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http://dx.doi.org/10.7736/KSPE.2013.30.8.831

Design of Temperature based Gain Scheduled Controller for Wide Temperature Variation  

Jeong, Jae Hyeon (Department of Mechanical System Design Eng., Seoul National Univ. of Sci. & Tech.)
Kim, Jung Han (Department of Mechanical System Design Eng., Seoul National Univ. of Sci. & Tech.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.30, no.8, 2013 , pp. 831-838 More about this Journal
Abstract
This paper focused on the design of an efficient temperature controller for a plant with a wide range of operating temperatures. The greater the temperature difference a plant has, the larger the nonlinearity it is exposed to in terms of heat transfer. For this reason, we divided the temperature range into five sections, and each was modeled using ARMAX(auto regressive moving average exogenous). The movement of the dominant poles of the sliced system was analyzed and, based on the variation in the system parameters with temperature, optimal control parameters were obtained through simulation and experiments. From the configurations for each section of the temperature range, a temperature-based gain-scheduled controller (TBGSC) was designed for parameter variation of the plant. Experiments showed that the TBGSC resulted in improved performance compared with an existing proportional integral derivative (PID) controller.
Keywords
temperature control; gain scheduling; ARMAX; model identification; nonlinear system; PI controller;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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