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ANALYSIS AND DESIGN OF FEEDBACK CONTROL SYSTEMS WITH TRACKING ERRORS SQUARE
Author(s) -
Tsay TainSou
Publication year - 2007
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1111/j.1934-6093.2007.tb00419.x
Subject(s) - control theory (sociology) , servomechanism , robustness (evolution) , tracking error , nonlinear system , control engineering , loop gain , control system , servo , computer science , tracking (education) , feedback loop , robust control , engineering , control (management) , psychology , pedagogy , biochemistry , chemistry , physics , electrical engineering , computer security , quantum mechanics , artificial intelligence , voltage , gene
In this study, a command tracking error square control scheme is first proposed for analysis and design of feedback control systems. One of the tracking errors is low‐pass filtered and used in the feedback loop for gain adaptation; the other is used in the forward loop for command tracking control. The overall systems are nonlinear feedback systems, and can be reconfigured to an automatic gain control (AGC) loop with command tracking error input. The stability and robustness of the controlled systems are verified by time response, frequency response, and large parameter variation testing with a simple illustrating example and are finally applied to a complicated electro‐hydraulic velocity servo system with large load disturbance.