Dynamical correction of control laws for marine ships’ accurate steering

Veremey, Evgeny I.

doi:10.1007/s11804-014-1250-1

Cited by 24 publications

(32 citation statements)

References 3 publications

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“…are located in open unit disk, and ) (z K represents a dynamical corrector, providing desired filtering features. Similarly to Veremey [6], we can demonstrate that characteristic polynomial of the closed-loop system eqns (5) and (32) is a product of the polynomials…”

Section: R D  Presents a Wave With The Central Frequencymentioning

confidence: 60%

“…4 OBSERVER WITH MULTIPURPOSE STRUCTURE Problem of polyharmonical disturbance suppression is solved, but it is necessary to provide eqn (9) and maximize the value 1 J simultaneously. These demands make impossible application of the approaches, suppressing any constant disturbance, such as PID-controller or speed control law [5], [7]. In accordance to eqn (7), )…”

Section: R D  Presents a Wave With The Central Frequencymentioning

confidence: 99%

“…One of the ways to construct it is repeated modal synthesis procedure [4], but there is a more convenient approach based on the synthesis of the fault detection observer in multipurpose structure, described, e.g. in Veremey [5], [6]…”

Section: R D  Presents a Wave With The Central Frequencymentioning

confidence: 99%

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MARINE SHIPS’ CONTROL FAULT DETECTION BASED ON DISCRETE H₂-OPTIMIZATION

Veremey

Knyazkin

2019

WIT Transactions on the Built Environment

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This paper is devoted to the problem of the H2-optimal discrete observer-filter, meant for detection of slowly varying additive faults in marine ship control processes. Sensitivity of the observer to the external disturbance is to be minimized by the choice of its parameters. Fault detection is a hot area of research, but most of the published papers do not concern a case with initially given spectral features of external disturbances. External disturbances, which are considered in this research, can be presented as a sum of harmonic oscillations with given central frequency (sea wave disturbance) and a constant signal (ocean currents and wind). The novel discrete H2-optimization algorithm is proposed to solve the problem of polyharmonical disturbance suppression. This approach guaranties nonuniqueness of the optimal solution that often makes possible to provide additional useful properties, such as insensitivity of the residual signal to the constant external disturbance, i.e. its integral action. Let us note that it is possible (not always) only if at least two sensors are used. It is notable, that the observer-filter can be designed in a multipurpose structure consisting of basic and auxiliary observers and a dynamical corrector that makes possible the retuning of the basic item in real time on-board. The novel discrete algorithm of adaptive fault detection observer analytical design in a multipurpose structure is proposed, and its effectiveness is demonstrated by the numerical example of the fault detection process with implementation of the MATLAB package.

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Section: R D  Presents a Wave With The Central Frequencymentioning

confidence: 60%

Section: R D  Presents a Wave With The Central Frequencymentioning

confidence: 99%

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MARINE SHIPS’ CONTROL FAULT DETECTION BASED ON DISCRETE H₂-OPTIMIZATION

Veremey

Knyazkin

2019

WIT Transactions on the Built Environment

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“…The system of automatic heading control for surface vessel's steering was proposed in [13]. The main part of the ACS is the unit of dynamic adjustments designed to counteract the disturbance of Computer sciences and mathematics waves, which is synthesized on the basis of H 2 -optimization theory.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Tasks Statement for Modern Automatic Control Theory of Underwater Complexes With Flexible Tethers

Dudykevych

Blintsov

2016

EUREKA: Physics and Engineering

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The definition of a new class of control objects is proposed. It is an underwater complex with flexible tethers (UCFT) for which there is the need to automate motion control under uncertainty and nonstationarity of own parameters and external disturbances. Classification of marine mobile objects and characteristics of the flexible tethers as UCFT elements is given. The basic UCFTs configurations that are used in the implementation of advanced underwater technologies are revealed. They include single-, double- and three-linked structures with surface or underwater support vessels and self-propelled or towed underwater vehicles. The role of mathematical modeling in tasks of motion control automation is shown. The tasks of UCFT mathematical modeling are formulated for synthesis and study of its automatic control systems. Generalized structures of mathematical models of UCFT basic elements are proposed as the basis for the creation of simulating complex to study the dynamics of its motion. The tasks of UCFT identification as a control object are formulated. Their consistent solution will help to obtain a UCFT mathematical model. The basic requirements for UCFT automatic motion control systems are determined. Their satisfaction will ensure implementation of selected underwater technology. Areas of development of synthesis methods of UCFT automatic control systems are highlighted.

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“…This implies the use of more advanced controller for the autopilot design. In this work we propose using the controller of the special structure, called multipurpose control law ( [1]) for the task of the VWDELOL]DWLRQ RI WKH $&9 ¶V \DZ DQJOH. One of the main advantages of such structure is certain flexibility.…”

Section: Introductionmentioning

confidence: 99%

Multipurpose stabilization of the advanced marine surface crafts

Sevostyanov

Veremey

2016

ITM Web of Conferences

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Abstract. Advanced marine surface crafts, such as SWATHs, catamarans or hovercrafts become more and more popular for a great range of various tasks. They usually operate at much higher speed than conventional ships. Moreover, in the open sea there are a lot of requirements and restrictionV FRQFHUQLQJ WKH TXDOLW\ RI VXFK FUDIWV ¶ dynamics, especially in case of the wind or waves. This paper considers application of the control law with a special multipurpose structure for autopilot design for amphibious air cushion vehicles. Such control law allows to decompose the autopilot task into simpler optimization subtasks. Efficiency of this approach is shown in the task of stabilizing yaw angle of the air cushion vehicle in the different weather conditions.

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Dynamical correction of control laws for marine ships’ accurate steering

Cited by 24 publications

References 3 publications

MARINE SHIPS’ CONTROL FAULT DETECTION BASED ON DISCRETE H₂-OPTIMIZATION

MARINE SHIPS’ CONTROL FAULT DETECTION BASED ON DISCRETE H₂-OPTIMIZATION

Tasks Statement for Modern Automatic Control Theory of Underwater Complexes With Flexible Tethers

Multipurpose stabilization of the advanced marine surface crafts

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Dynamical correction of control laws for marine ships’ accurate steering

Cited by 24 publications

References 3 publications

MARINE SHIPS’ CONTROL FAULT DETECTION BASED ON DISCRETE H2-OPTIMIZATION

MARINE SHIPS’ CONTROL FAULT DETECTION BASED ON DISCRETE H2-OPTIMIZATION

Tasks Statement for Modern Automatic Control Theory of Underwater Complexes With Flexible Tethers

Multipurpose stabilization of the advanced marine surface crafts

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Product

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MARINE SHIPS’ CONTROL FAULT DETECTION BASED ON DISCRETE H₂-OPTIMIZATION

MARINE SHIPS’ CONTROL FAULT DETECTION BASED ON DISCRETE H₂-OPTIMIZATION