Improved PID Autotuning for Balanced Control Operation.

Conference Paper · January 2009with3 Reads
Source: DBLP
Conference: Proceedings of 12th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2009, September 22-25, 2008, Palma de Mallorca, Spain


    This paper analyzes optimal controller settings for controllers with One-Degree-of-Freedom (1-DoF) Proportional-Integral-Derivative (PID) structure. The analysis is conducted from the point of view of the operating mode (either servo or regulation mode) of the control-loop and tuning mode of the controller. Performance of the optimal tuning settings can be degraded when the operating mode is different from that selected for tuning and obviously both situations can be present in any control system. In this context, a Performance Degradation index is minimized and based on this minimization, an autotuning procedure as a function of the normalized process dead-time is proposed.