基于对角占优的航空发动机多变量控制

李华聪; 吴志琨; 韩小宝

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基于对角占优的航空发动机多变量控制
李华聪¹, 吴志琨², 韩小宝³
1.西北工业大学动力与能源学院陕西西安710072;2.西北工业大学动力与能源学院陕西西安710073;3.西北工业大学动力与能源学院陕西西安710074

摘要:

提出了以对角占优为基础,结合线性矩阵不等式进行航空发动机多变量控制系统频域预补偿器的设计。该方法通过使用有界实引理,将多变量频域预补偿器的设计问题与线性矩阵不等式的求解方法相结合,以达到削弱航空发动机多变量控制系统强耦合的目的。仿真验证表明,该方法有效地削弱了通道间的耦合,降低了控制器的阶次。

关键词: 航空发动机线性矩阵不等式+ 对角占优+ 预补偿器

DOI：

分类号:V233.7

基金项目:

A multivariable control based on diagonal dominance for aeroengine

LI Hua-cong¹, WU Zhi-kun², HAN Xiao-bao³

1.School of Power and Energy,Northwestern Polytechnical Univ.,Xi’an 710072,China;2.School of Power and Energy,Northwestern Polytechnical Univ.,Xi’an 710073,China;3.School of Power and Energy,Northwestern Polytechnical Univ.,Xi’an 710074,China

Abstract:

A design method for pre-compensator in frequency domain of aeroengine multivariable control system based on diagonal dominance and the method of linear matrix inequalities(LMI) is presented.The conception of LMI and the design in frequency domain of diagonal dominance achieving pre-compensator are connected by bounded real lemma(BRL),and this method is aimed at reducing the effects of interactions in aeroengine multivariable systems.The improvement in reducing the interactions and the order of the controller is verified by simulation.

Key words: Aeroengine Linear matrix inequalities(LMI)+ Diagonal dominance+ Pre-compensator