Pub Date : 2022-10-12DOI: 10.1109/ESS57819.2022.9969286
P. Vasko, Andryi Verbovij, Serhii Pazych
Mathematical and simulation models of the dynamics of the process of water flow rate by a multi-unit hydraulic pumping station powered by wind electric installation taking into account the stochastic change of the instantaneous value of wind speed have been developed. The simulation model implements the solution of differential nonlinear equations describing the dynamics of rotational motion of a two-mass electro-hydro-mechanical system. The mutual influence of one inertial component on another is carried out through the electrical connection between the wind turbine generator and the electric motor of the hydraulic turbine. The model takes into account the nonlinearity of the aerodynamic characteristics of the wind turbine from the speed and angle of rotation of the blades the nonlinearity of the hydromechanical characteristics of the hydraulic turbine from the speed. The results of modeling shown certify the reduction of energy efficiency of wind turbines during the accumulation of their energy at the pumped hydro storage station due to the presence of wind speed pulsations.
{"title":"Simulation modeling of the dynamics of the process of charging the pumped hydro storage station from wind turbine installation","authors":"P. Vasko, Andryi Verbovij, Serhii Pazych","doi":"10.1109/ESS57819.2022.9969286","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969286","url":null,"abstract":"Mathematical and simulation models of the dynamics of the process of water flow rate by a multi-unit hydraulic pumping station powered by wind electric installation taking into account the stochastic change of the instantaneous value of wind speed have been developed. The simulation model implements the solution of differential nonlinear equations describing the dynamics of rotational motion of a two-mass electro-hydro-mechanical system. The mutual influence of one inertial component on another is carried out through the electrical connection between the wind turbine generator and the electric motor of the hydraulic turbine. The model takes into account the nonlinearity of the aerodynamic characteristics of the wind turbine from the speed and angle of rotation of the blades the nonlinearity of the hydromechanical characteristics of the hydraulic turbine from the speed. The results of modeling shown certify the reduction of energy efficiency of wind turbines during the accumulation of their energy at the pumped hydro storage station due to the presence of wind speed pulsations.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125830348","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 : 2022-10-12DOI: 10.1109/ESS57819.2022.9969245
I. Blinov, V. Miroshnyk, P. Shymaniuk
According to current trends in the development of electricity markets, distribution and transmission system operators must purchase electricity to cover their losses in the networks and the wholesale electricity market. By reducing the error in forecasting losses by 1%, this will reduce the cost of compensating for imbalances in the amount of 131.2 million per year, which will reduce tariffs for distribution and transmission of electricity. The study describes a comparative analysis of different architectures of artificial neural networks of deep learning for short-term forecasting of nodal electrical load. A comparison of the results of forecasting artificial neural network architectures and classical forecasting methods was performed. Data from the Northwestern region of the United States and Turkish power system were used. The results of the study show that neural networks of deep learning are superior to classical methods.
{"title":"Short-term Nodal Electrical Load Forecasting with Artificial Neural Networks","authors":"I. Blinov, V. Miroshnyk, P. Shymaniuk","doi":"10.1109/ESS57819.2022.9969245","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969245","url":null,"abstract":"According to current trends in the development of electricity markets, distribution and transmission system operators must purchase electricity to cover their losses in the networks and the wholesale electricity market. By reducing the error in forecasting losses by 1%, this will reduce the cost of compensating for imbalances in the amount of 131.2 million per year, which will reduce tariffs for distribution and transmission of electricity. The study describes a comparative analysis of different architectures of artificial neural networks of deep learning for short-term forecasting of nodal electrical load. A comparison of the results of forecasting artificial neural network architectures and classical forecasting methods was performed. Data from the Northwestern region of the United States and Turkish power system were used. The results of the study show that neural networks of deep learning are superior to classical methods.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"23 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125840394","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 : 2022-10-12DOI: 10.1109/ESS57819.2022.9969301
O. Chernousenko, D. Rindyuk, V. Peshko, I. Bednarska
The paper presents a comparative assessment of the impact of the nature of start-up schedule of the power unit on the cyclic damage of turbine equipment. Two different start-up schedules for real power plants are considered. They differ in the steam parameters and in the duration of some stages of start-up. A mathematical model for calculating low-cycle fatigue in high-temperature turbine rotors is presented. The calculation of the thermal and stress-strain state of the rotor in a non-stationary setting is performed. The areas of concentration of stresses in the rotor are established. It is established that when working on one of the start-up schedules, due to more uniform heating of the flowing part of the turbine and rational start-up time, it was possible to reduce the temperature gradients and the amplitude of stresses in most areas of the rotor. As a result, the permissible number of start-up cycles increased by 15.7%.
