Pub Date : 2019-10-01DOI: 10.1109/URALCON.2019.8877626
A. Stulov, A. Tikhonov, A. Karzhevin
The main transient processes in a special transformer operation mode are considered. Circuit models closed to field models in terms of accuracy and significantly exceeding computation speed are used. The adjusted model for simulation and investigation transient processes in the three-phase special transformer is developed. The structure and the operating principle of the model are described. Technology of a numerical simulation of transient physical processes in the CAE system of power transformers is considered. The main results and conclusions of the investigation transient processes in the special transformer are provided. The model is efficient for modern designing of special transformers.
{"title":"Model of Special Transformer for Transient Processes Analysis in Three-Phase Mode","authors":"A. Stulov, A. Tikhonov, A. Karzhevin","doi":"10.1109/URALCON.2019.8877626","DOIUrl":"https://doi.org/10.1109/URALCON.2019.8877626","url":null,"abstract":"The main transient processes in a special transformer operation mode are considered. Circuit models closed to field models in terms of accuracy and significantly exceeding computation speed are used. The adjusted model for simulation and investigation transient processes in the three-phase special transformer is developed. The structure and the operating principle of the model are described. Technology of a numerical simulation of transient physical processes in the CAE system of power transformers is considered. The main results and conclusions of the investigation transient processes in the special transformer are provided. The model is efficient for modern designing of special transformers.","PeriodicalId":277973,"journal":{"name":"2019 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"24 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":"128000086","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/URALCON.2019.8877639
Yuri V. Zubkov, Y. Makarichev, V. Antropov
The paper covers the design of an integrated brushless excitation direct-current generator (IBEDCG), where the exciter and the main generator are located in the same magnetic system. When sizing the active part of such machines, one must choose and distribute the electromagnetic loads: magnetic flux density in the main-generator and exciter gap, and stator/rotor line current density. The research team investigated the magnetic-field factors (the estimated pole overlap factor, the form factor of the excitation flux and the EMF form factor) as a function of the exciter excitation winding design and magnetic-system saturation. The article compares the results of the FE simulation and analytical calculation of these coefficients. The suggestions on choosing the electromagnetic loads ratio of the exciter and the main generator are given. The paper provides specifications of a prototype generator for a special vehicle on tracks.
{"title":"Finding Electromagnetic Loads and Magnetic-Field Factors in Design of Integrated Brushless Excitation DC Generator","authors":"Yuri V. Zubkov, Y. Makarichev, V. Antropov","doi":"10.1109/URALCON.2019.8877639","DOIUrl":"https://doi.org/10.1109/URALCON.2019.8877639","url":null,"abstract":"The paper covers the design of an integrated brushless excitation direct-current generator (IBEDCG), where the exciter and the main generator are located in the same magnetic system. When sizing the active part of such machines, one must choose and distribute the electromagnetic loads: magnetic flux density in the main-generator and exciter gap, and stator/rotor line current density. The research team investigated the magnetic-field factors (the estimated pole overlap factor, the form factor of the excitation flux and the EMF form factor) as a function of the exciter excitation winding design and magnetic-system saturation. The article compares the results of the FE simulation and analytical calculation of these coefficients. The suggestions on choosing the electromagnetic loads ratio of the exciter and the main generator are given. The paper provides specifications of a prototype generator for a special vehicle on tracks.","PeriodicalId":277973,"journal":{"name":"2019 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"21 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":"126984532","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/URALCON.2019.8877690
A. Solomin, V. A. Solomin, Nadezhda A. Trubitsina
Being exceptionally innovative, the development and research on high-speed magnetic levitation transport (MLT) has received much attention worldwide. The literature review shows an increased activity in this field in Russia over the last two decades. Regular research are conducted in Russian University of Transport, Saint-Petersburg and Rostov State Transport Universities. The status of MLT development makes it possible to employ Linear Induction Motor (LIM) for the traction of the maglev vehicles. The systems of high-speed MLT with tractive LIM use conductive bus bars as an anchor called secondary element (SE). The currents in the three-phase winding of the LIM inductor create a traveling magnetic field intersecting the SE conductive part and inducing the electromotive force (EMF), which in turn causes the flow of secondary currents. The interaction of the traveling magnetic field with the induced SE current will give rise to LIM traction. Finding the current in the LIM inductor is crucial for determining the tractive effort. The paper focuses on linear induction motor with transverse magnetic flux (LIMTMF). The conducted research was aimed at considering and solving the problem of defining the inductor current in the middle and frontal parts of the LIMTMF winding. The obtained results made it possible to increase the reliability and precision of the tractive effort calculations.
