scholarly journals Mathematical modeling of technological process in formalin production

2021 ◽  
Vol 2094 (2) ◽  
pp. 022052
Author(s):  
T V Botirov ◽  
Sh B Latipov ◽  
B M Buranov
Keyword(s):  
Mathematical Modeling ◽  
Adaptive Control ◽  
Control System ◽  
Control Systems ◽  
Technological Process ◽  
Specific Consumption ◽  
Adaptive Control System ◽  
Transition Processes ◽  
Adaptive Control Systems ◽  
Mass Fractions

Abstract Methods and algorithms of the sustainable synthesis of adaptive control systems for the technological process of formalin production have been proposed in this article. Parameters of the regulator are estimated in the developed adaptive control system, i.e. the purpose of adaptation is reduced to the estimation of coefficients of the regulator providing the specified behavior of the system. The results obtained and the analysis of transition processes based on the modeling of the control system showed that with adaptive control, mass fractions of formaldehyde and methanol in formalin are held within 36.5÷37.5% and 0.7÷0.9% respectively, while the specific consumption of the methanol decreases by 3÷4%, which allows the process in mode close to the optimal.

scholarly journals Design of components of adaptive control system of conveyor transport

2021 ◽  
pp. 26-33
Author(s):  
Tetiana Pluhina ◽  
Oleksandr Yefymenko ◽  
Vladimir Suponyev ◽  
Nina Nikolaichuk
Keyword(s):  
Adaptive Control ◽  
Control System ◽  
Control Systems ◽  
Intelligent Control ◽  
Adaptive Systems ◽  
Evaluation Method ◽  
Design System ◽  
Adaptive Control System ◽  
Adaptive Control Systems ◽  
External Conditions

The task design of components of adaptive control system of conveyor transport was carried out. The analysis of existing researches and publications, in which the main problem is highlighted, namely that uncertainty and external conditions during operation leads to the need to introduce new components, functions of the actuator conveyor and ensuring the adaptation based on intelligent control. As a result of the existing researches analysis and publications, the purpose of research is set, namely: increasing the efficiency of the conveyor line control system by designing the components of the adaptive control system that implement the algorithm of adaptation in conditions of uncertainty. The concept of а multicriteria choice, set of indicators for assessing the properties of a design system and its total effect have been substantiated. The results of the research are as follows: structured the functions of adaptive systems; the basic modes of development of adaptive control systems and their realization in industrial conditions are set, for that purpose, the mathematical support for exposing the vagueness of control worked out by ACIT KHNADU is used; the principles of development of adaptive control systems, technical support and requirements produced to the basic components of system (subsystems) are proposed. The practical value lies in the fact that the choice of components control systems makes it possible to improve the accuracy and the possibility of data correction. The originality lies in the use of multicriteria evaluation method and parameter optimization. Models are universal, will allow to select a set of technical means of CT control system according to the selected criteria and restrictions of each type of elements.

scholarly journals A Novel Model for Adaptive Control Systems A State Machine Approach

2010 ◽  
Vol 5 (3) ◽  
pp. 292
Author(s):  
Fernando Valles-Barajas
Keyword(s):  
Adaptive Control ◽  
Control System ◽  
Control Systems ◽  
Modeling Language ◽  
State Machines ◽  
Adaptive Control System ◽  
Adaptive Control Systems ◽  
Indirect Adaptive Control ◽  
High Level ◽  
Novel Model

In this paper a new model, based on state machines, of adaptive control systems is presented. Due to its high level of expressiveness, UML was chosen as the modeling language. In particular the paper presents a model of an indirect adaptive control system. This model can be used to document and to have a better understanding of adaptive control systems.

scholarly journals DESIGN OF THE CONTROL SYSTEM BY MOVEMENT OF ROBOTS MOBILE GROUP IN CONDITIONS OF UNCERTAINTY

2018 ◽  
Vol 22 (4) ◽  
pp. 112-122
Author(s):  
A. R. Gaiduk ◽  
I. A. Kalyaev ◽  
S. G. Kapustyan ◽  
I. O. Shapovalov
Keyword(s):  
Adaptive Control ◽  
Control System ◽  
Mathematical Models ◽  
Mobile Robots ◽  
Control Systems ◽  
Transfer Functions ◽  
Digital Processing ◽  
Suggested Method ◽  
Analytical Design ◽  
Adaptive Control Systems

