Pub Date : 2019-10-01DOI: 10.1109/ICOECS46375.2019.8950021
E. Muravyova, E. Enikeeva
In this paper we analyze the energy consumption of booster pump station control systems. To deal with this task, two simulation models of liquid level control in the iThink program were developed. The first model was designed using only a frequency converter, and the second model was using a frequency converter and a Fuzzy Controller. An imitation of the liquid level control process was carried out, and from this graph of pump energy consumption were obtained. Based on the initial and obtained data, a comparative analysis of the effectiveness of the considered control systems was carried out, and the power consumption of the considered control systems of two simulation models of a booster pumping station were also presented in graphical form. The analysis of the models examined showed that it is more economical and safer to use a control circuit with a frequency converter and a Fuzzy Controller.
{"title":"Analysis of the Power Consumption of the Booster Pump Station Using Simulation Models of Fluid Control","authors":"E. Muravyova, E. Enikeeva","doi":"10.1109/ICOECS46375.2019.8950021","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8950021","url":null,"abstract":"In this paper we analyze the energy consumption of booster pump station control systems. To deal with this task, two simulation models of liquid level control in the iThink program were developed. The first model was designed using only a frequency converter, and the second model was using a frequency converter and a Fuzzy Controller. An imitation of the liquid level control process was carried out, and from this graph of pump energy consumption were obtained. Based on the initial and obtained data, a comparative analysis of the effectiveness of the considered control systems was carried out, and the power consumption of the considered control systems of two simulation models of a booster pumping station were also presented in graphical form. The analysis of the models examined showed that it is more economical and safer to use a control circuit with a frequency converter and a Fuzzy Controller.","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114561970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/ICOECS46375.2019.8950020
M. Guzairov, A. Frid, A. Vulfin, V. Berkholts
The issues of creating a system for monitoring the integrity of the accumulated data in a modular system for collecting, storing and processing telemetric information about the state of an aircraft's power plant based on the use of its model and modern technologies for the intelligent analysis of telemetric information are considered. A block diagram of a data integrity monitoring system based on the power plant model and an intellectual analysis of technological time is proposed, which allows to identify the fact of unauthorized access to the system and to increase the security of telemetry information from unauthorized modifications. A model for analyzing the accumulated telemetry data based on the technologies of neural network processing of technological time series has been developed. Numerical modeling using field data has confirmed the efficiency of the proposed analysis model.
{"title":"The concept of integrity of telemetric information about the state of an aircraft power plant monitoring","authors":"M. Guzairov, A. Frid, A. Vulfin, V. Berkholts","doi":"10.1109/ICOECS46375.2019.8950020","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8950020","url":null,"abstract":"The issues of creating a system for monitoring the integrity of the accumulated data in a modular system for collecting, storing and processing telemetric information about the state of an aircraft's power plant based on the use of its model and modern technologies for the intelligent analysis of telemetric information are considered. A block diagram of a data integrity monitoring system based on the power plant model and an intellectual analysis of technological time is proposed, which allows to identify the fact of unauthorized access to the system and to increase the security of telemetry information from unauthorized modifications. A model for analyzing the accumulated telemetry data based on the technologies of neural network processing of technological time series has been developed. Numerical modeling using field data has confirmed the efficiency of the proposed analysis model.","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125666222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/ICOECS46375.2019.8949921
A. Gritsay, N. Kostin, D. Tyunkov, I. Zakharov, R. Khamitov, V. Nesteruk
The featured article describes the problem of confidence interval calculation of the forecast electricity loads field. The methods of calculation of confidence interval for forecasting in electricity loads field introduced.
