Models of multi-alternative control and decision-making in complex systems

Podvalny, S. L.; Vasiljev, Eugeny; Барабанов, В Ф

doi:10.1134/s0005117914100166

Cited by 30 publications

(7 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This circumstance determines the possibility of the subsequent choice of one of the obtained solutions according to additional criteria that are not taken into account in the formal setting of the problem. In the general case, this possibility allows proceeding to the formulation of a multi-alternative synthesis problem [22][23][24][25][26].…”

Section: Methods Verification and Discussion Of Resultsmentioning

confidence: 99%

Modal synthesis of precision control systems

2020

View full text Add to dashboard Cite

The problem of synthesis of precision modal control systems is considered. It is noted that a common approach to solving this problem is to consistently meet the requirements for the nature of the transient process and for the indicators of its accuracy. This approach to synthesis is faced with the need to make design decisions under incomplete conditions. In practice, this circumstance leads to obtaining synthesis results with undesirable deviations from technical requirements. When designing precision control systems, such deviations are unacceptable. To eliminate the difficulties that arise, a transition to interval methods for formulating and solving modal synthesis problems is proposed. The theoretical possibility of the interval approach is based on the excessive variety of possible placement of eigenvalues in the spectrum of the characteristic matrix of the system. An example of an interval synthesis of a system with a modal controller and additional output feedback is considered. The restrictions on the spectrum of the specified matrix are formed, which determine the fulfillment of the requirements for the monotonicity of the transient process, the regulation time and the accuracy of the response to harmonic influences. It is noted that the variety of solutions obtained creates the preconditions for a multi-alternative approach to modal synthesis of systems.

show abstract

Section: Methods Verification and Discussion Of Resultsmentioning

confidence: 99%

Modal synthesis of precision control systems

2020

View full text Add to dashboard Cite

show abstract

“…In accordance with the systematic approach to solving the problem [25][26][27] and the laws of conservation of energy, mass and momentum [28,29] on the section of the main line between CS1 and CS2, we compose: equation (1) for the energy of one mole of gas at the beginning and at end of the pipeline; condition (2) of continuity; expression (3) for changing the amount of gas movement:…”

Section: Simulation Of the Initial State Of The Gas Pipelinementioning

confidence: 99%

Predicting Accident Modes in a Gas Pipeline with Incomplete Parameters

Podvalny

Куцова²,

Vasiljev

2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The paper solves the problem of predicting the emergency states of gas pipelines in cases where the initial parameters of the pipeline are not fully known a priori and can change during operation. The coefficient of heat transfer from gas to the external medium and the coefficient of internal viscous friction of hydraulic resistance are considered as such parameters. The theoretical calculation of these coefficients with sufficient accuracy for practice is very difficult due to the significant uncertainty of the actual conditions of heat transfer along the route and the current state of the pipeline. To solve this problem, a mathematical model of a steady gas flow in a pipeline is proposed, which is based on the assumptions about the polytrophic nature of the gas, as well as the non-isentropic and nonadiabatic nature of its flow. Together with the model, a method for identifying undefined coefficients has been developed. The problem of building the corresponding computational procedures with unknown boundary conditions is solved. An analysis of emergency states of a gas pipeline for cases of complete rupture and partial destruction of its wall was carried out by means of numerical modeling. Examples of using the developed model for predicting emergency states of gas pipelines are given.

show abstract

“…In this work the following principles are offered [2]: − the principle of variety and division of functions; − the principle of a multilevel control structure; − the principle of a modularity, all of them forming the general concept of multialternative control (from Latin alternare -to alternate) [3,4].…”

Section: Definition Of a Problemmentioning

confidence: 99%

Multi-alternative control of large systems

Podvalny

Vasiljev

2018

MATEC Web Conf.

View full text Add to dashboard Cite

Abstract. The article deals with analysis of evolutionary concept of control of large systems -multialternativeness. Based on the biocybernetical approach to the task we are revealing information components of this concept, which is formulated in the following 3-M principles: multilevel structure is implementing in complex systems as the property of homeostasis; multi-version of algorithms and separation of control functions for the adaptive systems control; modularity as guarantee for this diversity.

show abstract

Models of multi-alternative control and decision-making in complex systems

Cited by 30 publications

References 2 publications

Modal synthesis of precision control systems

Modal synthesis of precision control systems

Predicting Accident Modes in a Gas Pipeline with Incomplete Parameters

Multi-alternative control of large systems

Contact Info

Product

Resources

About