Cross-coupled fuzzy PID synchronous control for H-type precision motion platform
WANG Li-mei
ZHANG Zong-xue
Abstract：Aiming at the nonsynchronous movement problem of both sides of H-type precision motion platform driven by two permanent magnet linear synchronous motors ( PMLSM ) which is caused by such uncertain factors as motor parameter variation and disturbance of PMLSM, an cross-coupled fuzzy PID control method was proposed. In the single axis, the fuzzy PID control was taken as the position controller, and the ordinary PI control was taken as the speed controller to guarantee the tracking accuracy of signal axis. In addition, the cross-coupled control ( CCC) method was introduced into the two axes to eliminate the mechanical coupling between the two PMLSM, so that the synchronous position error between the two axes could be reduced. The results show that the control method combined the cross-coupled and fuzzy PID control can make the synchronous error of H-type precision motion platform converge to zero, and can make the system have good tracking performance and robustness.
Keywords：H-type precision motion platfromcross-coupled controlfuzzy PID controlsynchronous errorpermanent magnet linear synchronous motor ( PMLSM)tracking accuracysynchronous motionmechanical coupling
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1-5 )