STAND OF SYSTEMS AND MEANS OF AUTOMATION OF EQUIPMENT REFUELING OF PETROLEUM RESERVOIRS

2021 ◽  
Vol 2021 (8) ◽  
pp. 38-45
Author(s):  
Vitaliy Matlakhov ◽  
Viktor Khandozhko
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Distributed Control ◽  
System Analysis ◽  
Block Diagram ◽  
General Structure ◽  
Petroleum Reservoirs ◽  
Intelligent Support ◽  
Tank Farm ◽  
Machine Systems

The aim of the work is to develop a general structure of the stand that simulates the operation of systems and means of automation of equipment for tank farms of oil products using modern hardware and software, for researching the operation of algorithms for protection and interlocks, alarms and automatic control in accordance with the current regulatory documentation based on modern micro- processor systems. The method of system analysis, the theory of automatic control, structural solutions of human-machine systems intended for the automation of production and intelligent support of control processes and the necessary data processing in organizational, technological and distributed control systems were used. The concept of the stand, the block diagram of the control system and the hydraulic diagram of the stand have been developed. The novelty of the work lies in the creation of a compact model of a tank farm with a complex distributed control system for researching its operation.

scholarly journals Synchronous Generators Modeling and Control Using the Framework of Individual Channel Analysis and Design: Part 1

2007 ◽  
Vol 8 (5) ◽  
Author(s):  
Carlos Ernesto Ugalde Loo ◽  
Luigi Vanfretti ◽  
Eduardo Liceaga-Castro ◽  
Enrique Acha
Keyword(s):  
Control System ◽  
System Analysis ◽  
Block Diagram ◽  
Synchronous Generator ◽  
Careful Analysis ◽  
Operating Conditions ◽  
Synchronous Generators ◽  
Modeling And Control ◽  
Analysis And Design ◽  
Channel Analysis

In this paper a comprehensive dynamical assessment of a high order synchronous generator plant is carried out using the Individual Channel Analysis and Design (ICAD) framework –a multivariable control engineering tool that allows robustness and system performance evaluations. The great benefits of ICAD are elucidated and contrasted to those provided by the long-time honored block diagram representations. Several models used for the small signal stability analysis of synchronous generators are evaluated under the framework of ICAD. The study, which builds on pioneering work, reveals the great advantages of carrying out control system analysis and design with higher order generator models. Moreover, careful analysis of the ICAD's Multivariable Structure Function (MSF) helps to explain, formally, why some operating conditions of the control system are more critical than others. Furthermore, correct interpretations of MSFs are amenable to robust and stable control system designs. Two kinds of studies are considered in the paper; one assesses operation under various power factor conditions and the other under a varying tie-line reactance. The control system design and stability and structural robustness assessment of the system are presented in the second part of this paper. Moreover, results obtained under the ICAD framework are compared with those arising from conventional controllers.

scholarly journals SYSTEM ANALYSIS OF SCIENTIFIC-AND-TECHNICAL INFORMATION IN AUTOMATIC CONTROL SYSTEM OF POWER UNITS WATTAGE

2017 ◽  
Vol 60 (5) ◽  
pp. 446-458 ◽  
Author(s):  
G. T. Kulakov ◽  
K. I. Artsiomenka
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Power Unit ◽  
System Analysis ◽  
Continuous Process ◽  
Thermal Power ◽  
Technical Information ◽  
Active Power ◽  
Point Of View ◽  
Frequency Regulation

The production, transformation, transmission, distribution and consumption of electricity is one continuous process. The change of the load, i.e. the level of energy consumption, should cause a corresponding change in the level of generated energy. It means that the power system should be a balance of produced and consumed energy, taking into account technological cost of conversion, transmission and distribution. Otherwise, electric power quality indicators will be violated. For example, at infringement of balance of active power the frequency in the grid will have a value different from 50 Hz. One of the automatic devices on the lowest rung in the hierarchy of automatic dispatcher control system of frequency and power interchange is the system of automatic control of power units (SACPU). It is a comprehensive and complex device, which consists of several connected together simpler systems, governing all thermal power devices of a power unit. SACPU ought to regulate the active power of the unit and participate in primary frequency regulation in the network with a given accuracy and sensitivity; also, it ought to be adequately fast. At the same time, this device should be simple from the point of view of technical implementation, easy to use, allow one to maintain a high level of efficiency, reliability, durability and environmental performance of the units. To satisfy all these requirements (often conflicting) simultaneously, SACPU should have a certain structure, which depends on the composition and characteristics of heat power equipment of the power unit and on operating modes. The analysis of known SACPU have demonstrated that they are unable to fully provide the requirements of the modern standards for quality control of frequency and power, i.e. the SACPU models are still in need of structural and parametric optimization on the basis of the proximate methods developed at the Belarusian National Technical University.

