scholarly journals RESEARCH OF THE PROGRAMMERS FOR CONTROL OF THE PERIODIC ACTION OBJECTS WITH NON-LINEAR TIME PROGRAM

2018 ◽  
Vol 10 (2) ◽  
Author(s):  
O. Klymenko ◽  
E. Krong ◽  
V. Tregub
Keyword(s):  
Control System ◽  
Comparative Analysis ◽  
Automatic Control ◽  
Automatic Control System ◽  
Food Production ◽  
Linear Time ◽  
Periodic Action ◽  
Single Loop ◽  
Quality Of Control

Not a few devices of food production work periodically and programmers are widely used to control these devices. Using logical devices that transfer between program sections can significantly improve the quality of control, but these methods are not sufficiently studied.The research is devoted to the development of a programmer for the implementation of programs with nonlinear time areas, containing logical devices in its structure. Single-loop and combined programmable automatic control system (ACS) with logical devices and without them were investigated and a comparative analysis of their work was performed.

scholarly journals Results of Laboratory Studies of the Automated Sorting System for Root and Onion Crops

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1257
Author(s):  
Alexey Dorokhov ◽  
Alexander Aksenov ◽  
Alexey Sibirev ◽  
Nikolay Sazonov ◽  
Maxim Mosyakov ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Technological Parameters ◽  
Post Harvest ◽  
Manual Sorting ◽  
Sorting System ◽  
Working Bodies ◽  
Automatic Removal

The roller and sieve machines most commonly used in Russia for the post-harvest processing of root and tuber crops and onions have a number of disadvantages, the main one being a decrease in the quality of sorting due to the contamination of working bodies, which increases the quantity of losses during sorting and storage. To obtain high-quality competitive production, it is necessary to combine a number of technological operations during the sorting process, such as dividing the material into classes and fractions by quality and size, as well as identifying and removing damaged products. In order to improve the quality of sorting of root tubers and onions by size, it is necessary to ensure the development of an automatic control system for operating and technological parameters, the use of which will eliminate manual sorting on bulkhead tables in post-harvest processing. To fulfill these conditions, the developed automatic control system must have the ability to identify the material on the sorting surface, taking into account external damage and ensuring the automatic removal of impurities. In this study, the highest sorting accuracy of tubers (of more than 91%) was achieved with a forward speed of 1.2 m/s for the conveyor of the sorting table, with damage to 2.2% of the tubers, which meets the agrotechnical requirements for post-harvest processing. This feature distinguishes the developed device from similar ones.

Automatic Regulating System Model of Thermal Power Plant Based on Single Loop Feedback Control

2014 ◽  
Vol 543-547 ◽  
pp. 580-584
Author(s):  
Gui Qiu Su ◽  
Chao Zhang
Keyword(s):  
Control System ◽  
Power Plant ◽  
Automatic Control ◽  
Production Process ◽  
Automatic Control System ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
System Model ◽  
Single Loop ◽  
Loop Feedback

The production process of the thermal power plant is transferring primary energy to secondary energy. Loss of energy is quite large for coal machine. When using air supply machine and other boiler auxiliary equipments, saving energy, reducing energy consumption is an important way to reduce the cost. This paper first analyzes the basic principle of energy transformations generation field and principle characteristics of thermal automatic control system during the production process. On the basis of energy saving and low cost framework, according to the single loop feedback construction, we establish automatic control system model of thermal power plant. Through comprehensive cloud generator we do simulation on thermal power enterprises, the result is significant. It shows that this model can provide scientific theoretical basis for the operation mode of power generation enterprises in a certain degree.

scholarly journals DEVELOPMENT OF STRUCTURAL SCHEMES AND OPERATION ALGORITHMS FOR THE AUTOMATIC CONTROL SYSTEM OF A MULTIFUNCTIONAL ENERGY COMPLEX

2021 ◽  
Vol 445 (1) ◽  
pp. 82-90
Author(s):  
G. Kalimbetov ◽  
A. Toigozhinovа ◽  
W. Wojcik
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Control Systems ◽  
Dynamic Control ◽  
Control Object ◽  
Control Device ◽  
Automatic Control Systems ◽  
Operating Modes ◽  
Quality Of Control

Among the promising automatic control systems, logical-dynamic control systems that change both the structure and parameters of the control device using switches formed on the basis of a certain logical algorithm have proven themselves well. The use of logical algorithms as part of MACS subsystems for complex technical objects makes it possible to increase the static and dynamic accuracy of control due to purposeful qualitative and quantitative changes in the control signal. This approach will give the control system fundamentally new properties that allow to fully take into account the nature and dynamics of the movement of the control object. When developing existing logical control algorithms, the issues of their application for multi-connected and multifunctional objects control were not considered. Common to existing logical algorithms is that when switching the structure and/or changing parameters, only the dynamics of its own subsystem is taken into account, which is unacceptable in the case of multi-connected dynamic object control, since cross-links have a significant impact on the quality of control. Thus, the problem of synthesis of logical algorithms for multi-connected objects control is an actual theoretical and applied problem. Despite the considerable amount of research conducted in this area, the application of logical algorithms for complex multidimensional objects control is not sufficiently considered, and there is no unified design concept for this type of MACS, taking into account the required quality of functioning in various operating modes. In this regard, there is a need to synthesize algorithms for logical multi-connected control that form control signals in order to coordinate the actions of all separate MACS subsystems in accordance with new external conditions and operating modes. The problem under consideration determined the purpose of this work and the research objectives.

