Comparison of Connection Methods of One-axis Tracking Filters and Implementation for Pneumatic Anti-Vibration Apparatus

Repetitive compensators which are based on the internal model principle are utilized to suppress periodical disturbance. These are connected in series with other compensators and controlled objects. However, PI compensator is the parallel connection of proportional and integral compensators. Therefore, this paper shows comparisons between series and parallel connection of one-axis tracking filters considering both frequency response of PI compensator and period of disturbance.