Pub Date : 2020-09-01DOI: 10.1109/UralCon49858.2020.9216241
V. Pavlov, I. G. Peregudova
The conditions for self-starting high voltage electric drives at voltage swing have been studied. The drivers remain connected to the busbar during the voltage swing. Thus, the running out of the electric drives during the quiescent periods is group and determined by the inertia moment and the rate of generated voltage run down in the most high-powered drive of the disconnected group. If the group includes synchronous electric motors, the rundown of others is commonly determined by the characteristics of the most powerful of them. The latter under normal operating conditions have the electromotance close to the voltage value in the network and at the rundown its value decreases slower than in induction motors. When the voltage in the supplying network recovers the residual electromotive force in these motors is significant and the total inrush current is determined by the phase shift in the system and the motor electromotance. If the variation between phase angles is 180°, then the inrush will be the most significant, when the phase angles are similar the inrush is minimal. The results of simulation experiments in the form of mathematical models for operational schemes: boosters - high voltage electric drives - turbo mechanisms - industrial pipelines are applied in developing practical self-starting circuits for high voltage electric drives.
{"title":"Study of Conditions for Group Self- Starting High-Voltage Electric Drives in Turbo Mechanisms","authors":"V. Pavlov, I. G. Peregudova","doi":"10.1109/UralCon49858.2020.9216241","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216241","url":null,"abstract":"The conditions for self-starting high voltage electric drives at voltage swing have been studied. The drivers remain connected to the busbar during the voltage swing. Thus, the running out of the electric drives during the quiescent periods is group and determined by the inertia moment and the rate of generated voltage run down in the most high-powered drive of the disconnected group. If the group includes synchronous electric motors, the rundown of others is commonly determined by the characteristics of the most powerful of them. The latter under normal operating conditions have the electromotance close to the voltage value in the network and at the rundown its value decreases slower than in induction motors. When the voltage in the supplying network recovers the residual electromotive force in these motors is significant and the total inrush current is determined by the phase shift in the system and the motor electromotance. If the variation between phase angles is 180°, then the inrush will be the most significant, when the phase angles are similar the inrush is minimal. The results of simulation experiments in the form of mathematical models for operational schemes: boosters - high voltage electric drives - turbo mechanisms - industrial pipelines are applied in developing practical self-starting circuits for high voltage electric drives.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115913872","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 : 2020-09-01DOI: 10.1109/UralCon49858.2020.9216249
A. Savenko, P. Savenko
The problem related the existence of power common mode and power exchange oscillations during the parallel operation of synchronous generators in autonomous electrical complexes is considered. A mathematical model, which allows the studying electrical system, has been developed. A method for dependence customization charts designing of the power exchange oscillations amplitude on the backlash gaps in the control circuits of the diesel generator speed has been obtained. The use of such customization charts allows one to introduce recommendations on limiting the amplitude of exchange power oscillations in regulatory documents, both a general nature and specifically for certain equipment type. The customization charts also make it possible to determine the gap backlash in the frequency control loop with the help of the measured amplitudes of the power exchange oscillations. The amplitude's values and period of the power common mode oscillations in the entire possible settings' range of the object being studied are obtained using mathematical simulation methods. A methodology for customization charts designing has been developed. This methodology allows designing dependence customization charts of the amplitude and period of power common mode oscillations on the values of transmission coefficients and speeding settings of the governors of diesel generators. Using these customization charts allows you to apply the method for eliminating exchange power oscillations, taking into account the possible occurrence of power common mode oscillations. Customization charts designing for the amplitude and period of the power common mode oscillations makes it possible to understand the trend in the amplitude and period of the power common mode oscilations and carry out an in-depth analysis of the operation of the autonomous electrical system.
