Proceedings. IEEE International Symposium on Computer Aided Control System Design
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MathML in Polynomial Toolbox for Matlab
- Trang 284-286
This paper reports on a useful application of MathML to web presentation and export/import of polynomial matrices from/to the Polynomial Toolbox for Matlab/spl trade/. Two Matlab functions are described that can be used both for high quality visualization of polynomial matrices on web and for data exchange between Polynomial Toolbox and other software packages that compute with polynomial matrices......
#Polynomials #MATLAB #Computer languages #Packaging #Algebra #XML #Displays #Cybernetics #Application software #Data visualization
An optimisation algorithm for designing fixed-structure controllers using the QFT method
- Trang 157-162
We propose a simple optimisation algorithm for designing fixed-structure controllers for highly-uncertain plants. The method can be used to automate the loop-shaping step of the quantitative feedback theory (QFT) design procedure and guarantees robust stability and performance to the feedback loop for all parameters in the plant's uncertainty set. To avoid over-designing the system, the algorithm ......
#Design optimization #Algorithm design and analysis #Uncertainty #Frequency #Feedback #Robustness #Robust control #Robust stability #Design methodology #Automatic control
2002 IEEE International Symposium on Computer Aided Control Systems Design. Proceedings (Cat. No.02TH8612)
- 2002
Presents the front cover of the proceedings record.
Algorithm for computer aided optimal control system design
- Trang 187-192
The paper describes a new algorithm of optimal control system design for a linear, time-invariant, single-input single-output plant. The proposed algorithm has low computational complexity, high stability and possesses the clear physical sense of the existence conditions of the design problem solution. The reference (command) signal and disturbances can include random and regular components. The a......
#Optimal control #Polynomials #Riccati equations #Control systems #Least squares methods #Computational complexity #Stability #Algorithm design and analysis #Laplace equations #Radio control
LFT-based uncertainty modelling and /spl mu/-analysis of the HIRM+ RIDE flight control law
- Trang 242-247
This paper considers the problem of generating LFT-based uncertainty models for the robustness analysis of the HIRM+ aircraft using the structured singular value /spl mu/. Robustness properties of the RIDE controller are evaluated according to criteria currently in use by the European aircraft industry for the clearance of flight control laws. The proposed analysis approach is shown to be both rig......
#Uncertainty #Aerospace control #Robust control #Stability #Automatic control #Frequency #Military aircraft #Mathematical model #Testing #Instruments
On the computation of the maximal structured singular value for aeronautical applications
- Trang 254-259
This paper considers the necessary transformations and the computational issues associated with the determination of the maximal structured singular value, /spl mu//sub max/ without the use of a frequency gridding strategy. It is shown that, for the case of purely real model perturbations, convergence difficulties exist in determining bounds on /spl mu//sub max/ using existing Matlab software. A n......
#Frequency #Robustness #Aircraft #Uncertainty #Testing #Algorithm design and analysis #Application software #Grid computing #Mathematical model #Certification
A multiobjective optimisation-based software environment for control systems design
- Trang 7-14
This paper describes a software environment, called MOPS (multiobjective parameter synthesis), which supports the control engineer in setting up his design problem as a properly formulated multiobjective optimisation task. To this end, MOPS offers a basic control system criteria library, a generic multi-model structure for multi-disciplinary problems and a generic multi-case structure for robust c......
#Design optimization #Control systems #Distributed computing #Control system synthesis #Design engineering #Software libraries #Robust control #Visualization #Monitoring #Computational modeling
A control frequency selection procedure for frequency domain autotuning methods on PID controllers
- Trang 139-144
Classical PID controller tuning methods in the frequency domain have as their fundamental target the achievement of a certain phase margin or gain margin at a control frequency (w/sub c/). In both cases the task of w/sub c/ selection is key due to the fact that the control system stability and bandwidth are fully dependent on it.. The classical methodology can produce unstable systems if w/sub c/ ......
#Frequency domain analysis #Three-term control #Control systems #Control system synthesis #Tuning #Regulators #Equations #Frequency synthesizers #Design engineering #Stability
LFT representation of a longitudinal perturbed aircraft model by flatness approach
- Trang 230-235
In this paper, an linear fractional transformations (LFT) model representing, the dynamic of the gap between a nominal model and a perturbed model of a longitudinal aircraft fighter along a trajectory is given. The proposed approach is based on a simplified model used to determine a nominal trajectory and corresponding input. This simplified nonlinear model is a flat nonlinear system. As the measu......
#Aerodynamics #Nonlinear dynamical systems #Military aircraft #Nonlinear systems #Open loop systems #Automatic control #State-space methods #Power system modeling #Stability #Engines
Numerical software in SLICOT for low order controller design
- Trang 51-56
We describe the model and controller reduction software recently developed for the control and systems library SLICOT. Based on the latest algorithmic developments, a powerful collection of Fortran 77 subroutines has been implemented to cover the relative error and frequency-weighted model reduction, as well as special controller reduction approaches. The new model and controller reduction routine......
#Mathematical model #Power system modeling #Control system synthesis #Software libraries #Algorithms #Error correction #Frequency #Reduced order systems #Power system reliability #Software tools