{"title":"Approaches to Modeling Current Distribution in Winding of Linear Induction Motor with Transverse Magnetic Flux","authors":"A. Solomin, V. A. Solomin, Nadezhda A. Trubitsina","doi":"10.1109/URALCON.2019.8877690","DOIUrl":"https://doi.org/10.1109/URALCON.2019.8877690","url":null,"abstract":"Being exceptionally innovative, the development and research on high-speed magnetic levitation transport (MLT) has received much attention worldwide. The literature review shows an increased activity in this field in Russia over the last two decades. Regular research are conducted in Russian University of Transport, Saint-Petersburg and Rostov State Transport Universities. The status of MLT development makes it possible to employ Linear Induction Motor (LIM) for the traction of the maglev vehicles. The systems of high-speed MLT with tractive LIM use conductive bus bars as an anchor called secondary element (SE). The currents in the three-phase winding of the LIM inductor create a traveling magnetic field intersecting the SE conductive part and inducing the electromotive force (EMF), which in turn causes the flow of secondary currents. The interaction of the traveling magnetic field with the induced SE current will give rise to LIM traction. Finding the current in the LIM inductor is crucial for determining the tractive effort. The paper focuses on linear induction motor with transverse magnetic flux (LIMTMF). The conducted research was aimed at considering and solving the problem of defining the inductor current in the middle and frontal parts of the LIMTMF winding. The obtained results made it possible to increase the reliability and precision of the tractive effort calculations.","PeriodicalId":277973,"journal":{"name":"2019 International Ural Conference on Electrical Power Engineering (UralCon)","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":"129696961","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/URALCON.2019.8877621
M. Urakseev, K. Vazhdaev, A. Sagadeev
The paper proves the relevance of the development of a transformer oil temperature contactless control device for a substation using an Raman-Nath acousto-optic cell. The study aims at the implementation of structural synthesis and the development of a new, improved device for the contactless control of the temperature of transformer oil at a substation employing a Raman-Nath acousto-optic cell, which can be successfully used in power transformers for various purposes and information-measuring systems. As a result of structural synthesis, a new device for contactless control of transformer oil temperature at a substation was developed using an Raman-Nath acousto-optic cell with improved characteristics achieved by a combination of design and technological methods.
{"title":"Contactless Control of Transformer Oil Temperature at Substation Using Raman-Nath Acousto-Optic Cell","authors":"M. Urakseev, K. Vazhdaev, A. Sagadeev","doi":"10.1109/URALCON.2019.8877621","DOIUrl":"https://doi.org/10.1109/URALCON.2019.8877621","url":null,"abstract":"The paper proves the relevance of the development of a transformer oil temperature contactless control device for a substation using an Raman-Nath acousto-optic cell. The study aims at the implementation of structural synthesis and the development of a new, improved device for the contactless control of the temperature of transformer oil at a substation employing a Raman-Nath acousto-optic cell, which can be successfully used in power transformers for various purposes and information-measuring systems. As a result of structural synthesis, a new device for contactless control of transformer oil temperature at a substation was developed using an Raman-Nath acousto-optic cell with improved characteristics achieved by a combination of design and technological methods.","PeriodicalId":277973,"journal":{"name":"2019 International Ural Conference on Electrical Power Engineering (UralCon)","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":"128677701","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/URALCON.2019.8877647
N. Lopatkin
Based on the representations in barycentric coordinates on a balanced supply line-to-line voltages triangle the resulting complex-plane static phasors of the zero sequence voltage and of the related unbalance factor are obtained for the balanced mode of the three-phase supplying. It is supposed that the voltages and currents are sinusoidal. The suggested formulae calculations require only RMS voltmeter readings of the three line-to-neutral load voltages and could be used as a practical engineering tool to implement a three-phase load circuit monitoring, diagnostics, protection and voltages unbalance compensation. Physical interpretation of the neutral bias voltage phasor barycentric coordinates, corresponding to the coefficients of participation of the individual phase loads in this bias voltage generating, is also presented as the functions of the phase loads electrical admittances parameters.
