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A study of decoupling with skeleton matrix in two‐degree‐of‐freedom generalized minimum variance control
Author(s) -
Mori Yasuchika,
Takaki Akihiro
Publication year - 2011
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.21046
Subject(s) - decoupling (probability) , mimo , minimum variance unbiased estimator , control theory (sociology) , variance (accounting) , controller (irrigation) , tracking (education) , computer science , degree (music) , mathematics , matrix (chemical analysis) , sampling (signal processing) , control (management) , engineering , control engineering , statistics , telecommunications , artificial intelligence , mean squared error , physics , beamforming , pedagogy , business , composite material , biology , accounting , agronomy , detector , acoustics , psychology , materials science
There are many multi‐input multi‐output (MIMO) systems in chemical plants, and they have multiple time delays of different length in each input and output pair. This paper explains a two‐degree‐of‐freedom (2DOF) control system based on generalized minimum variance control (GMVC) for MIMO systems. It can improve the tracking performance with respect to the reference signals and the response properties for the disturbance. The states between the sampling period can be expressed by using the modified z transform to take account of multiple time delays. Additionally, a tracking controller is designed to decouple the plant. © 2011 Wiley Periodicals, Inc. Electr Eng Jpn, 176(1): 28–36, 2011; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/eej.21046