{"title":"Analysis of Power Oscillations Parameters in Autonomous Electrical Complexes Using the Method of Customization Charts Designing","authors":"A. Savenko, P. Savenko","doi":"10.1109/UralCon49858.2020.9216249","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216249","url":null,"abstract":"The problem related the existence of power common mode and power exchange oscillations during the parallel operation of synchronous generators in autonomous electrical complexes is considered. A mathematical model, which allows the studying electrical system, has been developed. A method for dependence customization charts designing of the power exchange oscillations amplitude on the backlash gaps in the control circuits of the diesel generator speed has been obtained. The use of such customization charts allows one to introduce recommendations on limiting the amplitude of exchange power oscillations in regulatory documents, both a general nature and specifically for certain equipment type. The customization charts also make it possible to determine the gap backlash in the frequency control loop with the help of the measured amplitudes of the power exchange oscillations. The amplitude's values and period of the power common mode oscillations in the entire possible settings' range of the object being studied are obtained using mathematical simulation methods. A methodology for customization charts designing has been developed. This methodology allows designing dependence customization charts of the amplitude and period of power common mode oscillations on the values of transmission coefficients and speeding settings of the governors of diesel generators. Using these customization charts allows you to apply the method for eliminating exchange power oscillations, taking into account the possible occurrence of power common mode oscillations. Customization charts designing for the amplitude and period of the power common mode oscillations makes it possible to understand the trend in the amplitude and period of the power common mode oscilations and carry out an in-depth analysis of the operation of the autonomous electrical system.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114243504","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 : 2020-09-01DOI: 10.1109/UralCon49858.2020.9216300
A. Bogdan, V. A. Bogdan, K. A. Garkavyi
The creation of integrated energy supply systems that use different energy sources by nature and energy potential requires the development of methods for their optimal application. Distributed generation based on photovoltaic systems is of interest to scientists and specialists, as it has a large impact on power losses in distribution networks and voltage deviation in consumers. An analytical determination of the global minimum of losses in the supply line with a combined-unevenly distributed load was carried out in this paper. The optimal power of an additional power source based on a photovoltaic system to reduce power losses in the supply line with such a load was determined. It is shown that the losses in the supply line when connecting an additional source of optimal power to the optimal point, depending on the type of load distribution, can decrease from 8 to 10 times.
{"title":"The Influence of Power Load Distribution on Losses in the Line when Connecting Solar Panels","authors":"A. Bogdan, V. A. Bogdan, K. A. Garkavyi","doi":"10.1109/UralCon49858.2020.9216300","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216300","url":null,"abstract":"The creation of integrated energy supply systems that use different energy sources by nature and energy potential requires the development of methods for their optimal application. Distributed generation based on photovoltaic systems is of interest to scientists and specialists, as it has a large impact on power losses in distribution networks and voltage deviation in consumers. An analytical determination of the global minimum of losses in the supply line with a combined-unevenly distributed load was carried out in this paper. The optimal power of an additional power source based on a photovoltaic system to reduce power losses in the supply line with such a load was determined. It is shown that the losses in the supply line when connecting an additional source of optimal power to the optimal point, depending on the type of load distribution, can decrease from 8 to 10 times.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115629322","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 : 2020-09-01DOI: 10.1109/UralCon49858.2020.9216275
M. Plieva, Evgeniya Gurieva, Elina Lysokon
This article discusses the main ways to clean insulators of overhead power lines and open distribution devices of power plants and substations from pollution that leads to disruption and emergency shutdowns of overhead lines. The main measures necessary for preventing overlaps of external insulation of overhead power lines and open switchgear of stations and substations and improving the reliability of power supply are proposed. The influence of water resistance on the jet leakage current, the influence of water pressure on the jet leakage currents, the electrical strength of continuous water jets, and the hydrodynamic properties of continuous water jets necessary for fast and high-quality cleaning of insulation from contamination are considered. It is shown that the problem associated with the impact of short-term power supply disruptions on the work of consumers of electric energy becomes more acute as the complexity of technological processes of enterprises and the use of automation tools.