本文介绍了电力负荷场预测的置信区间计算问题。介绍了电力负荷预测置信区间的计算方法。
{"title":"On confidence interval composition in short-term forecasting of electricity consumption","authors":"A. Gritsay, N. Kostin, D. Tyunkov, I. Zakharov, R. Khamitov, V. Nesteruk","doi":"10.1109/ICOECS46375.2019.8949921","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8949921","url":null,"abstract":"The featured article describes the problem of confidence interval calculation of the forecast electricity loads field. The methods of calculation of confidence interval for forecasting in electricity loads field introduced.","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127866668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/ICOECS46375.2019.8950004
A. V. Styskin, N. G. Urazbakhtina
Currently, in electric drives, valve motors on multiphase synchronous-reactive electric machines are widely used. The switching of the windings is carried out according to the signals of the rotor position sensor and from control system. The time of transient current changes during switching directly depends on the time constant of the windings. In machines of medium and high power, the time constant is significant, which increases the time of transient processes, and at high rotational speeds leads to a decrease in the average current in the winding, thereby reducing torque. An effective means of combating such phenomena are devices accelerating (forcing) transients during switching windings. The article proposes an original forcing circuit for multiphase electric machines and a circuit method for studying the transient time during switching windings. For example, a simulation model of the connection scheme of the windings of a three-phase electric machine with forcing elements is developed and waveforms of currents in the windings showing the effect of forcing are shown.
{"title":"Improving Dynamic Performance of the Switched-Reluctance Motors","authors":"A. V. Styskin, N. G. Urazbakhtina","doi":"10.1109/ICOECS46375.2019.8950004","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8950004","url":null,"abstract":"Currently, in electric drives, valve motors on multiphase synchronous-reactive electric machines are widely used. The switching of the windings is carried out according to the signals of the rotor position sensor and from control system. The time of transient current changes during switching directly depends on the time constant of the windings. In machines of medium and high power, the time constant is significant, which increases the time of transient processes, and at high rotational speeds leads to a decrease in the average current in the winding, thereby reducing torque. An effective means of combating such phenomena are devices accelerating (forcing) transients during switching windings. The article proposes an original forcing circuit for multiphase electric machines and a circuit method for studying the transient time during switching windings. For example, a simulation model of the connection scheme of the windings of a three-phase electric machine with forcing elements is developed and waveforms of currents in the windings showing the effect of forcing are shown.","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132273386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The article discusses the causes of the occurrence of such a phenomenon as the rotation of the impeller of a fan or pump located in the technological reserve, under the action of a reverse flow of the working medium. The negative consequences of the reverse rotation mode of the fan impeller or pump for the electric motor are considered in detail. The article discusses ways of picking up electric drives of fan and pumping units during reverse rotation of the impeller. It is shown that the existing methods for determining the initial speed and the pickup of the rotor are focused on the self-starting of the electric motor when power is lost, at which the rotor rotates in the normal direction. A method for picking up a frequency converter is proposed, which allows to determine the frequency and direction of rotation of the rotor, thereby ensuring the pickup and successful start of the electric motor with the reverse direction of rotation.