scholarly journals The procedure of intrusions detection in information security systems based on the use of neural networks

2020 ◽  
pp. 1-9
Author(s):  
Simon Zhorzhevich Simavoryan ◽  
Arsen Rafikovich Simonyan ◽  
Georgii Aleksandrovich Popov ◽  
Elena Ivanovna Ulitina
Keyword(s):  
Neural Networks ◽  
Information Security ◽  
Intrusion Detection ◽  
System Analysis ◽  
Block Diagram ◽  
General Structure ◽  
Neural Systems ◽  
Conceptual Approach ◽  
Security Systems ◽  
External Threats

The subject of the research is the problem of identifying and countering intrusions (attacks) in information security systems (ISS) based on the system-conceptual approach, developed within the framework of the RFBR funded project No. 19-01-00383. The object of the research is neural networks and information security systems (ISS) of automated data processing systems (ADPS). The authors proceed from the basic conceptual requirements for intrusion detection systems - adaptability, learnability and manageability. The developed intrusion detection procedure considers both internal and external threats. It consists of two subsystems: a subsystem for detecting possible intrusions, which includes subsystems for predicting, controlling and managing access, analyzing and detecting the recurrence of intrusions, as well as a subsystem for countering intrusions, which includes subsystems for blocking / destroying protected resources, assessing losses associated with intrusions, and eliminating the consequences of the invasion. Methodological studies on the development of intrusion detection procedures are carried out using artificial intelligence methods, system analysis, and the theory of neural systems in the field of information security. Research in this work is carried out on the basis of the achievements of the system-conceptual approach to information security in ADPS.The main result obtained in this work is a block diagram (algorithm) of an adaptive intrusion detection procedure, which contains protection means and mechanisms, built by analogy with neural systems used in security systems.The developed general structure of the intrusion detection and counteraction system allows systematically interconnecting the subsystems for detecting possible intrusions and counteracting intrusions at the conceptual level.

Research on Application of Distributed Control System in Industrial Process Control

2013 ◽  
Vol 427-429 ◽  
pp. 842-845
Author(s):  
Zhang Hong ◽  
Shou Sheng Zhang ◽  
Lu Ping Sang
Keyword(s):  
Control System ◽  
Distributed Control ◽  
Ph Value ◽  
Can Bus ◽  
General Structure ◽  
Industrial Process ◽  
Mathematic Model ◽  
Distributed Control System ◽  
Model Control ◽  
Technical Specifications

By combination with the general structure characteristics of the distributed control system and the technical specifications of CAN bus, this paper puts forward, designs a FDCS model control system for sewage treatment based on CAN bus and establishes mathematic model for dissolved oxygen (DO) and pH value in the oxidation ditch. It also designs two self-adaptive algorithms of the model and performs digital simulation of the control algorithms.

Development a general-service weighting batcher with automatic control

2020 ◽  
pp. 516-521
Author(s):  
I.M. Shandybina ◽  
A.M. Makarov ◽  
M.P. Kukhtik ◽  
D.K. Azarjan ◽  
O.I. Melashhenko ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Block Diagram ◽  
Kinematic Scheme ◽  
Patent Search ◽  
Unit Block ◽  
Operation Algorithm ◽  
General Service ◽  
Bulk Production

A general-service weighting batcher with automatic control, which is related to the field of packaging equipment and is intended for weighing and dosing of food or non-food bulk production, has been developed. The existing constructions have been studied and patent search of analogues has been carried out. The kinematic scheme of the mechanism has been drawn out on the basis of analysis of study subject analogues. The construction of the dosing unit, block diagram and operation algorithm of automatic control system of the batcher have been developed. Modeling and research of the device construction have been carried out. Choice of optimal dimensions of the device has been grounded mathematically.

scholarly journals TECHNOLOGICAL FEATURES OF AUTOMATIC CONTROL OF LONG FIBRE PRODUCTION

2020 ◽  
pp. 3-6
Author(s):  
L. V. Mochalov ◽  
V. G. Drozdov
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Negative Feedback ◽  
Block Diagram ◽  
Control Object ◽  
Fibre Production ◽  
Flax Fibre ◽  
Movement Speed ◽  
The Way

