; Secondly, more in-depth description of the main characteristics of DC motor and the working principle and the use of this system to the DC servo motor and power is made; Thirdly introduced the TMSLFDSP2407’s debug environment,interruption,event management module, digital I/O modules. Fourthly, based on the characteristics of TMS320LF2407A DSP chip, the paper analysed the principles of control systems, including the location of the closed-loop control system which is achieved by using the comparison interrupt. On the experimental platform, I programmed the DC servo motor of the all-digital double-loop speed control and did the hardware design of the speed control system(Software design which include: the main program design, timer interruption subroutine and position sampling subroutine, read encoder pulses / angle increment and the speed of calculation and adjustment of the speed PI; hardware design include: transfer of the DC servo motor speed system design, power supply and drive circuit design and measurement of unit design feedback) Fifthly, in accordance with the theory presented in front of bedding, hardware design and software design experiments had been done. At the same time, combined with theoretical and experimental results of a number of analysis is obtained: Obtain the PI parameter through the critical shake law and the transition function method, based on this and further debugs the PI parameter through the experiment. Thus analyzes fit and unfit quality.At the end of this article summarized the design adopted by the learned control knowledge, and looked forward to the future work.

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CLC: > Industrial Technology > Electrotechnical > Motor > Micro-motor > Control of micro motor > Servo motor
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