Pub Date : 2022-10-12DOI: 10.1109/ESS57819.2022.9969322
I. Kameneva, E. Dzhyhun
Based on the analysis of world experience, the leading role of water resources for balancing the process of electricity production and consumption in the unified energy system of Ukraine is determined, which is especially relevant against the background of the growth of production volumes and unregulated use of wind and solar energy. Modern directions of forecasting the state of water resources are analyzed, among which methods of mathematical modeling of hydrological systems, models of seasonal fluctuations and probabilistic forecasting methods based on statistical data are highlighted. Separate forecasting results are presented, which reflect the main trends regarding climate changes in the world and in Ukraine, which have a decisive impact on the state of water resources.
{"title":"Forecastirig the state of water resources to balance loads and increase the stability of the energy sector","authors":"I. Kameneva, E. Dzhyhun","doi":"10.1109/ESS57819.2022.9969322","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969322","url":null,"abstract":"Based on the analysis of world experience, the leading role of water resources for balancing the process of electricity production and consumption in the unified energy system of Ukraine is determined, which is especially relevant against the background of the growth of production volumes and unregulated use of wind and solar energy. Modern directions of forecasting the state of water resources are analyzed, among which methods of mathematical modeling of hydrological systems, models of seasonal fluctuations and probabilistic forecasting methods based on statistical data are highlighted. Separate forecasting results are presented, which reflect the main trends regarding climate changes in the world and in Ukraine, which have a decisive impact on the state of water resources.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"30 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":"129194642","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/ESS57819.2022.9969240
M. Artemenko, Y. Kutafin, Ivan Shapoval, V. Chopyk, V. Mykhalskyi, S. Polishchuk
In the paper, two orthogonal components of unbalanced power in the three-phase three-wire power supply system were introduced to simplify the distributed filtration control. Integral formulas are obtained to determine the applied unbalanced power components, making it possible to record their contribution to the deterioration of electrical energy quality. The relationship between power unbalance components and the linear unbalanced load parameters was established to verify the above-mentioned integral formulas by computer experiment. Experimental studies show complete coincidence of the measured power points with the curves of the calculated dependences. It has been found that with given source symmetric voltages, the three-phase sinusoidal process of the unbalanced load is fully identified by four scalar values: active and reactive powers and applied orthogonal components of the unbalance power. These scalar variables can be used to synthesize control signals for distributed active filters of intelligent local power grids.
{"title":"Identification of unbalanced power in a three-phase three-wire power system under linear loading","authors":"M. Artemenko, Y. Kutafin, Ivan Shapoval, V. Chopyk, V. Mykhalskyi, S. Polishchuk","doi":"10.1109/ESS57819.2022.9969240","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969240","url":null,"abstract":"In the paper, two orthogonal components of unbalanced power in the three-phase three-wire power supply system were introduced to simplify the distributed filtration control. Integral formulas are obtained to determine the applied unbalanced power components, making it possible to record their contribution to the deterioration of electrical energy quality. The relationship between power unbalance components and the linear unbalanced load parameters was established to verify the above-mentioned integral formulas by computer experiment. Experimental studies show complete coincidence of the measured power points with the curves of the calculated dependences. It has been found that with given source symmetric voltages, the three-phase sinusoidal process of the unbalanced load is fully identified by four scalar values: active and reactive powers and applied orthogonal components of the unbalance power. These scalar variables can be used to synthesize control signals for distributed active filters of intelligent local power grids.","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":"122643497","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/ESS57819.2022.9969330
M. Grebchenko, M. Sopel, Y. Pylypenko, D. Voitov
In this paper the method to determine fault location in case of ground fault at power line with isolated neutral has been proposed. Estimation of fault's distance is carried out based on line's operating mode parameters (namely phase currents and voltages to ground) at the start of the line. Fault's distance calculation is implemented using vectors of line's operating mode parameters from both sides of the line. Verification of the method has been conducted experimentally as well as via math modelling. Method's errors were caused mostly by small currents' value alteration in case of fault, existence of resistance at fault's location and power line's load resistance change. Research about impact on method's accuracy due to distance to the fault as well as resistance value at the fault location has been carried out.