Machines for producing flax fibre as automatic control objects are described in this article. Versions of control of drying machine by control of amount of supplied heat, intensity of replacement of spent drying agent with fresh one, change of drying agent speed in drying region, change of material movement speed in drying space are considered. It is shown that what is the most rational way of controlling the moisture of retted straw is the way that uses a closed control system with negative feedback. The block diagram of the automatic drying control system that acts on the control object, in this case on the dryer, through the actuator, in order to reduce the amount of humidity deviation depending on the amount and the sign of deviation, is developed.

scholarly journals SYSTEM OF AUTOMATIC CONTROL OF MEASUREMENT OF INDUSTRIAL CONTROLLED PARAMETERS OF SILICON FOR POROUS SUBSTRATES

2021 ◽  
Vol 3 (55) ◽  
pp. 50-56
Author(s):  
S. Pritchin ◽  
◽  
V. Dragobetsky ◽  
І. Shevchenko ◽  
V. Palagin ◽  
...  
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Automatic Control System ◽  
Local Area Network ◽  
Block Diagram ◽  
Local Area ◽  
Monocrystalline Silicon ◽  
Area Network ◽  
Porous Substrates

Purpose. Certification of silicon ingots intended for the manufacture of porous silicon substrates, which includes many operations for measuring silicon parameters. Some measurement operations are automated and some are not automated. The aim of the work is to fully automate the process of creating a quality certificate for monocrystalline silicon by developing an automatic control system for measuring controlled silicon parameters for porous linings. Methodology. We have performed an analysis of existing methods and methods of industrially controlled parameters of silicon. We have performed the analysis of standards for the measurement of parameters and the measurement process in the factory. Results. In this work, the authors performed the classification of industrially controlled parameters in accordance with the methods and measurement equipment. On the basis of the obtained analysis, the authors developed a scheme of the procedure for performing the operations of measuring the parameters of monocrystalline silicon. The authors proposed a block diagram of an automatic control system for measuring industrially controlled parameters of silicon. All equipment included in the sites is integrated into an industrial local area network, which is controlled by an industrial controller. The work shows the system software developed by the authors, developed in the LabView environment. The program allows you to generate a quality certificate for a monocrystalline silicon ingot for porous substrates, to analyze data for a selected period of time. Originality. For the first time, a classification of methods and means of measured parameters of monocrystalline silicon was carried out according to the criterion of measurement automation. The scheme of the order of performing of measurement operations has been improved in order to optimize it for automating the generation of a quality certificate. Practical value. The proposed automatic control system for measuring industrially controlled parameters of silicon is used at the plant “Pure Metals” that produces ingots of monocrystalline silicon. It can be used in factories where product quality certificates are used based on the measurement of many parameters. Figures 3, tables 1, references 11.

A Quasilinear Analysis and Design Technique for Nonlinear Flight Control Systems

1990 ◽  
Vol 35 (2) ◽  
pp. 15-24 ◽  
Author(s):  
Charles Dabundo ◽  
H. C. Curtiss
Keyword(s):  
Control System ◽  
Control Systems ◽  
Flight Control ◽  
System Analysis ◽  
General Structure ◽  
Nonlinear Behavior ◽  
Physical Nature ◽  
Nonlinear Effects ◽  
Analysis And Design ◽  
Flight Hardware

Nonlinear characteristics which are likely to be present in rotorcraft flight control systems include saturation, deadzone, and hysteresis. These occur due to the physical nature of the flight hardware or may be intentionally designed into the system to enhance safety or performance. A technique to include such nonlinear behavior in the analysis and design of flight control systems is presented and illustrated by examples. This technique, called the Quasilinear System Analysis and Design (QSAD) Method is based on describing function theory and can be applied to systems of fairly general structure. The method promotes physical insight into the effects of nonlinearities, and provides a quantitative approach to the consideration of nonlinear effects in control system design. The QSAD method provides a means to design a more robust control system in the presence of nonlinearities.

Design and Implementation of the System Based on the Mechanical Topology Smart Furniture

2013 ◽  
Vol 329 ◽  
pp. 497-502 ◽  
Author(s):  
Jing Tian Tang ◽  
Hong Ying He ◽  
Xin Wu
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Wireless Network ◽  
Smart Home ◽  
Block Diagram ◽  
Circuit Diagram ◽  
Main Function ◽  
Network Technology ◽  
Design And Implementation ◽  
Hardware Circuit

Using microcontroller ATmega16L designed a remote smart home control system based on the wireless network technology. The system contains mechanical equipments such as motor-driven window and curtain and manipulator. The manipulator is to control the on/off state of the valve to the gas tank .The paper presents the main function of the system's components and systems, and a part of the system block diagram as well as some part of the hardware circuit diagram and program. Some subsystem of the smart home system can be used for automatic control in industrial field.

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