期刊刊名：科學與工程技術期刊 　 卷期：3卷4期

篇名出版日期：2007年12月1日

作者：HUAN-LIANG TSAI,蔡渙良

語言：English

關鍵字：generalized LQG/LTR method,catalytic partial oxidation,fuel processing system,通用型線性二次高斯及迴路轉移函數回歸法,觸媒不完全氧化,燃料處理系統

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摘要：
This report presents an optimal control system design for a fuel processing system (FPS) using a generalized linear quadratic Gaussian and loop transfer recovery (LQG/LTR) method. The FPS uses natural gas as fuel and works with a catalytic partial oxidation (CPO) reaction. The control objective focuses on the regulation performances of an output vector in response to a stack current command. First, an optimal controller was designed subject to a generalized linear quadratic performance index to shape the target feedback loop function. Then a Kalman filter was designed to provide an optimal estimation of state variables for minimum and non-minimum phase plants in an LTR process. The proposed method provides another degree-of-freedom in optimal controller design and enables the compensated system to maintain a prescribed degree of stability. Finally, numerical simulations reveal that the proposed method achieves better performance and robustness properties in time- and frequency-domain responses.

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