{"title":"Quasi-bilateral method for determining the distance to the ground fault of unilateral power lines","authors":"M. Grebchenko, M. Sopel, Y. Pylypenko, D. Voitov","doi":"10.1109/ESS57819.2022.9969330","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969330","url":null,"abstract":"In this paper the method to determine fault location in case of ground fault at power line with isolated neutral has been proposed. Estimation of fault's distance is carried out based on line's operating mode parameters (namely phase currents and voltages to ground) at the start of the line. Fault's distance calculation is implemented using vectors of line's operating mode parameters from both sides of the line. Verification of the method has been conducted experimentally as well as via math modelling. Method's errors were caused mostly by small currents' value alteration in case of fault, existence of resistance at fault's location and power line's load resistance change. Research about impact on method's accuracy due to distance to the fault as well as resistance value at the fault location has been carried out.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"8 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":"126928002","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/ESS57819.2022.9969269
P. Hovorov, Anastasia Kindinava, V. Hovorov, Omer Abdelrhim
The work is devoted to increasing the efficiency of power supply and lighting systems of cities as a complex biotechnical system. The high level of technical complexity of networks, strong branching, combined with a large number of elements operating in a little predictable mode, make the management of the modes of such networks a rather difficult task, which requires a large amount of information regarding the parameters and modes of electrical networks and their elements, as well as the use of a large number of corrective elements. However, the lack of scientific foundations and automated control of the modes of urban electrical networks as a whole significantly complicates the solution of this problem, and taking into account the characteristics of urban electrical networks, the distribution of parameters in space, and processes in time and the influence of network regimes on the socio-economic conditions of residents, under these conditions, make it almost unsolvable. Considering the above, the authors have developed the scientific foundations for the automated control of modes of urban electrical networks, based on the use of distributed multi-level control systems built according to a hierarchical principle, in combination with the use of corrective multifunctional devices in load nodes, built on the basis of phase-switching systems. Their use in combination with the use of the Smart-Grid concept opens up the possibility of automatically changing the module, phase shift and harmonic composition of voltages and currents in load nodes, ensuring the optimal functioning of urban electrical networks as a whole, by reducing voltage and power losses in networks.
{"title":"Control of Modes of Power Supply and Lighting Systems of Cities Based on the Concept of Smart-Grid","authors":"P. Hovorov, Anastasia Kindinava, V. Hovorov, Omer Abdelrhim","doi":"10.1109/ESS57819.2022.9969269","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969269","url":null,"abstract":"The work is devoted to increasing the efficiency of power supply and lighting systems of cities as a complex biotechnical system. The high level of technical complexity of networks, strong branching, combined with a large number of elements operating in a little predictable mode, make the management of the modes of such networks a rather difficult task, which requires a large amount of information regarding the parameters and modes of electrical networks and their elements, as well as the use of a large number of corrective elements. However, the lack of scientific foundations and automated control of the modes of urban electrical networks as a whole significantly complicates the solution of this problem, and taking into account the characteristics of urban electrical networks, the distribution of parameters in space, and processes in time and the influence of network regimes on the socio-economic conditions of residents, under these conditions, make it almost unsolvable. Considering the above, the authors have developed the scientific foundations for the automated control of modes of urban electrical networks, based on the use of distributed multi-level control systems built according to a hierarchical principle, in combination with the use of corrective multifunctional devices in load nodes, built on the basis of phase-switching systems. Their use in combination with the use of the Smart-Grid concept opens up the possibility of automatically changing the module, phase shift and harmonic composition of voltages and currents in load nodes, ensuring the optimal functioning of urban electrical networks as a whole, by reducing voltage and power losses in networks.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"28 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":"126493698","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/ESS57819.2022.9969292
Vladislav S. Markov, Natalia V. Kriukova, Ye. Honcharov, I. Polyakov
The article deals with the problems of using induction generators at wind power plants. In particular, it deals with the excitation of these generators, the choice of excitation and correction capacitances, voltage stabilization of the generator under load, transients in an induction generator at a wind power plant. Models of an induction generator at a wind power plant for computer simulation are considered.