{"title":"Zero Sequence Voltage Phasor Positioning under Balanced Three-Phase Supply","authors":"N. Lopatkin","doi":"10.1109/URALCON.2019.8877647","DOIUrl":"https://doi.org/10.1109/URALCON.2019.8877647","url":null,"abstract":"Based on the representations in barycentric coordinates on a balanced supply line-to-line voltages triangle the resulting complex-plane static phasors of the zero sequence voltage and of the related unbalance factor are obtained for the balanced mode of the three-phase supplying. It is supposed that the voltages and currents are sinusoidal. The suggested formulae calculations require only RMS voltmeter readings of the three line-to-neutral load voltages and could be used as a practical engineering tool to implement a three-phase load circuit monitoring, diagnostics, protection and voltages unbalance compensation. Physical interpretation of the neutral bias voltage phasor barycentric coordinates, corresponding to the coefficients of participation of the individual phase loads in this bias voltage generating, is also presented as the functions of the phase loads electrical admittances parameters.","PeriodicalId":277973,"journal":{"name":"2019 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"50 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":"122575863","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/URALCON.2019.8877620
E. Tretyakov, G. Golovnev
The article presents an algorithm of voltage coordinated management in distributive electric railway networks using the sources of the reactive capacity based on the agent approach. Voltage management in the electric network is implemented by the managing system coordinated between all local regulators inside the controlled zone. The authors present an approach to the coordination of the local regulators operation based on their possibilities ranking by the type of the action to achieve the global management purpose. By means of operational voltage management in the electric network it is proposed to use the linearization of the management task from behind the almost linear dependence of the comparative powers growth on the loads of separate units as a matrix of the sensitivity. The authors conducted the simulation and mathematical modeling of the implementation of the proposed algorithm in the distributive electric railways network and there.
{"title":"Voltage Control in Distribution Electric Rail Networks Using Reactive Power Sources Based on Agent-Based Approach","authors":"E. Tretyakov, G. Golovnev","doi":"10.1109/URALCON.2019.8877620","DOIUrl":"https://doi.org/10.1109/URALCON.2019.8877620","url":null,"abstract":"The article presents an algorithm of voltage coordinated management in distributive electric railway networks using the sources of the reactive capacity based on the agent approach. Voltage management in the electric network is implemented by the managing system coordinated between all local regulators inside the controlled zone. The authors present an approach to the coordination of the local regulators operation based on their possibilities ranking by the type of the action to achieve the global management purpose. By means of operational voltage management in the electric network it is proposed to use the linearization of the management task from behind the almost linear dependence of the comparative powers growth on the loads of separate units as a matrix of the sensitivity. The authors conducted the simulation and mathematical modeling of the implementation of the proposed algorithm in the distributive electric railways network and there.","PeriodicalId":277973,"journal":{"name":"2019 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"5 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":"131649179","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/URALCON.2019.8877624
S. R. Chorshanbiev, G. Shvedov, Firdavs O. Ismoilov
In recent years, the world practice shows that in many In recent years, the world practice shows that in many developed countries the use of renewable energy sources has become an important factor for the sustainable development of their energy sector. The integration of solar power plants into the electric networks is one of the most important directions for the development of energy, but the issue of the influence of solar generation on the modes of electric distribution networks and the relative power loss is acute. This paper analyzes the effect of distributed solar generation on power losses and the configuration of the load curve. The problem of excessive solar generation at the weekend causes the flow of active power from the consumer to the power system, which leads to a change in the configuration of the load curve and an increase in the relative power losses. A calculation method is proposed to minimize relative power losses in electric networks, which allows improving the efficiency of the electric grid company in the conditions of integration of distributed solar generation. Also, to confirm the correctness of the calculation results of the proposed method, variational calculations were carried out.
