Directional change in multivariable LQG control with actuator failure

Bulletin of the Polish Academy of Sciences. Technical Sciences

D. HorlaCorresponding authorFaculty of Electrical Engineering, Poznan University of Technology, 3A Piotrowo St., 60-965 Poznan, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Faculty of Electrical Engineering, Poznan University of Technology, 3A Piotrowo St., 60-965 Poznan, Poland

关键词: Keywords: directional change;    actuator failure;    windup phenomenon;   

DOI  :  10.1515/bpasts-2017-0047

学科分类：工程和技术（综合）

来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science

【 摘 要 】

The paper presents the phenomenon of directional change in LQG control of multivariable systems with amplitude constraints, as well as the impact of the latter on control performance. The interplay of directional change of the computed control vector with control performance has been thoroughly investigated, and is a result of the presence of constraints imposed on the applied control vector for different proportions of the number of control inputs to plant outputs. The impact of directional change phenomenon on the control performance has been defined, stating that performance deterioration is not tightly coupled with preservation of direction of the computed control vector. The statement has been supported by numerous simulation results for different types of plants with different LQG controller parameters.

【 授权许可】

Unknown