A Fuzzy Logic System Approach to Main Fuel Controller Design for Twin-Spool Turbofan Engine

• Main Author: 李洪明
• Other Authors: 林麗章
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/06704221543596312686

碩士 === 國立中興大學 === 機械工程研究所 === 83 === Fuzzy logic systems are very suitable for the control of highly uncertain and nonlinear time-varying systems. In this thesis, We propose a fuzzy approach to the design of main fuel controller for F-100 engine based on some a periori knowledge about hte engine. We first introduce the mathematical model of F-100 turbofan engine and the characteristics of its major components. the control requirements of general gas turbine engines and the design criteria of F-100 engine are also described. For simplicity, We consider only the main fuel flow control variable. Based on the relations between engine''s dominant variables and the main fuel flow control variable, we propose a control structure consisting of fuzzy controllers for reasonable operation of acceleratin/deceleration control of the engine along some specified schedules. Finally, we define a simple engine operation envelope, and select some evaluation points that are important in the controller performance testing. The effectiveness of the usggested fuzzy control strategy is illustrated by computer simulations.