{"title":"Analysis of Different Modes of Cleaning Insulators of Air Transmission Lines in Mountain Conditions","authors":"M. Plieva, Evgeniya Gurieva, Elina Lysokon","doi":"10.1109/UralCon49858.2020.9216275","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216275","url":null,"abstract":"This article discusses the main ways to clean insulators of overhead power lines and open distribution devices of power plants and substations from pollution that leads to disruption and emergency shutdowns of overhead lines. The main measures necessary for preventing overlaps of external insulation of overhead power lines and open switchgear of stations and substations and improving the reliability of power supply are proposed. The influence of water resistance on the jet leakage current, the influence of water pressure on the jet leakage currents, the electrical strength of continuous water jets, and the hydrodynamic properties of continuous water jets necessary for fast and high-quality cleaning of insulation from contamination are considered. It is shown that the problem associated with the impact of short-term power supply disruptions on the work of consumers of electric energy becomes more acute as the complexity of technological processes of enterprises and the use of automation tools.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127347730","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 : 2020-09-01DOI: 10.1109/UralCon49858.2020.9216308
L. M. Inakhodova, A. Frolov, K. Frolov
Since the advent of the first prototypes of power transformers with an amorphous core, of particular interest has been the prototyping and calculation of models of power transformers with the possibility of studying the influence of various factors on the properties of the finished product. However, an attempt to use HTSC windings in power transformers led not only to a significant improvement in the electrophysical properties of such transformers, but also to a significant complication of the modeling process of such a transformer, due to the appearance of additional external factors, such as a change in the electrical properties of the HTSC conductor depending on the nature of the load and operating modes of such a transformer. Based on this, the article highlights the methods of accounting for such effects during the construction of a mathematical model of a power transformer with HTSC windings.
{"title":"Issues of Development of the Mathematical Model of Superconducting Transformer with an Amorphous Core","authors":"L. M. Inakhodova, A. Frolov, K. Frolov","doi":"10.1109/UralCon49858.2020.9216308","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216308","url":null,"abstract":"Since the advent of the first prototypes of power transformers with an amorphous core, of particular interest has been the prototyping and calculation of models of power transformers with the possibility of studying the influence of various factors on the properties of the finished product. However, an attempt to use HTSC windings in power transformers led not only to a significant improvement in the electrophysical properties of such transformers, but also to a significant complication of the modeling process of such a transformer, due to the appearance of additional external factors, such as a change in the electrical properties of the HTSC conductor depending on the nature of the load and operating modes of such a transformer. Based on this, the article highlights the methods of accounting for such effects during the construction of a mathematical model of a power transformer with HTSC windings.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132712439","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 : 2020-09-01DOI: 10.1109/UralCon49858.2020.9216268
A. Sokolov, T. Shadrikov
The development of the power electronics industry has allowed the creation of highly efficient compact and powerful transistor voltage converters. Such voltage converters together with rectifiers and high frequency power transformers of increased frequency can be combined into increased frequency electrical power systems (IFEPS). Such IFEPS can be successfully used to realize the heat treatment of various composite materials using increased frequency currents. This publication describes the results of development and application IFEPS to organize a fundamentally new method of heat treatment of composite materials - electrothermal treatment with increased frequency currents. Methods of organizing power supply in enterprises using electrothermal processing are considered.
{"title":"Increased Frequency Alternating Current Systems for the Electrothermal Processing of Composite Materials","authors":"A. Sokolov, T. Shadrikov","doi":"10.1109/UralCon49858.2020.9216268","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216268","url":null,"abstract":"The development of the power electronics industry has allowed the creation of highly efficient compact and powerful transistor voltage converters. Such voltage converters together with rectifiers and high frequency power transformers of increased frequency can be combined into increased frequency electrical power systems (IFEPS). Such IFEPS can be successfully used to realize the heat treatment of various composite materials using increased frequency currents. This publication describes the results of development and application IFEPS to organize a fundamentally new method of heat treatment of composite materials - electrothermal treatment with increased frequency currents. Methods of organizing power supply in enterprises using electrothermal processing are considered.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133254904","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 : 2020-09-01DOI: 10.1109/UralCon49858.2020.9216246
B. Kavalerov, S. Shutemov, M. M. Muha
The paper examines an experimental research of the cylindrical linear ac electronic motor for the executive mechanism of direct material application. The design of the created cylindrical linear ac electronic motor is considered. The ratios between the frequency and voltage of the frequency converter to obtain the required engine current and thrust power have been found. Experimental researches of the engine were carried out to determine the forces of thrust and friction, with different inductor structures. Friction of the secondary element about the inductor arises due to the presence of “gravity effort”. The working force of the cylindrical linear ac electronic motor is the axial force, which creates a reciprocating motion of the secondary element. “Gravity effort” occurs due to the displacement of the secondary element of the cylindrical linear ac electronic motor relative to the inductor axis. Herewith, the gap between the inductor and the secondary element is uneven. As a result of experimental researches it turned out that the “gravity effort” and therefore friction, significantly. As a result, the resulting friction must be taken into account in the work of the CTD. Based on the experimental data, it was concluded that nonmagnetic centralizers were needed. They are arranged in a certain way, to reduce the forces of friction. It was also decided to change the inductor's design to an axisymmetrical one. As a result, the “gravity effort” and the amount of friction are significantly reduced, and the force of thrust increases.
