Pub Date : 2019-10-01DOI: 10.1109/ICOECS46375.2019.8949876
R. Zaynutdinov, L. Zaynutdinova, V. Ilyichev
Solar energy is developing rapidly all over the world. In the Russian Federation the development of solar energy has also been observed in the last 3 years. Mainly network solar power plants with a capacity of 10 to 60 MW are being built. In addition, despite the lack of state support for the development of small renewable energy, in recent years the owners of tourist bases, commercial and office buildings, small enterprises connected to the general power grid have shown increasing interest in grid power plants. In this study the forecast of the development of a small network solar station is carried out using Photovoltaic Geographical Information System program. Full-scale tests of the realized network solar station of 10,5 kW for power supply in the retail and office building showed high accuracy of the forecast of its operation. The average annual self-sufficiency ratio comprised 32%. The results of full-scale testing confirm the economic attractiveness of small grid power projects in the climatic conditions of Astrakhan region.
{"title":"Performance Evaluation of On-Grid Solar Power Stations in a Office Building in the Climatic Conditions of Astrakhan Region","authors":"R. Zaynutdinov, L. Zaynutdinova, V. Ilyichev","doi":"10.1109/ICOECS46375.2019.8949876","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8949876","url":null,"abstract":"Solar energy is developing rapidly all over the world. In the Russian Federation the development of solar energy has also been observed in the last 3 years. Mainly network solar power plants with a capacity of 10 to 60 MW are being built. In addition, despite the lack of state support for the development of small renewable energy, in recent years the owners of tourist bases, commercial and office buildings, small enterprises connected to the general power grid have shown increasing interest in grid power plants. In this study the forecast of the development of a small network solar station is carried out using Photovoltaic Geographical Information System program. Full-scale tests of the realized network solar station of 10,5 kW for power supply in the retail and office building showed high accuracy of the forecast of its operation. The average annual self-sufficiency ratio comprised 32%. The results of full-scale testing confirm the economic attractiveness of small grid power projects in the climatic conditions of Astrakhan region.","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"60 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":"126488119","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/ICOECS46375.2019.8950025
D. Platonov, V. Stepanov, N. Golubeva
Provides an assessment of additional estimated losses of electricity in power systems cranes in river ports. The cause of additional calculated power losses is the use of step load graphs instead of the original graphs as the initial information. Clarification of the calculated power losses is achieved by taking into account the unevenness, characterized by the coefficient of form, and the probabilistic nature of the initial load graphs on the steps. For this purpose, the initial diagrams of the electric load of river cranes are represented by a probabilistic model in the form of a random, stationary Markov process with an exponential-cosine-sine correlation function that determines the probabilistic relationship between the ordinates of the original graphs. The method of probabilistic modeling is used for analytical expression on the restoration of the coefficients of the shape of the initial graphs. The expression relates the variance of the initial and step diagrams of the electrical load through the correlation function, which determines the probability relationship between the ordinates of the initial graphs. The parameters of the correlation function were obtained in experiments and cover river cranes with lifting capacity from 3 to 16 tons when working with bulk cargo. It is shown that the area of the restored coefficients of the shape of the original graphs is in the range: the lower - from 1.21 to 1.28, and the upper-from 1.48 to 1.63. An additional increase in the estimated power loss is in the range of 10 to 46%. The results of the work can be used to improve the method of calculating power losses in the power supply systems of river port cranes
{"title":"The influence of the probabilistic nature of the graphs of the electrical load of river port cranes on the additional calculated power losses","authors":"D. Platonov, V. Stepanov, N. Golubeva","doi":"10.1109/ICOECS46375.2019.8950025","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8950025","url":null,"abstract":"Provides an assessment of additional estimated losses of electricity in power systems cranes in river ports. The cause of additional calculated power losses is the use of step load graphs instead of the original graphs as the initial information. Clarification of the calculated power losses is achieved by taking into account the unevenness, characterized by the coefficient of form, and the probabilistic nature of the initial load graphs on the steps. For this purpose, the initial diagrams of the electric load of river cranes are represented by a probabilistic model in the form of a random, stationary Markov process with an exponential-cosine-sine correlation function that determines the probabilistic relationship between the ordinates of the original graphs. The method of probabilistic modeling is used for analytical expression on the restoration of the coefficients of the shape of the initial graphs. The expression relates the variance of the initial and step diagrams of the electrical load through the correlation function, which determines the probability relationship between the ordinates of the initial graphs. The parameters of the correlation function were obtained in experiments and cover river cranes with lifting capacity from 3 to 16 tons when working with bulk cargo. It is shown that the area of the restored coefficients of the shape of the original graphs is in the range: the lower - from 1.21 to 1.28, and the upper-from 1.48 to 1.63. An additional increase in the estimated power loss is in the range of 10 to 46%. The results of the work can be used to improve the method of calculating power losses in the power supply systems of river port cranes","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"47 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":"125025112","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/ICOECS46375.2019.8950004
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}
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/ICOECS46375.2019.8949921
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/ICOECS46375.2019.8950012
S. Obukhov, I. Plotnikov, V. G. Masolov
One of principal components of hybrid power stations with renewable energy resources is the energy storage which characteristics define power and cost efficiency of all power generating system. In the article the analysis of operating modes of hybrid power station with the high level of substitution of organic fuel is made, the necessity of use of energy storage is proved. The original architecture of creation and a way of management of operating modes of a hybrid power generating system based on use of the double-circuit storage of energy providing the optimum modes of a charge of rechargeable batteries is offered. In a such way their safety and the maximum operation life is ensured.
{"title":"The effective energy storage for hybrid power systems with renewable energy sources","authors":"S. Obukhov, I. Plotnikov, V. G. Masolov","doi":"10.1109/ICOECS46375.2019.8950012","DOIUrl":"https://doi.org/10.1109/ICOECS46375.2019.8950012","url":null,"abstract":"One of principal components of hybrid power stations with renewable energy resources is the energy storage which characteristics define power and cost efficiency of all power generating system. In the article the analysis of operating modes of hybrid power station with the high level of substitution of organic fuel is made, the necessity of use of energy storage is proved. The original architecture of creation and a way of management of operating modes of a hybrid power generating system based on use of the double-circuit storage of energy providing the optimum modes of a charge of rechargeable batteries is offered. In a such way their safety and the maximum operation life is ensured.","PeriodicalId":371743,"journal":{"name":"2019 International Conference on Electrotechnical Complexes and Systems (ICOECS)","volume":"148 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":"132122138","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}
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}
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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：