Research On Encoder Subdivision Technology And Simulation Of Control System

In recent years, with the power electronics technology, computer technology, light the rapidly development of communication, servo control technology and application of the system is also not uncommon, for motor servo system control strategy also emerge in endlessly, but of high precision servo control system research on the precision of the still in the lash of the whip and plowed the hard earth. Domestic and foreign market demand for high precision servo control system is still imminent. In view of this, this article through the encoder anyway hash algorithm and the algorithm is added to the servo system control strategy, which in a certain degree of the control precision of the servo system greatly improves the.The paper firstly expounds the overall structure of the control strategy simulation of the encoder subdivision technology under the Matlab software, and then analyzes the encoder structure and establishes the mathematical model according to its principle. On the basis of the mathematical model of the encoder, the M software is used to simulate the Matlab files, so as to realize the initial model of the encoder in the Matlab software. Secondly, in the Matlab software of permanent magnet synchronous motor model with encoder model contrast joins the encoder model before and after the motor model in high speed, medium speed and low speed under different circumstances the servo accuracy of influence. Then, encoder interpolation algorithm of the mathematical model is established and in permanent magnet synchronous motor Matlab model this encoder interpolation algorithm, the mathematical model of programming and simulation, compared with before and after the subdivision algorithm model of the motor in high, medium and low speed servo accuracy under the environment of different; comparison of different line number encoder model of permanent magnet synchronous motor(PMSM) affect the accuracy of. Finally, the FOC and DTC control strategies are added in the encoder subdivision model of permanent magnet synchronous motor, and the accuracy of the servo motor is compared with the two control strategies before and after the addition of the encoder. After the series of comparative study of simulation. The results prove that in low speed environment coder subdivision technology of the servo motor accuracy is greatly improved, which proves that the established encoder subdivision algorithm model is correct.The research for high precision servo system control research provides a novel way and the platform that with pure software Matlab simulation out a set of servo motor control model, and creative, which joined the encoder segmentation model, through a series of simulation experiments, fully proved that the coder subdivision technology of servo control accuracy of the system is greatly improved, the way and the platform for the follow-up study of high precision servo system provides a good environment.