{"title":"Effect of Start-up Operating Modes on the Cyclic Damage of Thermal Power Plant Units","authors":"O. Chernousenko, D. Rindyuk, V. Peshko, I. Bednarska","doi":"10.1109/ESS57819.2022.9969301","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969301","url":null,"abstract":"The paper presents a comparative assessment of the impact of the nature of start-up schedule of the power unit on the cyclic damage of turbine equipment. Two different start-up schedules for real power plants are considered. They differ in the steam parameters and in the duration of some stages of start-up. A mathematical model for calculating low-cycle fatigue in high-temperature turbine rotors is presented. The calculation of the thermal and stress-strain state of the rotor in a non-stationary setting is performed. The areas of concentration of stresses in the rotor are established. It is established that when working on one of the start-up schedules, due to more uniform heating of the flowing part of the turbine and rational start-up time, it was possible to reduce the temperature gradients and the amplitude of stresses in most areas of the rotor. As a result, the permissible number of start-up cycles increased by 15.7%.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122313877","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 : 2022-10-12DOI: 10.1109/ESS57819.2022.9969272
I. Blinov, I. Zaitsev, Y. Parus, V. Bereznychenko
The article considers the method of ensuring the control. Method of using means of automatic fault indicators of overhead power lines. The methodology of determining the optimal strategy for the inspection of overhead power lines using fault indicators. The methodology was considers the technological and topological features of overhead power lines. The method of calculating the required number of fault indicators and places of their installation in the electricity network is carried out. The proposed model takes into account the fault indicators of reliability of electricity supply and economic efficiency of their use. The calculation of the assessment of the feasibility of using fault indicators for overhead power lines in the power distribution networks was proposed.
{"title":"Analysis of the Effectiveness Fault Indicators use for Control Overhead Power Lines","authors":"I. Blinov, I. Zaitsev, Y. Parus, V. Bereznychenko","doi":"10.1109/ESS57819.2022.9969272","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969272","url":null,"abstract":"The article considers the method of ensuring the control. Method of using means of automatic fault indicators of overhead power lines. The methodology of determining the optimal strategy for the inspection of overhead power lines using fault indicators. The methodology was considers the technological and topological features of overhead power lines. The method of calculating the required number of fault indicators and places of their installation in the electricity network is carried out. The proposed model takes into account the fault indicators of reliability of electricity supply and economic efficiency of their use. The calculation of the assessment of the feasibility of using fault indicators for overhead power lines in the power distribution networks was proposed.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127030327","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 : 2022-10-12DOI: 10.1109/ESS57819.2022.9969246
M. Ostroverkhov, V. Chumack, M. Kovalenko, Y. Ihnatiuk
The paper considers the creation and research of three-phase magnetoelectric generators with magnetic flux shunting based on serial asynchronous electric motors. This allows you to control the voltage of the generator by changing the current in the stationary electrical winding of the shunt, which is powered by direct current. A three-dimensional field mathematical model of the generator has been developed, which allows to perform electromagnetic calculations of the generator with the set parameters taking into account the influence of finite effects, magnetic scattering fields and their radial-axial nature. The operating characteristics of the experimental sample of the magnetoelectric generator are presented, which show the possibility of voltage control.
