Title :
Application of Incremental Control to HVAC Processes
Author_Institution :
Research Engineer, Johnson Control, Inc., Milwaukee, Wisconsin
Abstract :
This paper describes the application of digital PI and PID control algorithms with incremental outputs to HVAC processes using conventional pneumatic actuators. Particular attention is paid to the proper selection of the components for the digital/pneumatic interface. A discussion of hysteresis correction, error deadhand, sampling rates and tuning techniques is included.
Keywords :
Control systems; Digital control; Hysteresis; Integral equations; Pneumatic actuators; Process control; Sampling methods; Temperature control; Three-term control; Valves;
Conference_Titel :
American Control Conference, 1982
Conference_Location :
Arlington, VA, USA