{"title":"Experimental Researches of the Cylindrical Linear AC Electronic Motor for the Executive Mechanism for Materials Application","authors":"B. Kavalerov, S. Shutemov, M. M. Muha","doi":"10.1109/UralCon49858.2020.9216246","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216246","url":null,"abstract":"The paper examines an experimental research of the cylindrical linear ac electronic motor for the executive mechanism of direct material application. The design of the created cylindrical linear ac electronic motor is considered. The ratios between the frequency and voltage of the frequency converter to obtain the required engine current and thrust power have been found. Experimental researches of the engine were carried out to determine the forces of thrust and friction, with different inductor structures. Friction of the secondary element about the inductor arises due to the presence of “gravity effort”. The working force of the cylindrical linear ac electronic motor is the axial force, which creates a reciprocating motion of the secondary element. “Gravity effort” occurs due to the displacement of the secondary element of the cylindrical linear ac electronic motor relative to the inductor axis. Herewith, the gap between the inductor and the secondary element is uneven. As a result of experimental researches it turned out that the “gravity effort” and therefore friction, significantly. As a result, the resulting friction must be taken into account in the work of the CTD. Based on the experimental data, it was concluded that nonmagnetic centralizers were needed. They are arranged in a certain way, to reduce the forces of friction. It was also decided to change the inductor's design to an axisymmetrical one. As a result, the “gravity effort” and the amount of friction are significantly reduced, and the force of thrust increases.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131895351","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 : 2020-09-01DOI: 10.1109/UralCon49858.2020.9216295
V. Nezevak, V. Cheremisin
In this article assessment questions of the electric energy storage units promising use in the traction power supply systems are considered. Assessment of storage units use is considered in the influence aspect on indicators of the traction power supply system load capacity average currents and voltages, temperature of heating, loading coefficients, minimum inter train interval and transportation capacity. The given calculations results are received with the help of simulation modeling for a model of one of the railways areas of the Trans Siberian railway. The inclusion voltage influence of the electric energy storage unit on work indicators of the traction power supply system in different operating modes is shown. On example of the considered area the assessment use influence of the electric energy storage units on the load capacity level reduction in the traction power supply system elements, the reduction of train-to-train interval and the increase of transportation capacity are received.
{"title":"Prediction of Bandwidth Increase of Railways Areas at the Change Expense of The Direct Current Traction Power Supply System Characteristics by Implementation of Electric Storage Units","authors":"V. Nezevak, V. Cheremisin","doi":"10.1109/UralCon49858.2020.9216295","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216295","url":null,"abstract":"In this article assessment questions of the electric energy storage units promising use in the traction power supply systems are considered. Assessment of storage units use is considered in the influence aspect on indicators of the traction power supply system load capacity average currents and voltages, temperature of heating, loading coefficients, minimum inter train interval and transportation capacity. The given calculations results are received with the help of simulation modeling for a model of one of the railways areas of the Trans Siberian railway. The inclusion voltage influence of the electric energy storage unit on work indicators of the traction power supply system in different operating modes is shown. On example of the considered area the assessment use influence of the electric energy storage units on the load capacity level reduction in the traction power supply system elements, the reduction of train-to-train interval and the increase of transportation capacity are received.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114707036","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 : 2020-09-01DOI: 10.1109/UralCon49858.2020.9216286
V. I. Kotenev, A. V. Kotenev, Aleksandr D. Stulov
Reactive power (RP) factor automatic control system (ACS) applying the synchronous motor RP control as a function of the main perturbance effects, i.e. deviations of the real and reactive power in the power supply system components has been considered. Its use allows reducing the power loss during transmission, increasing the network transfer capability, and meeting regulatory requirements for the reactive power factors applicable to the consumers in the hours of the minimum and maximum daily loads of an enterprise. The control system includes a step-down transformer, a capacitor, asynchronous and synchronous motors, the excitation current control loop, and the real and reactive power communication links with relevant power transducers. The control system operating in a steady-state mode has been considered, the main requirement for which is to ensure a given error at the end of the billing period. The control system error $Delta {tg} varphi$ without and with a correction device is 0.024 and 0.01, respectively. The synchronous motor stability with negative excitation current self-feedback as the main control system component is ensured by adjusting this loop by the criterion of the weighted absolute error integral minimum. Herewith, the control quality indicators have been obtained: the response time does not exceed 0.1 s, and the overcontrol is less than five percent, which allows eliminating the reactive current overload of a synchronous motor. The control system operability has been approved on an experimental unit with asynchronous motors of a general-purpose industrial version and an EC52-4-M101 synchronous machine. This control system can be used in power supply systems of industrial enterprises, which include asynchronous and synchronous motors.