{"title":"Magnetoelectric Generator with Magnetic Flux Shunting for Electric Power Complexes","authors":"M. Ostroverkhov, V. Chumack, M. Kovalenko, Y. Ihnatiuk","doi":"10.1109/ESS57819.2022.9969246","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969246","url":null,"abstract":"The paper considers the creation and research of three-phase magnetoelectric generators with magnetic flux shunting based on serial asynchronous electric motors. This allows you to control the voltage of the generator by changing the current in the stationary electrical winding of the shunt, which is powered by direct current. A three-dimensional field mathematical model of the generator has been developed, which allows to perform electromagnetic calculations of the generator with the set parameters taking into account the influence of finite effects, magnetic scattering fields and their radial-axial nature. The operating characteristics of the experimental sample of the magnetoelectric generator are presented, which show the possibility of voltage control.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123589813","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 : 2022-10-12DOI: 10.1109/ESS57819.2022.9969280
Danylo Filyanin, A. Voloshko, V. Kalinchyk, Olexandr Meita, Andrii Zhuravlow, V. Pobigaylo
In recent years, there has been a power consumption increase in large cities due to the intensive development of new neighborhoods and the widespread introduction of powerful electrical appliances. There is also a steady upward trend in non-linear load, largely due to the transition to energy-efficient light sources. In this regard, urban cable networks operate at the limit of their capacity, which means operating with the maximum allowable core temperature limit. The problems of monitoring the temperature of cable insulation are an urgent problem in the electric power industry. One of the most promising areas of research is the development of methods for determining the residual lifetime of cable insulation, which can be calculated from monitoring temperature of insulation and other factors that significantly affect the insulation material. The paper analyzes the possible methods to monitor the cable insulation temperature. Mathematical equations are proposed for an indirect temperature monitoring system for cable using distributed measurements technology.
{"title":"THE MONITORING OF Additional HEATING OF THE CABLE","authors":"Danylo Filyanin, A. Voloshko, V. Kalinchyk, Olexandr Meita, Andrii Zhuravlow, V. Pobigaylo","doi":"10.1109/ESS57819.2022.9969280","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969280","url":null,"abstract":"In recent years, there has been a power consumption increase in large cities due to the intensive development of new neighborhoods and the widespread introduction of powerful electrical appliances. There is also a steady upward trend in non-linear load, largely due to the transition to energy-efficient light sources. In this regard, urban cable networks operate at the limit of their capacity, which means operating with the maximum allowable core temperature limit. The problems of monitoring the temperature of cable insulation are an urgent problem in the electric power industry. One of the most promising areas of research is the development of methods for determining the residual lifetime of cable insulation, which can be calculated from monitoring temperature of insulation and other factors that significantly affect the insulation material. The paper analyzes the possible methods to monitor the cable insulation temperature. Mathematical equations are proposed for an indirect temperature monitoring system for cable using distributed measurements technology.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126318260","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 : 2022-10-12DOI: 10.1109/ESS57819.2022.9969236
V. Gritsyuk, I. Nevliudov, M. Zablodskiy, V. Shynkarenko, Y. Rudniev, L. Ivanov, Dmytro Yanushkevych
The goal of the work is to calculate and analyze the temperature field of the design with the development of recommendations for optimizing the cooling system to ensure the specified output characteristics and safe operation of the device. The calculation was made taking into account the relationship with the electromagnetic field. The resulting temperature distribution patterns indicate that the thermal stress of pump-heat generator is within acceptable limits. The results make it possible to choose the dimensional ratios of the structural elements of the electromechanical pump-heat generator to optimize the parameters of the cooling system and obtain the specified performance indicators.
{"title":"Numerical Analysis of Thermal Processes in an Electromechanical Pump-Heat Generator","authors":"V. Gritsyuk, I. Nevliudov, M. Zablodskiy, V. Shynkarenko, Y. Rudniev, L. Ivanov, Dmytro Yanushkevych","doi":"10.1109/ESS57819.2022.9969236","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969236","url":null,"abstract":"The goal of the work is to calculate and analyze the temperature field of the design with the development of recommendations for optimizing the cooling system to ensure the specified output characteristics and safe operation of the device. The calculation was made taking into account the relationship with the electromagnetic field. The resulting temperature distribution patterns indicate that the thermal stress of pump-heat generator is within acceptable limits. The results make it possible to choose the dimensional ratios of the structural elements of the electromechanical pump-heat generator to optimize the parameters of the cooling system and obtain the specified performance indicators.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117037426","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 : 2022-10-12DOI: 10.1109/ESS57819.2022.9969278
N. Bolotnyi, O. Karmazin, Olexandr V. Ostapchuk
The tendency to increase the demand for integration of energy storage systems in Ukraine power systems is observed. There is a problem of timely verification for mode interaction in the interfaces between the transmission system operator and distribution system operator. This article proposes an approach to line capacity management based on power control of electrical energy storage for distribution system operator. For this purpose, the location choice approach of electrical storage system in distribution network is proposed. This makes it possible to regulate the active power flow and ensure the dynamic stability under emergency of power system. The simulation results confirm that the proposed approach allows increasing the technical and economic performance of the power supply system.
