Launchers Research And Application Of High-performance Servo System,

The dissertation takes launching equipment as object, and studies the design andrealization of the servo system. The servo system of launching equipment has big inertia,meanwhile high accuracy and response speed are required. Feed-forward control andfuzzy-PID self-tuning control are applied by use of systematic designing, theoreticalanalysis, computer simulation and experimental research are applied to the launchingequipment. The research has an important significance in improving the response speedand dynamic precision of servo system.The dissertation first introduces the research work that has been done home andabroad on servo system. Then, overall design scheme of the system is elaboratelyintroduced according to pitching transferring and oriental rotating. In the following,mathematical model is induced, current-loop, speed-loop and position-loop are designedaccording to the performance requests. Then, the model of three-loop is built, andsimulation analysis is carried out to validate precision of the model. Fuzzy-PID self-tuningcontroller is designed according to the characteristics of big inertia and big range load, thismethod is based on PID control, and the parameters are real-time self-modified by fuzzytheory. The results of simulation indicate this method can gain good effects. Finally,experiments of PID control and fuzzy-PID self-tuning control are carried out on the actualcontrol platform. The results show that the design scheme is correct and the algorithms areeffective, and the system achieves good performances. Moreover, the study of thedissertation has a certain role on promoting the performance of servo system.