Many controlled plants, in particular mobile robots, solve various tasks in a priori uncertain conditions. In this connection their mathematical models necessary for creation of qualitative control systems are unknown. Therefore development of design methods of adaptive control systems is actuality. The big uncertainty of this control problem makes application of adaptive systems with identification by the most expedient. In article the new analytical design method of adaptive control systems by movement of mobile robots group in the uncertainty conditions is offered. This method is focused on the decision of a task of identification of the current mathematical models of robots with the subsequent design of a control system by movement of each robot. The suggested method can be realized automatically as required. It is developed on a basis of the markov method of identification, the method of analytical design of systems with control on output and impacts, and also the standard normalized transfer functions are used. As a whole this method allows to design of the adaptive control systems with desirable qualitative properties. Trial step functions of the small intensity and the original method of digital processing of the information are used at identification. Property of system invariancy of the markov parameters and their direct connection with factors of the discrete dynamic systems transfer functions are a basis of the method of digital processing of the information. It is supposed, that the mobile robots are full or can be stabilized at all possible values of their order and parameters. The suggested method can be used for creation of control systems by the various technical plants functioning in conditions of uncertainty.

ACS-Lite Algorithmic Architecture: Applying Adaptive Control System Technology to Closed-Loop Traffic Signal Control Systems

2003 ◽  
Vol 1856 (1) ◽  
pp. 175-184 ◽  
Author(s):  
Felipe Luyanda ◽  
Douglas Gettman ◽  
Larry Head ◽  
Steven Shelby ◽  
Darcy Bullock ◽  
...  
Keyword(s):  
Adaptive Control ◽  
Control System ◽  
Control Systems ◽  
Closed Loop ◽  
Signal Control ◽  
Traffic Signal Control ◽  
Adaptive Control System ◽  
Traffic Conditions ◽  
Run Time ◽  
Traffic Signal Control Systems

ACS-Lite is being developed by FHWA to be a cost-effective solution for applying adaptive control system (ACS) technology to current, state-of-the-practice closed-loop traffic signal control systems. This effort is intended to make ACS technology accessible to many jurisdictions without the upgrade and maintenance costs required to implement ACS systems that provide optimized signal timings on a second-by-second basis. The ACS-Lite system includes three major algorithmic components: a time-of-day (TOD) tuner, a run-time refiner, and a transition manager. The TOD tuner maintains plan parameters (cycle, splits, and offsets) as the long-term traffic conditions change. The run-time refiner modifies the cycle, splits, and offsets of the plan that is currently running based on observation of traffic conditions that are outside the normal bounds of conditions this plan is designed to handle. The run-time refiner also determines the best time to transition from the current plan to the next plan in the schedule, or, like a traffic-responsive system, it might transition to a plan that is not scheduled next in the sequence. The transition manager selects from the transition methods built in to the local controllers to balance the time spent out of coordination with the delay and congestion that is potentially caused by getting back into step as quickly as possible. These components of the ACS-Lite algorithm architecture are described and the similarities and differences of ACS-Lite with state-of-the-art and state-of-the-practice adaptive control algorithms are discussed. Closed-loop control system characteristics are summarized to give the context in which ACS-Lite is intended to operate.

scholarly journals ADAPTIVE CONTROL SYSTEM OF THE MACHINING PROCESS

2021 ◽  
pp. 31-34
Author(s):  
Zh. S. Tikhonova ◽  
P. A. Chemogonov ◽  
E. M. Frolov ◽  
D. V. Krainev
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Adaptive Control ◽  
Control System ◽  
Technological Process ◽  
Software Package ◽  
Adaptive System ◽  
Machining Process ◽  
Adaptive Control System ◽  
The Finite Element Method

An adaptive system is proposed that allows analyzing the parameters of the technological process through the use of sensors of force, power, torque. The design of the technological part of the proposed system in the form of a dynamometric mandrel is presented, taking into account the results of modeling and calculation by the finite element method in the SolidWorks software package.

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