ALGORITHMS FOR THE ROBUST PROPERTIES ANALYSIS OF A MULTI-PURPOSE CONTROL LAWS OF MOVING OBJECTS
Journal Title: Современные информационные технологии и ИТ-образование - Year 2018, Vol 14, Issue 2
Abstract
The problems of analyzing robust properties for control systems of moving objects are of significant importance in modern control theory. This is because the mathematical models used in the synthesis of control laws are almost always inaccurate and only approximately represent the dynamics of moving objects. At the same time, one of the requirements for control systems in practice is the preservation of their dynamic properties, when the parameters and structure of mathematical models can vary within certain limits. If the developed control system does not have this property, then it can not be considered workable. The article deals with the analysis of robust stability and robust quality for multi-purpose control laws of moving objects. The multi-purpose approach is chosen as the basis for designing the control system, since it allows to provide the desired quality of the control system operation in various regimes, including under the influence of external disturbances. In this case, the choice of tunable elements of the multi-purpose control law determines the robust properties of the closed-loop system. The formalized statement of the problem of robust properties analysis for control laws with a multi-purpose structure is considered taking into account the limited admissible variations of the mathematical model. Frequency-domain approach to the analysis of robust stability and optimization approach to the analysis of robust performance are proposed. On the basis of the obtained results, computational algorithms for the analysis of robust properties are formed. As a practical example, the system of ship motion control is considered. The analysis of its robust properties is performed taking into account the admissible variation of the linear model coefficients in the given ranges. Examples of simulation modeling in MATLAB environment are demonstrated.
Authors and Affiliations
Margarita Sotnikova, Anastasiia Tomilova
Keywords
Related Articles
- EP ID EP519215
- DOI 10.25559/SITITO.14.201802.374-381
- Views 106
- Downloads 0
VECTORIZATION OF SMALL-SIZED SPECIAL-TYPE MATRICES MULTIPLICATION USING INSTRUCTIONS AVX-512
Modern software packages for supercomputer calculations require a large amount of computing resources. At the same time there are new hardware architectures that open up new opportunities for program code optimizing. The...
PARALLEL IMPLEMENTATION OF SYMMETRIC HORIZONTAL DISTRIBUTION OF DATA ON THE NETWORK TECHNOLOGIES BASIS
The approach to the construction of software and hardware complexes for implementing a symmetric horizontal distribution of tables in relational databases is considered. To solve this problem, we propose to use standard...
AUTOMATION OF DISTRIBUTION OF STUDENTS BETWEEN GRADUATE SUPERVISORS WITH APPLICATION OF TWO-SIDED MATCHING MODEL
The article deals with an approach for modeling and software support of distribution of students between graduate supervisors at large graduate department. The approach is based on the stable matching problem and the Gal...
INTERACTIVE METHODS OF CONSTRUCTING ON THE PLANE: THE LOCUS OF POINTS
The article focuses on the problem of how to systematize secondary school students’ knowledge in Geometry while assimilating a concept “Locus of Points”. The scientific concept acts as an integrated didactic unit that co...
THE ALGORITHMS FOR CONSTRUCTING THE BOUNDARIES OF THE STABILITY REGIONS OF LINEAR HAMILTONIAN SYSTEMS BY USING MATLAB
The article presents the main stages of the algorithm for constructing the stability regions of dynamical systems described by a linear Hamiltonian system of the form . The algorithm is based on the methods of the theory...