Computational Alternative to a Gain Setting Procedure of Brown and Campbell

1990 ◽  
Vol 112 (3) ◽  
pp. 516-517
Author(s):  
L. Kitis
Keyword(s):  
Control System ◽  
Frequency Response ◽  
Numerical Method ◽  
Multiple Solutions ◽  
Closed Loop ◽  
Linear Control ◽  
Function Evaluation ◽  
Resonant Frequencies ◽  
Positive Roots ◽  
Roots Of A Polynomial

A numerical method for setting the gain of a linear control system to obtain a specified peak closed-loop frequency response amplitude is presented. The essential computational step in the algorithm is the calculation of all positive roots of a polynomial. This step provides the set of all possible resonant frequencies. A gain constant for each of these frequencies is then found by a simple function evaluation. The possibility of multiple solutions is demonstrated by an example.

scholarly journals Visualizing Non-Linear Control System Performance by Means of Multidimensional Scaling

2013 ◽  
Vol 8 (4) ◽  
Author(s):  
J. A. Tenreiro Machado
Keyword(s):  
Control System ◽  
Multidimensional Scaling ◽  
Performance Measures ◽  
System Performance ◽  
Numerical Experiments ◽  
Closed Loop ◽  
Time Response ◽  
Linear Control ◽  
Performance Indices ◽  
Controller Performance

This paper addresses the use of multidimensional scaling in the evaluation of controller performance. Several nonlinear systems are analyzed based on the closed loop time response under the action of a reference step input signal. Three alternative performance indices, based on the time response, Fourier analysis, and mutual information, are tested. The numerical experiments demonstrate the feasibility of the proposed methodology and motivate its extension for other performance measures and new classes of nonlinearities.

Application of A Spreadsheet Program to Control System Design

1992 ◽  
Vol 29 (1) ◽  
pp. 16-23 ◽  
Author(s):  
Yiu-Kwong Wong
Keyword(s):  
Control System ◽  
Feedback Control ◽  
Frequency Response ◽  
System Design ◽  
Control Systems ◽  
Closed Loop ◽  
Control System Design ◽  
Closed Loop System ◽  
Spreadsheet Program ◽  
Feedback Control Systems

Application of a spreadsheet program to control system design The Symphony spreadsheet program is applied to calculate the frequency response of feedback control systems. A design template which contains the necessary formulae was constructed so that very little knowledge of the program is required to obtain impressive results. The template becomes a powerful tool by providing a fast and efficient means of designing a stable closed-loop system as well as predicting its performance.

scholarly journals Visualizing Non-Linear Control System Performance by Means of Multidimensional Scaling

2011 ◽  
Author(s):  
J. A. Tenreiro Machado
Keyword(s):  
Control System ◽  
Multidimensional Scaling ◽  
System Performance ◽  
Numerical Experiments ◽  
Closed Loop ◽  
Linear Control ◽  
Performance Indices ◽  
Frequency Domains ◽  
Non Linear ◽  
Non Linear Systems

This paper addresses the use of multidimensional scaling in the evaluation of control system performance. Both linear and non-linear systems are analysed based on the closed loop time response under the action of a reference step input signal. Two alternative performance indices, based on the time and frequency domains, are tested. The numerical experiments demonstrate the feasibility of the proposed methodology and motivate its extension for other performance measures and a broader classes of non-linearities.

Closed loop auto control system software for Miniature Neutron Source Reactors (MNSRs)

Kerntechnik ◽  
2009 ◽  
Vol 74 (5-6) ◽  
pp. 280-285
Author(s):  
M. Iqbal ◽  
J. Qadir ◽  
T. K. Bhatti ◽  
Q. Abbas ◽  
S. M. Mirza
Keyword(s):  
Control System ◽  
Neutron Source ◽  
Closed Loop ◽  
System Software
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