The Control Design And Simulation Of DC Servo Velocity System Based On DSP

In recent years, the DC servo control system has been shipping port industry, precision CNC machine tools, machining centers, Robot fields have been widely applied. With computer control, digital signal processors, power electronics, information technology, and sensing and detection NC technology, the development of DC servo control system toward precision, and high-speed digital control circuits, power devices modular direction.Against DC servo motor and the internal and external DSP development situation and the prospects The papers were made following several aspects : First, detailed analysis of the DC servo motor and DSP development situation and the prospects DSP and think of the DC servo motor speed control is very useful for the practical significance; Secondly, more in-depth introduction of the DC motor and the main features of physics; then introduced the DSP system control the use of the special is a dedicated DSP Besides, introduced the system to use the DC servo motor, power, Photoelectric encoder and ICETEK-LF2407-A experimental plate; Besides, a more detailed description of PWM Speed Surge principle of H-type bipolar PWM drive system irreversible course of the work; Moreover, the basis for TMS320LF2407A DSP features, which built the experimental platform. Software on the DC servo motor digital-loop speed control of programming, and the hardware design of the control system (software design include : main program design, D interrupt handling subroutine, current PI regulator, Reading pulse encoder / increment and calculate angular speed and speed PI regulator; Hardware design is mainly include : the entire DC servo motor speed control system program design, power and drive circuit design and measurement feedback module design); Besides, as described under the previous theoretical groundwork, hardware and software design experiments test and achieved the first objective, in conjunction with theoretical and experimental results of some of the necessary analysis. In this last respect to the ordinary PID control in some special occasions, there may be some shortcomings. Fuzzy introduced the concept of PID control, in a brief description of the theory of fuzzy control, Simulink right through ordinary PID control and adaptive fuzzy PID control of imitation true, then a comparison of these candidates, To achieve in the future DSP fuzzy PID algorithm to speed control done exploratory study. In this paper, but also to the direction of future research made some improvement ideas.