標題: Adaptive Two-Stage Fuzzy Temperature Control for an Electroheat System
作者: Wang, Chih-Hu
Lin, Chun-Hung
Lee, Bore-Kuen
Liu, Chien-Nan Jimmy
Su, Chauchin
電控工程研究所
Institute of Electrical and Control Engineering
關鍵字: adaptive fuzzy control;temperature controller
公開日期: 1-三月-2009
摘要: In this paper, we construct a simple adaptive two-stage fuzzy temperature tracking controller for a commercial electroheat system. Being not well isolated from the environment, it is hard to build an analytical model for the system due to heat convection caused by a fan for heat mixing in the chamber, heat leakage to the environment, variation of the environment temperature, and uncertain nonlinear heating dynamics. Also, as a commercial product by using cheap heater coils and without equipping a cooling system, this system usually has a bad transient response such as a long rise time, a large overshoot, and a long settling time. Moreover, temperature tracking at the steady-state phase is not easy to maintain due to heat interaction with the environment. Here, in the presence of the unknown system dynamics, we use a two-stage fuzzy controller to improve the transient response. Furthermore, a simple fine-tuning adaptive control scheme is proposed to overcome environmental influence and ensure tracking of the temperature setting. Simulation study and experimental results show good performance of the adaptive fuzzy temperature control system.
URI: http://hdl.handle.net/11536/7581
ISSN: 1562-2479
期刊: INTERNATIONAL JOURNAL OF FUZZY SYSTEMS
Volume: 11
Issue: 1
起始頁: 59
結束頁: 66
顯示於類別:期刊論文