{"title":"Development of Method for Photovoltaic Generation Control by Electrical Network Relative Power Losses Minimization Criteria","authors":"S. R. Chorshanbiev, G. Shvedov, Firdavs O. Ismoilov","doi":"10.1109/URALCON.2019.8877624","DOIUrl":"https://doi.org/10.1109/URALCON.2019.8877624","url":null,"abstract":"In recent years, the world practice shows that in many In recent years, the world practice shows that in many developed countries the use of renewable energy sources has become an important factor for the sustainable development of their energy sector. The integration of solar power plants into the electric networks is one of the most important directions for the development of energy, but the issue of the influence of solar generation on the modes of electric distribution networks and the relative power loss is acute. This paper analyzes the effect of distributed solar generation on power losses and the configuration of the load curve. The problem of excessive solar generation at the weekend causes the flow of active power from the consumer to the power system, which leads to a change in the configuration of the load curve and an increase in the relative power losses. A calculation method is proposed to minimize relative power losses in electric networks, which allows improving the efficiency of the electric grid company in the conditions of integration of distributed solar generation. Also, to confirm the correctness of the calculation results of the proposed method, variational calculations were carried out.","PeriodicalId":277973,"journal":{"name":"2019 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"49 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":"115696802","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/URALCON.2019.8877662
A. Varganova, A. Shemetov
The article discusses the on-site optimization algorithm of industrial thermal power plants with heterogeneous generating sources with capacities ranging from a few to tens of megawatts. The optimization algorithm is based on a dynamic programming method in combination with a modified sequential equivalent method. The optimization criterion is the minimum of the reduced cost of steam required for the generation of electrical power, going to the heating and production selections, as well as its own needs. As a result of the optimization task, the economically feasible loads of generators and power boilers are determined. The main initial data for optimization are technical and economic models of turbine generators and boiler units, which represent the dependence of the active or thermal power on the cost of a unit of fresh steam. The models are constructed in tabular form and take into account the operating characteristics of power plants. Optimization calculations are carried out for normal, repair and after-failure operation of electrical installations.
{"title":"Integrated in-Station Optimization of Industrial Thermal Power Plants","authors":"A. Varganova, A. Shemetov","doi":"10.1109/URALCON.2019.8877662","DOIUrl":"https://doi.org/10.1109/URALCON.2019.8877662","url":null,"abstract":"The article discusses the on-site optimization algorithm of industrial thermal power plants with heterogeneous generating sources with capacities ranging from a few to tens of megawatts. The optimization algorithm is based on a dynamic programming method in combination with a modified sequential equivalent method. The optimization criterion is the minimum of the reduced cost of steam required for the generation of electrical power, going to the heating and production selections, as well as its own needs. As a result of the optimization task, the economically feasible loads of generators and power boilers are determined. The main initial data for optimization are technical and economic models of turbine generators and boiler units, which represent the dependence of the active or thermal power on the cost of a unit of fresh steam. The models are constructed in tabular form and take into account the operating characteristics of power plants. Optimization calculations are carried out for normal, repair and after-failure operation of electrical installations.","PeriodicalId":277973,"journal":{"name":"2019 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"209 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":"114842167","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/URALCON.2019.8877634
S. Gandzha, A. Kotov, N. Neustroev
The article shows the relevance of creating methods of optimal design of Electromechanical devices, in particular, the methods for designing double-feed machines, which have currently found great relevance and wide application in the wind power industry of renewable energy sources. The problem of developing the methods of optimal design of electric machines is presented. The method for calculating the asynchronous - synchronous generator through generalized variables is presented. The generalized variables fully describing the geometry of the magnetic circuit of the asynchronous - synchronous generator are determined. The authors obtain a final formula of the conclusion of the geometrical sizes of the basic elements of magnetic circuit, using the accepted generalized variables. The advantages of the method for calculating the double-feed machine through generalized variables for solving problems of optimal design of the machines of this class are revealed.
