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Comparison of Intelligent Control Methods for the Ore Jigging Process

Yelena Kulakova Waldemar Wójcik Batyrbek Suleimenov Andrzej Smolarz
International Journal of Electronics and Telecommunications | 2021 | vol. 67 | No 3 | 363-368
Keywords neural network Ore jiggling control algorithm fuzzy logic
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Abstract

This paper is focused on multiple soft fault diagnosis of linear time-invariant analog circuits and brings a method that achieves all objectives of the fault diagnosis: detection, location, and identification. The method is based on a diagnostic test arranged in the transient state, which requires one node accessible for excitation and two nodes accessible for measurement. The circuit is specified by two transmittances which express the Laplace transform of the output voltages in terms of the Laplace transform of the input voltage. Each of these relationships is used to create an overdetermined system of nonlinear algebraic equations with the circuit parameters as the unknown variables. An iterative method is developed to solve these equations. Some virtual solutions can be eliminated comparing the results obtained using both transmittances. Three examples are provided where laboratory or numerical experiments reveal effectiveness of the proposed method.
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Bibliography

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Authors and Affiliations

Yelena Kulakova
1
Waldemar Wójcik
2
Batyrbek Suleimenov
1
Andrzej Smolarz
2
  1. Satbaev University, Almaty, Kazakhstan
  2. Lublin University of Technology, Lublin, Poland

Solving the Problem of Discrete Process Control Synthesis Using Optimization on a Sliding Interval

Zhazira Julayeva Waldemar Wójcik Gulzhan Kashaganova Kulzhan Togzhanova Saken Mambetov
International Journal of Electronics and Telecommunications | 2023 | vol. 69 | No 2 | 383-389 | DOI: 10.24425/ijet.2023.144374
Keywords discrete process control optimization sliding interval closed loop control system equation of a closed loop system
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Abstract

The paper presents a solution to the problem of synthesis of control with respect to the sliding interval length for the optimization of a class of discrete linear multidimensional objects with a quadratic performance criterion. The equation of motion of a closed multidimensional discrete system in the general non-stationary case is derived based on the length of the optimization interval and their main properties. The closed-loop is fitted with a signal representing the predicted values averaged over the whole sliding interval of optimization with a certain weight. A problem with a sliding optimization interval may not require a real-time solution by means of a sequence of solutions on compressed intervals. Therefore, the study of control systems with optimization on a sliding interval is of undoubted interest for a number of practically important control problems.
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Authors and Affiliations

Zhazira Julayeva
1
Waldemar Wójcik
2
Gulzhan Kashaganova
3
Kulzhan Togzhanova
4
Saken Mambetov
4
  1. Academy of Logistics and Transport, Almaty Technological University, Almaty, Kazakhstan
  2. Lublin University of Technology, Lublin, Poland
  3. Turan University and Satbayev University, Almaty, Kazakhstan
  4. Almaty Technological University, Almaty, Kazakhstan

Development Of A Monitoring System For Electric Power Substations Based On Ios And Implementation Of Designs On FPGA

Maksat Kalimoldayev Waldemar Wójcik Zhazira Shermantayeva
International Journal of Electronics and Telecommunications | 2023 | vol. 69 | No 4 | 819-824 | DOI: 10.24425/ijet.2023.147708
Keywords IoT Internet of Things FPGA GPS NAS
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Abstract

In this article, a monitoring system based on IoT technologies of the substation electrical system in the Republic of Kazakhstan was developed. At the moment, the operation of power systems is extremely important to maintain the frequency of electric current over time. For management and monitoring applications, it is necessary to take into account communication within acceptable limits. IoT technologies are considered the main functions in applications for monitoring and managing energy systems in real time, as well as making effective decisions on both technical and financial issues of the system, for monitoring the main form of data registration on an electric power substation in the city of Shymkent of the Republic of Kazakhstan, for consistent effective decision-making by system operators. In this work, an Internet of Things-based monitoring system was implemented and implemented for the substation of the power system using a specialized device built into the FPGA controller for fast integrated digitalization of transformer substations of real-time distribution electrical networks. The IoT platform also provides complete remote observability and will increase reliability for power system operators in real time. This article is mainly aimed at providing a practical application that has been implemented and tested.
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Authors and Affiliations

Maksat Kalimoldayev
1
Waldemar Wójcik
2
Zhazira Shermantayeva
1
  1. Institute ofInformation and Computing Technologies of the KN of the Ministry ofInternal Affairs of the Republic of Kazakhstan
  2. Lublin University of Technology, Lublin, Poland

Adaptive Automatic System of Controlling Acceleration Characteristics of Electromechanical Converters with an Observing Identification Tool

Aidana Kalabayeva Waldemar Wójcik Gulzhan Kashaganova Kulzhan Togzhanova Zhaksygul Sarybayeva
International Journal of Electronics and Telecommunications | 2023 | vol. 69 | No 3 | 615-620 | DOI: 10.24425/ijet.2023.146515
Keywords electromechanical converters adaptive system control systems identification
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Abstract

The operating modes of the automatic control system for electromechanical converters for synchronization of rotor speeds have been developed and investigated. The proposed automatic speed control system allows adjusting the slave engine to the master one in a wide range from 0 to 6000 rpm. To improve the synchronization accuracy an adaptive algorithm is proposed that allows to increase the synchronization accuracy by 3-4 times. The proposed model of an adaptive automatic control system with an observing identification tool makes it possible to minimize the error in the asynchrony of the rotation of the rotors of two electromechanical converters.
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Authors and Affiliations

Aidana Kalabayeva
1 2
Waldemar Wójcik
3
Gulzhan Kashaganova
4
Kulzhan Togzhanova
5
Zhaksygul Sarybayeva
1
  1. Academy of Logistics and Transport, Almaty, Kazakhstan
  2. Almaty University of Power Engineering and Telecommunications Almaty, Kazakhstan
  3. Lublin University of Technology, Lublin, Poland
  4. Turan University, Almaty, Kazakhstan
  5. Almaty Technological University, Almaty, Kazakhstan

Development and Analysis of Symmetric Encryption Algorithm Qamal Based on a Substitution-permutation Network

Rustem G. Biyashev Nursulu A. Kapalova Dilmuhanbet S. Dyusenbayev Kunbolat T. Algazy Waldemar Wojcik Andrzej Smolarz
International Journal of Electronics and Telecommunications | 2021 | vol. 67 | No 1 | 127-132 | DOI: 10.24425/ijet.2021.135954
Keywords encryption cryptanalysis S-box SP-network
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Abstract

This paper represents a developed cryptographic information protection algorithm based on a substitutionpermutation network. We describe the cryptographic transformations used in the developed algorithm. One of the features of the algorithm is the simplicity of its modification with regard to different security levels. The algorithm uses a predeveloped S-box tested against differential and linear cryptanalysis. The S-box is consistent with one of the known standards AES and GOST R 34.12-2015. We provide the findings of an avalanche-effect investigation and statistical properties of ciphertexts. The algorithm actually meets the avalanche-effect criterion even after the first round.
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Authors and Affiliations

Rustem G. Biyashev
1
Nursulu A. Kapalova
1
Dilmuhanbet S. Dyusenbayev
1
Kunbolat T. Algazy
1
Waldemar Wojcik
2
Andrzej Smolarz
2
  1. Institute of Information and Computational Technologies of the Committee of Science of the Ministry of Education and Science of the Republic of Kazakhstan, Almaty
  2. Lublin University of Technology, Lublin, Poland

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