Magnetic levitation actuator control system for EDM
ZHAO Fang
ZHANG Jian
SUN Feng
XU Fangchao
LUAN Boran
LIU Yang
ZHANG Xiaoyou
Abstract：A multi-degree-of-freedom magnetic levitation actuator was proposed to replace the conventional electrical discharge machining(EDM)spindle motion,on account of that the spindle cannot adjust the inter-pole gap in time,leading to low machining efficiency during conventional EDM.The structure and principle of the magnetic levitation actuator were analyzed,and the dynamics model of the magnetic levitation actuator was established.The electromagnetic force generated by the actuator was simulated and analyzed by finite element simulation software,and the control effect of the magnetic levitation actuator was simulated and experimentally verified by designing conventional proportional-integral-differentiation(PID)control system and fuzzy PID control system.The results show that the magnetic levitation actuator has good following character,fast response speed and sufficient electromagnetic force to meet the requirements of micro EDM.
Keywords：electrical discharge machiningmagnetic levitation actuatordynamics modelelectromagnetic forcefuzzy PID controlfinite element simulationresponse speedfollowing character
Publication Date：2024-01-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 82-90 )