Open source Ch Control System Toolkit and web-based control system design for teaching automatic control of linear time-invariant systems

2010 ◽  
Vol 21 (1) ◽  
pp. 95-112 ◽  
Author(s):  
Bo Chen ◽  
Yu-Cheng Chou ◽  
Harry H. Cheng
Keyword(s):  
Control System ◽  
Automatic Control ◽  
System Design ◽  
Open Source ◽  
Linear Time ◽  
Control System Design ◽  
Web Based ◽  
Linear Time Invariant ◽  
Linear Time Invariant Systems ◽  
Time Invariant

A Geometric Representation of Root Sensitivity

1994 ◽  
Vol 116 (2) ◽  
pp. 305-309 ◽  
Author(s):  
T. R. Kurfess ◽  
M. L. Nagurka
Keyword(s):  
Control System ◽  
System Design ◽  
Dynamic Systems ◽  
Linear Time ◽  
Sensitivity Function ◽  
Control System Design ◽  
Geometric Representation ◽  
Root Locus ◽  
Linear Time Invariant ◽  
Time Invariant

In this paper, we present a geometric method for representing the classical root sensitivity function of linear time-invariant dynamic systems. The method employs specialized eigenvalue plots that expand the information presented in the root locus plot in a manner that permits determination by inspection of both the real and imaginary components of the root sensitivity function. We observe relationships between root sensitivity and eigenvalue geometry that do not appear to be reported in the literature and hold important implications for control system design and analysis.

Teaching Automatic Control of Engineering Systems Using Open Source CH Control System Toolkit and Web-Based Design and Analysis System

2008 ◽  
Author(s):  
Bo Chen ◽  
Yu-Cheng Chou ◽  
Harry H. Cheng
Keyword(s):  
Control System ◽  
Automatic Control ◽  
System Design ◽  
Open Source ◽  
Control Systems ◽  
Control System Design ◽  
Engineering Systems ◽  
Web Based ◽  
Practical Engineering ◽  
Analysis System

Ch Control System Toolkit (CCST) is a software package for design and analysis of control systems. It is implemented as a class with member functions to run in the user-friendly C/C++ interpreter Ch. Based on the CCST, a Web-based Control System Design and Analysis System (WCDAS) has been developed. In this article, using CCST and WCDAS to teach automatic control of engineering systems is presented. Using CCST, students are able to write programs easily with a few lines of C/C++ code to solve practical engineering problems. By solving control system design and analysis problems in C/C++, the programming skills gained in the course are applicable to other areas of engineering. CCST and WCDAS are open source. Students are able to examine the source code to understand the implementation of theories and algorithms in software. Based on CCST and WCDAS, the Web-based Controller/Compensator Design Module (WCCDM) has also been developed for teaching and student learning. Using these Web-based tools, students can perform design and analysis of control systems interactively through a Web browser remotely. The CCST, WCDAS, and WCCDM have been used to teach an undergraduate course on Automatic Control of Engineering Systems at the University of California, Davis. All software packages and teaching materials for this course are available on the internet. They can be downloaded and modified to teach similar courses with different requirements.

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