{"title":"The mode of anti-switching of the electric drive during the reverse rotation of the impeller of the fan and pumping units","authors":"Shabanov Vitaliy Alekseyevich, Pashkin Vasily Valerievich, Ivashkin Oleg Nikolaevich","doi":"10.1109/ICOECS46375.2019.8949947","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8949947","url":null,"abstract":"The article discusses the causes of the occurrence of such a phenomenon as the rotation of the impeller of a fan or pump located in the technological reserve, under the action of a reverse flow of the working medium. The negative consequences of the reverse rotation mode of the fan impeller or pump for the electric motor are considered in detail. The article discusses ways of picking up electric drives of fan and pumping units during reverse rotation of the impeller. It is shown that the existing methods for determining the initial speed and the pickup of the rotor are focused on the self-starting of the electric motor when power is lost, at which the rotor rotates in the normal direction. A method for picking up a frequency converter is proposed, which allows to determine the frequency and direction of rotation of the rotor, thereby ensuring the pickup and successful start of the electric motor with the reverse direction of rotation.","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132407355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The problems of constructing the static and rotating magnetic fields sources, the features of functioning with their different spatial orientation are considered, vector diagrams and structures of program-controlled inductors are given
讨论了静态和旋转磁场源的构造问题及其在不同空间取向下的功能特点，给出了程控电感器的矢量图和结构
{"title":"Design of inductors with static and rotating magnetic field with microprocessor control","authors":"Milovzorov Georgiy Vladimirovich, Milovzorov Dmitry Georgievich, Milovzorov Alexey Georgievich","doi":"10.1109/ICOECS46375.2019.8949953","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8949953","url":null,"abstract":"The problems of constructing the static and rotating magnetic fields sources, the features of functioning with their different spatial orientation are considered, vector diagrams and structures of program-controlled inductors are given","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132449902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/ICOECS46375.2019.8949930
V. Nefedov, I. V. Kozlovsky, N. A. Mirolyubova, S.N. Zamuruev
In recent years, devices with the digital formation of the envelope for group carriers have become widespread in the transmission paths of various radio engineering systems. However, this formation has a significant disadvantage: high sensitivity to non-linear distortions (more often it is intermodulation distortion) arises in amplification paths. It is often very difficult to evaluate the influence of many nonlinear effects by compiling and solving a system of nonlinear integro-differential equations. Therefore, one has to turn to mathematical models. The problems associated with the creation of mathematical models of nonlinear systems form one of the main areas of science and technology – optimization, or modeling, identification and approximation of their transfer characteristics.
{"title":"Optimization of Characteristics in Nonlinear Systems","authors":"V. Nefedov, I. V. Kozlovsky, N. A. Mirolyubova, S.N. Zamuruev","doi":"10.1109/ICOECS46375.2019.8949930","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8949930","url":null,"abstract":"In recent years, devices with the digital formation of the envelope for group carriers have become widespread in the transmission paths of various radio engineering systems. However, this formation has a significant disadvantage: high sensitivity to non-linear distortions (more often it is intermodulation distortion) arises in amplification paths. It is often very difficult to evaluate the influence of many nonlinear effects by compiling and solving a system of nonlinear integro-differential equations. Therefore, one has to turn to mathematical models. The problems associated with the creation of mathematical models of nonlinear systems form one of the main areas of science and technology – optimization, or modeling, identification and approximation of their transfer characteristics.","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129412429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/ICOECS46375.2019.8949874
Y. Isaev, O. Vasileva
The paper studies optimization of technological parameters of the coaxial magnetoplasma accelerator by varying of solenoid inductance on the basis of experimental data. Data for research were received by experimental path for the accelerator two different models which is used for double purpose. The solenoid inductance was determined on the basis calculation of the magnetic vector potential succeeded by calculation of magnetic field energy. Optimum value of inductance for two models when value of kinetic energy reaches the maximum level was determined, it influences on escape speed of plasma jet. Analysis of the solenoid inductance was made, it influences on increasing transverse velocity component, and thus, the metal erosion and amount of disperse powders. The system of second order differential equations was written down as first order differential equations for calculation accuracy increasing and was solved using the fourth-order Runge-Kutta fixed-step method. View of potential pit was simulated in software package COMSOL Multiphysics which shows spatial limitation of the plasma particles expansion and illustrates the advantages of the longitudinal and transverse components of the charged particles velocity in the plasma jet. Simulation data allow to improve technological parameters of the investigated accelerator. The test of a model for adequacy was completed by calculation energy balance for system.
