Dissertation > Excellent graduate degree dissertation topics show

Analysis of Dynamic Characteristics for AC Servo System and Study on Parameters-Tuning

Author: ZhaoGang
Tutor: ZhangQing
School: Tianjin University
Course: Mechanical and Electronic Engineering
Keywords: CNC machine full-closed loop AC servo system dynamic characteristics simulation parameters optimization
CLC: TG659
Type: Master's thesis
Year: 2010
Downloads: 300
Quote: 1
Read: Download Dissertation

Abstract


As an important tool of equipment manufacturing industry, machine tool has always been the focus of the Chinese and overseas scholars, especially for its precision and characteristics. The dynamic characteristics of the full-closed loop AC servo system are researched in detail. The content of this paper mainly include:1. A mathematical model of the AC servo system is established. Combining with the PID control strategy, the full-closed loop control system can be constructed.2. A simulation model of single axis for AC servo system is established. On the basis of the simulation model, an analysis of the PID parameters tuning is made. Not only the influence of different system parameters (such as: rotational inertia of motor, equivalent rotational inertia of machine etc) on the AC servo system is studied, but also the performance of the disturbance observer and the method of realizing biaxial simulation are researched.3. The influence of different PID parameters on the AC servo system is analyzed by testing the machine tool’s dynamic characteristics with the specialist application software. At the same time, it also makes a confirmation that the simulation model is correct and reliable.4. An optimization of the PID parameters for biaxial simulation model is made by using Multi Objective Genetic Algorithm and Single Objective Genetic Algorithm respectively. The control targets that the multi objective optimization needs are contour error and every axis’s position error. But the control target for the single objective optimization is just the contour error. By analyzing the results of the optimization, the better method to matching the PID parameters of the biaxial simulation model can be obtained.In summary, the dynamic characteristics of the AC servo system are affected by many factors. The matching relations of the parameters not only exist in the uniaxial system, but also exist in the biaxial system. In order to obtain the perfect state of the AC servo system, all the factors that are just talked about must be considered carefully. The research production of the paper can be applied to the engineering practice to solve the problem.

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study of Interaction between Epoxy Molecules and Carbon Fiber Surface with Molecular Simulation,TB332
  3. Research on Mechanism Analysis and Modeling Simulation of Horizontal Well Tractor,P631.83
  4. Study on Springback of High-Strength Steel Stamping,TG386
  5. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  6. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  7. The Brake Performance of Hydraulic Retarder and Simualtion Research on Its Application for Aircraft Arrestment,TH137.331
  8. Satellite Attitude Determination Based on Gyro and Star Sensor,V448.2
  9. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  10. Research on Orbital Control Method for Space Rendezvous and Docking,V526
  11. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  12. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  13. Single Neuron PID Control for Electro-Hydraulic Servo Unit of Ship Rudder,U666.152
  14. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  15. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  16. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  17. Numerical Simulation of Biomass Direct Reburning,TK16
  18. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  19. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  20. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  21. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23

CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Program control machine tools, CNC machine tools and machining
© 2012 www.DissertationTopic.Net  Mobile