Analysis of sustainability and quality of automatic control system of the object with delay

2017 ◽  
Vol 0 (3) ◽  
Author(s):  
Borys M. Politykin ◽  
Yurii H. Tenditnyi ◽  
N. V. Tenditnaia ◽  
Olha N. Korneliuk
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System

Research on Closed-Loop Control Algorithm of Pneumatic Clutch Based on Optimizing Engaged - Schedule

2014 ◽  
Vol 509 ◽  
pp. 213-217
Author(s):  
Xing Zhong Li ◽  
Yu Long Lei ◽  
Shao Hua Sun
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Control Algorithm ◽  
Simulation Analysis ◽  
Test Scheme ◽  
Loop Control ◽  
Stand Test ◽  
Clutch Engagement

According to the automatic control system of pneumatic AMT clutch, this paper proposes a novel PID control based on logical switch of clutch engagement index. The PWM control is used to make a control for the solenoid valve. And a controller is established by this control algorithm. The automatic control system of pneumatic AMT clutches modeling using the AMEsim software, related simulation analysis and modifying the control parameters of the controller. It is conducted stand test according to the test scheme for the clutch automatic control system. And the test data is record and made an analysis on. The control algorithm is verified by stand test, greatly improving the bonding quality of the clutch.

scholarly journals FORMULATION OF DESIGN TASKS OF TOWED UNDERWATER VEHICLES CREATION FOR SHALLOW WATER AND AUTOMATION OF THEIR MOTION CONTROL

2019 ◽  
Vol 2 ◽  
pp. 30-42 ◽  
Author(s):  
Oleksandr Blintsov ◽  
Volodymyr Sokolov ◽  
Pavel Kucenko
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Rotational Motion ◽  
Underwater Vehicle ◽  
Second Order ◽  
Design Stage ◽  
Control Law ◽  
Quality Of Control ◽  
High Dynamic

The towed underwater system is one of the fixed assets of the study of water areas. The effectiveness of its application depends on the characteristics laid at the design stage. The main task of the towed underwater vehicle (TUV) is the motion of technological equipment. Therefore, it is important to ensure the specified dynamic properties of the unit and automate the control of its motion. In the paper the typical forms of the unit are analyzed, the features of their control at small depths are set. TUV control is carried out in conditions of uncertainty. Therefore, the design of an automatic control system (ACS) for its motion is proposed to be carried out using the appropriate synthesis method – the method of minimizing local functionals. The control law contains integral components and, under the constraints of control actions, generates the problem of integral saturation. To eliminate the integral saturation in the work, the condition integration method is improved. On its basis, the control law and the structure of the controller of high dynamic accuracy of a second-order nonlinear object are synthesized. It is the basis for the synthesis of ACS controlled degrees of freedom of the underwater vehicle in conditions of uncertainty. Usually TUVs contain two degrees of mobility. Translational motions of the unit are generated by changing its angular orientation. The paper synthesizes TUV controllers of pitch and roll based on the control law of the second order. Each control signal of the unit can affect both the roll and the pitch of the unit, which leads to decrease in the quality of control in general. To coordinate the work of controllers, a method is proposed, which is based on adjusting the initial conditions of the controller with greater error. On its basis, the automatic control system of the rotational motion of the unit is synthesized. It provides high dynamic precision control of two-dimensional rotational motion of the unit in uncertainty and is the basis for the ACS synthesis of its translational motion in space.

The model of the servo piston of the fuel metering unit using matrix approach and neural network

2018 ◽  
Vol 13 (4) ◽  
pp. 107-111
Author(s):  
E.V. Denisova ◽  
M.A. Chernikova
Keyword(s):  
Neural Network ◽  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Parametric Uncertainty ◽  
Matrix Approach ◽  
Turbine Engine ◽  
Quality Of Control ◽  
Sufficient Degree ◽  
Natural Stands

In the paper, the model of a servo piston of a fuel metering unit based on a matrix approach using neural networks is considered. To develop the model of a servo piston, the dependence of the initial piston deviation on the control signal for different values of the nozzles is used. This dependence is represented in the form of a matrix and is used in the neural network. This approach allows describing the movement of the servo piston with a sufficient degree of accuracy. As a record of change squares adjustment of the nozzles is a source of parametric uncertainty in the operation of the automatic control system can lead to a drop in the quality of control, such accounting is relevant. The model of the servo piston is proposed to be used in the structure of the automatic control system for a gas turbine engine and for semi-natural stands.

scholarly journals Digital medicine technologies for pre-trip medical examination of drivers

2020 ◽  
Vol 224 ◽  
pp. 03019
Author(s):  
O.V. Melnik ◽  
M.B. Nikiforov ◽  
V.V. Bonch-Bruevich ◽  
M.B. Kaplan ◽  
A.V. Shulyakov ◽  
...  
Keyword(s):  
Control System ◽  
Comparative Analysis ◽  
Computer Control ◽  
Control Panel ◽  
Diagnostic Efficiency ◽  
Computer Control System ◽  
Quality Of Control ◽  
Digital Medicine ◽  
Psychoemotional State

The technologies of automation of pre-trip integrated examination of the drivers’ conditions are considered, which make it possible to significantly improve the quality of control while reducing the time for its passage. A comparative analysis of known analogues is carried out, problems are formulated, the solution of which will increase the diagnostic efficiency of telemedicine examination. The configuration of the developed computer control system and the hardware-software structure of the subject’s control panel are described. The ways of increasing the reliability of user identification are considered. Technical means have been developed for non-contact thermometry and assessment of tremor parameters. Algorithms for assessing the physiological and psychoemotional state of drivers have been implemented.

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