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An On-line Self-tuning Algorithm of PI Controller for the Heating and Cooling Coil in Buildings
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An on-line self-tuning algorithm of PI controller for the heating and cooling coil in buildings is described in the paper. The algorithm evaluates the controller performance by the integral square error (ISE) of the coil supply air temperature, and identifies the corrections of the P and I gains by observing the spectrum distribution of the ISE. This method is easy to implement in the HVAC energy control systems due to its simplicity. This paper describes the basic feature of the on-line self-tuning algorithm for typical PI controllers in the energy management system and presents the detail of the algorithm. Demonstration example are presented as well.
Zhou, Q.; Liu, M. (1998). An On-line Self-tuning Algorithm of PI Controller for the Heating and Cooling Coil in Buildings. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from