Analysis of Multi-motor Cooperative Control for Push-Pull Systems of Vacuum Coating Apparatuses
In order to improve the stability and synergism of multi-motor cooperative control system for vacuum coating apparatus,this paper applies ADRC to the motor speed control system,and carries out a comparative analysis with the conventional PI control,and verifies that the ADRC has a strong disturbance-tolerant ability.Based on the ADRC,in view of large synchronization error among multiple motors speed under external disturbances,this paper puts forward an im-proved deviation coupling control speed compensator,which can achieve 39.22％,75％,and 57.78％reduction in synchro-nization error among multiple motors,recovery time,and vacuum coating tension fluctuation,respectively,compared with conventional speed compensation.
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