Energy, Control and Systems Engineering, Computer Science Applications, Industrial and Manufacturing Engineering
5
Scopus Publications
Scopus Publications
Introduction of Frequency Control of Electric Drives of the Dust Supply System of the Boiler Unit Yuliya Bulatbayeva, Kuralay Tokhmetova, Vitaliy Balandin, Fariza Abiljanova, Olzhas Makhambetov, Makhabbat Tleugabylova Lindi 2024 6th IEEE International Symposium on Logistics and Industrial Informatics Proceedings, 2024 The operating modes of the electric drive were studied in order to select the optimal control device for dust feeders of a thermal power plant. The shortcomings of the existing generator-engine control system have been identified. An alternative technical solution is proposed.
AUTOMATED ROBOTIC COMPLEXES IN ENGINEERING, ADJUSTMENT, PRODUCTION AND EDUCATION PROCESSES Sergey Stazhkov, Boris Feshin, Lubov Shpakova, Kuralay Tokhmetova, Yelena Kalashnikova Annals of Daaam and Proceedings of the International Daaam Symposium, 2023 Distributed monitoring and control systems are developed for automating the control of large-scale and complex industrial systems.They consist of a combination of digital and mechanical parts operating in complex processes, both deterministic and stochastic, inside and outside of the systems.A feature of monitoring and control systems in largescale and complex industrial systems is ability to collect, analyze and act based on a large volume of information in limited time periods.At the same time, large-scale and complex industrial systems have the properties of a flexible distributed production line.The article analyses the modernization tasks of control and monitoring systems of largescale objects by focusing on "Industry 4.0" technology.The prerequisites for creating and designing digital twins for components of such systems are considered.New technologies of automated electric drives setting up are proposed.The theoretical principles to assess an efficiency and probability to reduce an energy consumption in large-scale systems affected by significant external disturbances and interference is shown.It demonstrates the results of students and undergraduate education in the field of management of large-scale industrial systems within the framework of the international educational project "Synergy".The long-term objectives of artificial intelligence application for further research and improvement of large-scale systems are identified.
The control of flexible automated production of the scraper conveyers L. G. Shpakova, E. Moraru, B. N. Feshin, K. M. Tokhmetova, Ye. V. Kalashnikova News of the National Academy of Sciences of the Republic of Kazakhstan Series of Geology and Technical Sciences, 2021 The analysis of possible energy saving in in the technological process of production of elements of scraper conveyors containing flexible automated production is given. It consists of complex subordinate aggregate installations consisting of conveyor lines, robot manipulators and tripods. The studied technological processes and control systems for electric drives of actuators are multi-connected, distributed in space, stochastic and multidimensional in the number of control and monitoring coordinates. It is proposed a methodology of reducing energy consumption of actuators by means of physical-virtual modeling and parameterization based on estimates of energy costs, by means of planning factor experiments, steep ascending in the anti-gradient direction of integral quadratic estimates of the control system, which are proportional to the costs of electricity in transient modes of actuators. The methodology, in comparison with the well-known optimization methods, is invariant to the type of products developed in flexible automated production, to the laws of distribution of the semi-finished products flows entering the production line, and is focused on predicting the boundaries of the saved energy and the life of the electromechanical equipment and improving reliability of electric drive control systems operation as a part of industrial complexes. The uniqueness of the method consists in applicability of the developed algorithm of evaluating energy savings and optimizing technological processes according to the criterion of energy consumption in real time in the condi- tions of the probabilistic situation of input parameters, regardless of the selected method of setting the optimal parameters of production line facilities.
Float converter model for wave power sources К.M. Tokhmetova, K.S. Sholanov Eai Endorsed Transactions on Energy Web, 2017 In the article it is proposed to improve wave power plants by using a primary manipulator converter (PMC) with the structure of a parallel six-mobile manipulator for converting energy of waves into mechanical energy. There has been developed a physical model of a primary manipulator converter confirming its functionality. There have been obtained geometrical dimensions of a primary manipulator converter and a float taking into account wave parameters. For selecting and analyzing the primary manipulator converter of wave power plants there are proposed the dependences for calculating power. The use of the primary manipulator converter in underwater wave power plants will permit to increase their reliability and efficiency in operation.
