Control of a Weigh Feeder Based on Performance Assessment

Abstract

This study discusses a design method to determine one of the design parameters in generalized minimum variance control (GMVC) law from the viewpoint of the control assessment. In this paper, a PI control law is designed based on GMVC. In addition, the control performance of the designed controller is evaluated by using a minimum variance index, and the design parameter in GMVC is automatically changed such that the control performance is optimized. In the proposed method, unknown plant parameters are estimated, and the PI control law based on GMVC is updated using estimated parameters. Finally, the effectiveness of the proposed method is shown through an experiment.