{"title":"Geometry Optimization of Asynchronous Synchronous Alternator with Using Generalized Variables","authors":"S. Gandzha, A. Kotov, N. Neustroev","doi":"10.1109/URALCON.2019.8877634","DOIUrl":"https://doi.org/10.1109/URALCON.2019.8877634","url":null,"abstract":"The article shows the relevance of creating methods of optimal design of Electromechanical devices, in particular, the methods for designing double-feed machines, which have currently found great relevance and wide application in the wind power industry of renewable energy sources. The problem of developing the methods of optimal design of electric machines is presented. The method for calculating the asynchronous - synchronous generator through generalized variables is presented. The generalized variables fully describing the geometry of the magnetic circuit of the asynchronous - synchronous generator are determined. The authors obtain a final formula of the conclusion of the geometrical sizes of the basic elements of magnetic circuit, using the accepted generalized variables. The advantages of the method for calculating the double-feed machine through generalized variables for solving problems of optimal design of the machines of this class are revealed.","PeriodicalId":277973,"journal":{"name":"2019 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"46 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":"116705846","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/URALCON.2019.8877688
S. Voronin, Azamdzhon Davlatov, B. Kosimov
The article discusses the structure of small hydropower plants (HPP) recently built in Tajikistan. The problems arising in the course of their operation are noted. It is proposed to solve these problems to reconsider the HPP structure so that they can be operated in a stand-alone unattended mode, using simple and reliable basic energy conversion elements. The authors suggest using a centrifugal pump as a turbine, without regulating the rotational speed. The absence of a turbine speed regulator containing movable mechanical devices for regulating the flow of water to the turbine will significantly increase its reliability and simplify state diagnostics operations. As a generator, it is suggested using an unregulated synchronous machine with excitation from permanent magnets. The application of a generator consisting of two structurally complete units, a rotor with permanent magnets and a stator with a winding will also increase its reliability, significantly increase the time of interregional checks, simplifying them. The required output voltage quality and high reliability must be provided with a semiconductor converter. In order to diagnose the state of a power plant, it is proposed, in addition to sensors for mechanical, thermal and electrical values, to include in its composition a complete mathematical model, that is, its digital twin and diagnostics to be carried out, including on the basis of comparison of measured actual and received values from a digital twin. The article also shows the problems arising in the implementation of the proposed structure, and ways to solve them.
{"title":"Development Directions of Power Supply for Rural Areas of Tajikistan","authors":"S. Voronin, Azamdzhon Davlatov, B. Kosimov","doi":"10.1109/URALCON.2019.8877688","DOIUrl":"https://doi.org/10.1109/URALCON.2019.8877688","url":null,"abstract":"The article discusses the structure of small hydropower plants (HPP) recently built in Tajikistan. The problems arising in the course of their operation are noted. It is proposed to solve these problems to reconsider the HPP structure so that they can be operated in a stand-alone unattended mode, using simple and reliable basic energy conversion elements. The authors suggest using a centrifugal pump as a turbine, without regulating the rotational speed. The absence of a turbine speed regulator containing movable mechanical devices for regulating the flow of water to the turbine will significantly increase its reliability and simplify state diagnostics operations. As a generator, it is suggested using an unregulated synchronous machine with excitation from permanent magnets. The application of a generator consisting of two structurally complete units, a rotor with permanent magnets and a stator with a winding will also increase its reliability, significantly increase the time of interregional checks, simplifying them. The required output voltage quality and high reliability must be provided with a semiconductor converter. In order to diagnose the state of a power plant, it is proposed, in addition to sensors for mechanical, thermal and electrical values, to include in its composition a complete mathematical model, that is, its digital twin and diagnostics to be carried out, including on the basis of comparison of measured actual and received values from a digital twin. The article also shows the problems arising in the implementation of the proposed structure, and ways to solve them.","PeriodicalId":277973,"journal":{"name":"2019 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"26 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":"126967045","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：