Diagonal Dominance for Flight Control Systems of Canard Aircraft in Finite Frequency Range
作者单位：College of Information Science and Engineering Northeastern University State Key Laboratory of Synthetical Automation for Process Industry
会议名称：《第25届中国控制与决策会议》
主办单位：IEEE;NE Univ;IEEE Ind Elect Chapter;IEEE Harbin Sect Control Syst Soc Chapter;Guizhou Univ;IEEE Control Syst Soc;Syst Engn Soc China;Chinese Assoc Artificial Intelligence;Chinese Assoc Automat;Tech Comm Control Theory;Chinese Assoc Aeronaut;Automat Control Soc;Chinese Assoc Syst Simulat;Simulat Methods & Modeling Soc;Intelligent Control & Management Soc
会议日期：2013年
学科分类：08[工学] 081105[工学-导航、制导与控制] 0811[工学-控制科学与工程]
基 金：supported in part by the Funds of National Science of China (Grant No.60904010, No.60974043) the Program for New Century Excellent Talents in University (NCET-11-0072) the Fundamental Research Funds for the Central Universities (No.N110804001) China Postdoctoral Science Foundation (No.20100470074) China Postdoctoral Science Foundation Special Funded Project (No.201104608) Creative Research Groups of China (No.60821063) National 973 Program of China (Grant No.2009CB320604) the 111 Project (B08015),the 985 fund and Postdoctoral Science Foundation of Northeastern University, China
关 键 词：Diagonal dominance frequency domain inequality GKYP Lemma linear matrix inequalities (LMIs).
摘 要：This paper presents a new method for determining a constant precompensator for reducing the effects of interactions of the flight control systems in Canard Aircraft. However, the previous methods achieve diagonal dominance either at a certain suitable frequency or across the entire frequency domain. Taking the practical engineering situation into consideration, it is necessary to achieve diagonal dominance among a specific section instead of the whole of the frequency domain. This paper combines the LMIs and the Generalized KYP Lemma to obtain a new method to solve the problem. The algorithm is then modified to reduce the conservatism by the introduction of a path-shaping matrix. The path-shaping matrix enables a designer to find an optimal precompensator to achieve a specific forward path structure and a satisfactory output response. The algorithm is applied to a Canard Aircraft flight control system. Simulations show the new approach can more effectively decouple the Canard Aircraft system than other approaches.