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Controllers, observers, and applications thereofController scaling and parameterization are described. Techniques that can be improved by employing the scaling and parameterization include, but are not limited to, controller design, tuning and optimization. The scaling and parameterization methods described here apply to transfer function based controllers, including PID controllers. The parameterization methods also apply to state feedback and state observer based controllers, as well as linear active disturbance rejection (ADRC) controllers. Parameterization simplifies the use of ADRC. A discrete extended state observer (DESO) and a generalized extended state observer (GESO) are described. They improve the performance of the ESO and therefore ADRC. A tracking control algorithm is also described that improves the performance of the ADRC controller. A general algorithm is described for applying ADRC to multi-input multi-output systems. Several specific applications of the control systems and processes are disclosed.
Document ID
20110023517
Acquisition Source
Glenn Research Center
Document Type
Other - Patent
Authors
Gao, Zhiqiang
Miklosovic, Robert
Radke, Aaron
Zhou, Wankun
Zheng, Qing
Date Acquired
August 25, 2013
Publication Date
November 15, 2011
Subject Category
Mathematical And Computer Sciences (General)
Funding Number(s)
CONTRACT_GRANT: NGT3-52387.
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-8,060,340
Patent Application
US-Patent-Appl-SN-12/067,141

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