{"title":"Analysis of Prospects for Electrical Energy Storage Application in Power Supply Systems of Ukraine","authors":"N. Bolotnyi, O. Karmazin, Olexandr V. Ostapchuk","doi":"10.1109/ESS57819.2022.9969278","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969278","url":null,"abstract":"The tendency to increase the demand for integration of energy storage systems in Ukraine power systems is observed. There is a problem of timely verification for mode interaction in the interfaces between the transmission system operator and distribution system operator. This article proposes an approach to line capacity management based on power control of electrical energy storage for distribution system operator. For this purpose, the location choice approach of electrical storage system in distribution network is proposed. This makes it possible to regulate the active power flow and ensure the dynamic stability under emergency of power system. The simulation results confirm that the proposed approach allows increasing the technical and economic performance of the power supply system.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121694422","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 : 2022-10-12DOI: 10.1109/ESS57819.2022.9969256
V. Popov, V. Tkachenko, V. O. Kostiuk, O. Yarmoliuk, I. Frolov
Determining the optimal composition, location and operation consistency of various switching devices and protective equipment plays an important role in economically justified provision of the required level of reliability in overhead distribution networks. One of the fundamental difficulties in solving this problem is the need for simultaneous optimization of several indicators that characterize reliability. In this regard, an approach based on the use of a modified greedy optimization algorithm is proposed below. It allows the most uniform improvement of all considered reliability indicators by automatically adjustment of their weights at each iteration of the computational process
{"title":"Optimal Distribution Networks Sectionalizing to Comply Reliability Indexes Regulations","authors":"V. Popov, V. Tkachenko, V. O. Kostiuk, O. Yarmoliuk, I. Frolov","doi":"10.1109/ESS57819.2022.9969256","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969256","url":null,"abstract":"Determining the optimal composition, location and operation consistency of various switching devices and protective equipment plays an important role in economically justified provision of the required level of reliability in overhead distribution networks. One of the fundamental difficulties in solving this problem is the need for simultaneous optimization of several indicators that characterize reliability. In this regard, an approach based on the use of a modified greedy optimization algorithm is proposed below. It allows the most uniform improvement of all considered reliability indicators by automatically adjustment of their weights at each iteration of the computational process","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125725887","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 : 2022-10-12DOI: 10.1109/ESS57819.2022.9969243
O. Popovych, I. Golovan, S. Shevchuk, L. Listovshchyk
A complex mathematical model of the electromechanical system of the gravity energy storage of a wind power plant and the expression of the criterion of its optimal design as the ratio of the efficiency of the system according to the final result to the value of energy resource are developed. The model is implemented in the Matlab simulation system for optimization research in conditions of constant and variable wind speed taking into account the mutual influence of system components: electric generator and motor, reducers, electric network, power frequency converter, hoisting installation. On the example of a system with a capacity of 40 kW, the patterns of change of complex energy coefficients are studied, the efficiency of the developed means of optimal design is substantiated.
{"title":"Means of Complex Design of the Electromechanical System of the Gravity Energy Storage of the WindPower Plant","authors":"O. Popovych, I. Golovan, S. Shevchuk, L. Listovshchyk","doi":"10.1109/ESS57819.2022.9969243","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969243","url":null,"abstract":"A complex mathematical model of the electromechanical system of the gravity energy storage of a wind power plant and the expression of the criterion of its optimal design as the ratio of the efficiency of the system according to the final result to the value of energy resource are developed. The model is implemented in the Matlab simulation system for optimization research in conditions of constant and variable wind speed taking into account the mutual influence of system components: electric generator and motor, reducers, electric network, power frequency converter, hoisting installation. On the example of a system with a capacity of 40 kW, the patterns of change of complex energy coefficients are studied, the efficiency of the developed means of optimal design is substantiated.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117318415","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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