{"title":"Optimization of Technological Parameters of the Coaxial Magnetoplasma Accelerator by Varying of Solenoid Inductance","authors":"Y. Isaev, O. Vasileva","doi":"10.1109/ICOECS46375.2019.8949874","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8949874","url":null,"abstract":"The paper studies optimization of technological parameters of the coaxial magnetoplasma accelerator by varying of solenoid inductance on the basis of experimental data. Data for research were received by experimental path for the accelerator two different models which is used for double purpose. The solenoid inductance was determined on the basis calculation of the magnetic vector potential succeeded by calculation of magnetic field energy. Optimum value of inductance for two models when value of kinetic energy reaches the maximum level was determined, it influences on escape speed of plasma jet. Analysis of the solenoid inductance was made, it influences on increasing transverse velocity component, and thus, the metal erosion and amount of disperse powders. The system of second order differential equations was written down as first order differential equations for calculation accuracy increasing and was solved using the fourth-order Runge-Kutta fixed-step method. View of potential pit was simulated in software package COMSOL Multiphysics which shows spatial limitation of the plasma particles expansion and illustrates the advantages of the longitudinal and transverse components of the charged particles velocity in the plasma jet. Simulation data allow to improve technological parameters of the investigated accelerator. The test of a model for adequacy was completed by calculation energy balance for system.","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133596661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/ICOECS46375.2019.8949913
Y. Rakhmanova, L. Roginskaya, A. Lobanov, Z. Yalalova
The article considers two constructions of modern magnet cores – plate cores made of electrical steel and twisted cores made of amorphous steel. The production technologies of magnet cores with straight plate joints, oblique joints (at an angle of 45°) and on the “Step-lap” configuration are considered. The production process of a magnetic core without upper yoke is detailed. The features of the amorphous steel magnetic core assembly are given.
{"title":"Production of Plate Magnet Cores in Modern Transformers","authors":"Y. Rakhmanova, L. Roginskaya, A. Lobanov, Z. Yalalova","doi":"10.1109/ICOECS46375.2019.8949913","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8949913","url":null,"abstract":"The article considers two constructions of modern magnet cores – plate cores made of electrical steel and twisted cores made of amorphous steel. The production technologies of magnet cores with straight plate joints, oblique joints (at an angle of 45°) and on the “Step-lap” configuration are considered. The production process of a magnetic core without upper yoke is detailed. The features of the amorphous steel magnetic core assembly are given.","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130129227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-01DOI: 10.1109/ICOECS46375.2019.8949922
Yury Afanasyev, D. Pashali, A. Demin, O. Yushkova
Damping electromechanical energy converters are the executive elements of various electromechanical systems and their technical condition affect the reliability of the whole system. Therefore, high demands are placed on its design and there is a need to diagnose its technical condition. The most promising method of diagnosis is the method using an instrument analysis of an external magnetic field. In addition, the evaluation of the external magnetic field is relevant in practical verification of the magnetic compatibility of damping electromechanical energy converters. In this regard, the authors developed a mathematical model of an external magnetic field of damping electromechanical energy converters with primary magnetic field asymmetry and considered the possibility of diagnosing them using an external magnetic field. The simulation results analysis showed that the relative displacement of the magnetic symmetry axis of the field from the magnetic system axis could be determined by calculation and as a diagnostic signal in the form of changes in the amplitude of the external magnetic field intensity (envelope).
{"title":"The external magnetic field of damping electromechanical energy converters","authors":"Yury Afanasyev, D. Pashali, A. Demin, O. Yushkova","doi":"10.1109/ICOECS46375.2019.8949922","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8949922","url":null,"abstract":"Damping electromechanical energy converters are the executive elements of various electromechanical systems and their technical condition affect the reliability of the whole system. Therefore, high demands are placed on its design and there is a need to diagnose its technical condition. The most promising method of diagnosis is the method using an instrument analysis of an external magnetic field. In addition, the evaluation of the external magnetic field is relevant in practical verification of the magnetic compatibility of damping electromechanical energy converters. In this regard, the authors developed a mathematical model of an external magnetic field of damping electromechanical energy converters with primary magnetic field asymmetry and considered the possibility of diagnosing them using an external magnetic field. The simulation results analysis showed that the relative displacement of the magnetic symmetry axis of the field from the magnetic system axis could be determined by calculation and as a diagnostic signal in the form of changes in the amplitude of the external magnetic field intensity (envelope).","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"12 Suppl 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134070275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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