{"title":"Controlling the Reactive Power Factor of a Combined Load Power Supply System and the Correction of Program as a Function of Current Power Consumption","authors":"V. I. Kotenev, A. V. Kotenev, Aleksandr D. Stulov","doi":"10.1109/UralCon49858.2020.9216286","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216286","url":null,"abstract":"Reactive power (RP) factor automatic control system (ACS) applying the synchronous motor RP control as a function of the main perturbance effects, i.e. deviations of the real and reactive power in the power supply system components has been considered. Its use allows reducing the power loss during transmission, increasing the network transfer capability, and meeting regulatory requirements for the reactive power factors applicable to the consumers in the hours of the minimum and maximum daily loads of an enterprise. The control system includes a step-down transformer, a capacitor, asynchronous and synchronous motors, the excitation current control loop, and the real and reactive power communication links with relevant power transducers. The control system operating in a steady-state mode has been considered, the main requirement for which is to ensure a given error at the end of the billing period. The control system error $Delta {tg} varphi$ without and with a correction device is 0.024 and 0.01, respectively. The synchronous motor stability with negative excitation current self-feedback as the main control system component is ensured by adjusting this loop by the criterion of the weighted absolute error integral minimum. Herewith, the control quality indicators have been obtained: the response time does not exceed 0.1 s, and the overcontrol is less than five percent, which allows eliminating the reactive current overload of a synchronous motor. The control system operability has been approved on an experimental unit with asynchronous motors of a general-purpose industrial version and an EC52-4-M101 synchronous machine. This control system can be used in power supply systems of industrial enterprises, which include asynchronous and synchronous motors.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122671181","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 : 2020-09-01DOI: 10.1109/UralCon49858.2020.9216230
G. Ryavkin, E. Solomin, O. J. Abdalgbar
The disadvantages of fossil fuels are presented. The way to improve the efficiency of solar panels through the use of solar tracking systems (STS) was analyzed. Wind loads have been calculated, examples of destruction of solar power plants by natural disasters are presented. A concept for a new type of solar tracker was described. In developing the algorithm for operation of STS, astronomical formulas for motion of the Sun were used. To create a control system, MatLab Simulink software was used. As a result of the work, was created an imitation model that provides high precision tracking of the Sun. A comparison with the high-precision NREL algorithm was also made. Conclusions are drawn on the ways of new type of tracker use.
{"title":"Solar Tracker with Self-Deploying System","authors":"G. Ryavkin, E. Solomin, O. J. Abdalgbar","doi":"10.1109/UralCon49858.2020.9216230","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216230","url":null,"abstract":"The disadvantages of fossil fuels are presented. The way to improve the efficiency of solar panels through the use of solar tracking systems (STS) was analyzed. Wind loads have been calculated, examples of destruction of solar power plants by natural disasters are presented. A concept for a new type of solar tracker was described. In developing the algorithm for operation of STS, astronomical formulas for motion of the Sun were used. To create a control system, MatLab Simulink software was used. As a result of the work, was created an imitation model that provides high precision tracking of the Sun. A comparison with the high-precision NREL algorithm was also made. Conclusions are drawn on the ways of new type of tracker use.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123457441","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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