Dissertation > Excellent graduate degree dissertation topics show

Research on Compensation of Hysteresis in Piezoceramic Actuators

Author: TanZhiBo
Tutor: JinPeng
School: Harbin Institute of Technology
Course: Instrument Science and Technology
Keywords: Piezoceramic actuators Hysteresis Preisach model
CLC: TM282
Type: Master's thesis
Year: 2008
Downloads: 177
Quote: 1
Read: Download Dissertation


Piezoceramic actuators are increasingly used in high precision position control applications because of their nanometer displacement resolution, high stiffness and fast frequency response. However, piezoceramic actuators have the disadvantage of hysteresis and creep behaviors, which severely limits performance of the positioning system, such as giving rise to undesirable inaccuracy or oscillations, even leading to instability in some closed-loop control systems. Hysteresis in piezoceramic material is a form of non-linearity with memory; thus, the piezoceramic expansion depends not only on the current voltage excitation but also on the history of excitation. Modeling and compensation of hysteresis in piezoceramic actuators are the key way to achieve high precision positioning.A brief introduction on hysteresis in piezoceramic actuators is presented and a lot of studies on hysteresis modeling and compensation are discussed. The classical Preisach model is able to represent the non-local memory, which has been shown to exist in piezoceramics and has been shown to be suitable for describing hysteresis in piezoceramics. For the convenience of real-time implementation, a discrete-time Preisach model presented in a recursive form is developed using C language. A hysteresis compensation scheme based on the developed discrete-time Preisach model is also developed.To experimentally verify the performance of hysteresis compensation schemes based on Preisach model, an experimental system is designed and developed. Experimental results demonstrate that the linear voltage-to-displacement relationship is greatly improved with feedforward compensation based on the Preisach model. The maximum width of the hysteresis curve is reduced to 0.6μm, while the width is 3.2μm before compensation. The positioning precision is noticeably improved by adding the feedforward compensation based on the Preisach model with a feedback PID controller. The maximum error is 106nm at the stroke of 20μm.

Related Dissertations

  1. Research of the Performances of Ferroelectric Film and Compositional-Graded Ferroelectric Film,TM221
  2. A Novel Controller Design for Active Power Filter with Low Switching Loss,TN713.8
  3. Research on Adaptive Inverse Control for the Hysteresis and Creep Characteristics of IPMC,TP273.2
  4. Preparation and Properties Research of Ba0.8 Sr0.2 Tio3 /CoFe2O4 Multi-iron Thin Films,O484.1
  5. Research on Thin-Film Hysteresis Loop Measurement System Based on Extraordinary Hall Effect,O484.43
  6. Development of Electric Actuator Servo System,TM921.541
  7. The Study on Corneal Biomechanical Property for Normals and Eyes with Corneal Refractive Surgery by Using Ocular Response Analyzer (ORA),R779.63
  8. Nonlinear Dynamical Research of the Shape Memory Alloy Composite Plates,TG139.6
  9. Study on the Influence of the Surface Anisotropy and Shape on the Magnetic Properties of Nanoparticles,TB383.1
  10. Research on 600K Var Static Var Generator Control System Used in Coal Mine,TM761
  11. Effects of Multiscale Micro/Nano Structured Surfaces on Superhydrophobic Property,O647
  12. Research on Variable Frequency Control of Single Phase Induction Machines,TM343.1
  13. Research on Three-Phase Voltage PWM Rectifier and Control Strategies,TM461
  14. Experimental Study and Finite Element Analysis on the Connections of Multibarrel Tube-confined Concrete Column,TU398.9
  15. Modeling and Control Method of Giant Magnetostrictive Microdisplacement Actuator in Structural Vibration Control,TP273
  16. Research on Characteristics of Piezoelectric Actuator and Structure Design of Two Dimensional Micro-nano Positioning Stage,TH703.8
  17. Research of Eleator Energy Feedback System Based on Quasi-constant Frequency Hysteresis Current Control,TM921.5
  18. Theoretical Analysis for Ferroelectric Thin Films Hysteresis Loop,TM221
  19. corneal Biomechanical Changes in Normal Myopic Subjects and Their Relationship with Other Correlative Factors,R778.1
  20. Nonlinear FEM Analysis on Mechanical Behavior of Joint of Gangue Concrete Filled Steel Tubular Column-Steel Beam under Reversed Low Cyclic loads,TU398.9

CLC: > Industrial Technology > Electrotechnical > Electrical materials > Electric and ceramic materials > Piezoelectric ceramics
© 2012 www.DissertationTopic.Net  Mobile