NDLI: Symbolic computations: an overview and application to controller design

Content Provider	IEEE Xplore Digital Library
Author	Chetty, M. Dabke, K.P.
Copyright Year	1999
Description	Author affiliation: Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, Vic., Australia (Chetty, M.)
Abstract	Conventional 'numerical' simulation programs fail to provide, in explicit form, the necessary and/or sufficient stability conditions for a system. In addition, these programs require more time for performing simulations than do the 'symbolic' ones. It is shown in this paper that engineers can apply in a systematic manner, a general computer algebra system like MAPLE V(R) to control system investigations. Applications of symbolic computation will not only provide explicit equations but also excellent numerical simulations, enhanced accuracy, performance and precision. The methodology for controller design using symbolic algebra is explained with the help of a PID controller and a second order plant. The entire analysis is carried out using the MATLAB symbolic algebra toolbox that supports MAPLE V(R). Stability conditions in explicit form have been obtained for the controller gains K/sub p/, K/sub d/ and K/sub i/. As an application of the design methodology, an example of the design of a controller for a synchronous generator feeding power to a power system is considered. Further, eigenvalue sensitivity to the system parameters has also been investigated.
Starting Page	451
Ending Page	456
File Size	514762
Page Count	6
File Format	PDF
ISBN	0780352564
DOI	10.1109/IDC.1999.754199
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-02-08
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algebra Computational modeling Numerical simulation Stability Control systems Design methodology Application software Computer applications Equations Three-term control
Content Type	Text
Resource Type	Article

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