Analyzing structural properties of composite system in frequency domain over F(z) with computer

Author

Liu, Guanmin ; Lu, Kaisheng ; Guo, Tianquan

Author_Institution

Dept. of Marine Autom., Wuhan Univ. of Technol., Wuhan, China

fYear

2010

fDate

26-28 May 2010

Firstpage

934

Lastpage

937

Abstract

The signal flow diagram is inputted into the computer and then transfer function matrix is derived by the Mason rule. Two scenarios are taken to analyze the structural properties of the composite systems. One is to get the state and output equations by the subsystems´ transfer function matrices and their connections and then to estimate the structural controllability (observability) according to the rank of the controllable (observable) matrix. The other way is to analyze the co-primeness of the denominators or nominators of the subsystems´ transfer function matrices. The input and topology analysis of the signal flow diagram are realized in Visual C++ 6.0 and the calculation of the transfer function matrices and analysis of structural properties are performed with Matlab symbolic computing.

Keywords

control engineering computing; controllability; linear systems; mathematics computing; observability; signal flow graphs; topology; visual languages; Mason rule; Matlab symbolic computing; Visual C++ 6.0; composite system structural properties; controllable matrix; frequency domain; observable matrix; signal flow diagram; structural controllability estimation; structural observability estimation; subsystem transfer function matrices; topology analysis; transfer function matrix; Controllability; Equations; Frequency domain analysis; Interconnected systems; Observability; Performance analysis; Signal analysis; State estimation; Topology; Transfer functions; F(z); composite system; frequency domain; rational function system; signal flow diagram; structural controllability (observability);

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (CCDC), 2010 Chinese

Conference_Location

Xuzhou

Print_ISBN

978-1-4244-5181-4

Electronic_ISBN

978-1-4244-5182-1

Type

conf

DOI

10.1109/CCDC.2010.5498087

Filename

5498087