{"title":"Problems Of Induction Generators Using At Wind Power Plants And Their Computer Simulation","authors":"Vladislav S. Markov, Natalia V. Kriukova, Ye. Honcharov, I. Polyakov","doi":"10.1109/ESS57819.2022.9969292","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969292","url":null,"abstract":"The article deals with the problems of using induction generators at wind power plants. In particular, it deals with the excitation of these generators, the choice of excitation and correction capacitances, voltage stabilization of the generator under load, transients in an induction generator at a wind power plant. Models of an induction generator at a wind power plant for computer simulation are considered.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"63 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":"130640450","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/ESS57819.2022.9969327
E. I. Bardyk, N. Bolotnyi
There is a problem of transition to equipment maintenance according to its technical condition. Solving this problem should contributed to more efficient management of power companies resources and increase their competitiveness. This paper proposes an approach to quantitative assessment of technical condition for power transformer using an integrated technical deterioration index. The proposed approach is based on fuzzy logic and fuzzy set theory. This allows you to formalize expert assessments of defect development in power transformer. The formalization of technical condition evaluation for power transformer in knowledge base form is implemented in expert system prototype. The integrated technical deterioration index of power transformer was determined based on test results of technical condition parameters for functional units of power transformer using expert judgments. The considered approach to uncertainty formalization about technical condition of power transformer allows constructing the deterministic scheme of decision-making on further service strategy. The procedures of ranking, out of service of specific objects are implemented based on objective criteria in this service strategy of power transformer.
{"title":"Improved Power Transformer Condition Assessment under Uncertainty using Fuzzy Logic","authors":"E. I. Bardyk, N. Bolotnyi","doi":"10.1109/ESS57819.2022.9969327","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969327","url":null,"abstract":"There is a problem of transition to equipment maintenance according to its technical condition. Solving this problem should contributed to more efficient management of power companies resources and increase their competitiveness. This paper proposes an approach to quantitative assessment of technical condition for power transformer using an integrated technical deterioration index. The proposed approach is based on fuzzy logic and fuzzy set theory. This allows you to formalize expert assessments of defect development in power transformer. The formalization of technical condition evaluation for power transformer in knowledge base form is implemented in expert system prototype. The integrated technical deterioration index of power transformer was determined based on test results of technical condition parameters for functional units of power transformer using expert judgments. The considered approach to uncertainty formalization about technical condition of power transformer allows constructing the deterministic scheme of decision-making on further service strategy. The procedures of ranking, out of service of specific objects are implemented based on objective criteria in this service strategy of power transformer.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"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":"133479041","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/ESS57819.2022.9969247
Y. Parus, I. Blinov, D. Olefir
The principles of building and the general structure of the unified model for estimation of economic effect from providing by the energy storage systems of services for regulation of modes of electric networks are provided. The target functions for searching the optimal solution to the problem set are provided. The mathematical apparatus for calculating the main components of the target function is presented. Recommendations on the formalization of the problem statement in the calculation model are provided.
{"title":"Simulation Model for Assessing the Feasibility of Using the Energy Storage System for Regulation of Modes of Electric Networks","authors":"Y. Parus, I. Blinov, D. Olefir","doi":"10.1109/ESS57819.2022.9969247","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969247","url":null,"abstract":"The principles of building and the general structure of the unified model for estimation of economic effect from providing by the energy storage systems of services for regulation of modes of electric networks are provided. The target functions for searching the optimal solution to the problem set are provided. The mathematical apparatus for calculating the main components of the target function is presented. Recommendations on the formalization of the problem statement in the calculation model are provided.","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":"115675939","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/ESS57819.2022.9969257
V. Khilov, Natalija Glukhova, Ludmila Pesotskaya, Sergii Fedorov
The features of an electromagnetic energy conversion by an electromechanical drive in a two-mass system with elastic connections are researched. The frequency characteristics of energy transfer additional links, due to the elastic properties of the mechanic transmission, are studied. Control algorithms that suppress oscillations of electromagnetic energy in the power supply system are found. The ideas of neuro-fuzzy control to suppress interharmonics of electromagnetic energy have been used.
{"title":"Using Fuzzy Control Principles to Improve the Electromagnetic Compatibility of Electrical Supply and Electromechanical Systems","authors":"V. Khilov, Natalija Glukhova, Ludmila Pesotskaya, Sergii Fedorov","doi":"10.1109/ESS57819.2022.9969257","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969257","url":null,"abstract":"The features of an electromagnetic energy conversion by an electromechanical drive in a two-mass system with elastic connections are researched. The frequency characteristics of energy transfer additional links, due to the elastic properties of the mechanic transmission, are studied. Control algorithms that suppress oscillations of electromagnetic energy in the power supply system are found. The ideas of neuro-fuzzy control to suppress interharmonics of electromagnetic energy have been used.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"63 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":"124577514","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/ESS57819.2022.9969293
Valeriya Kopyakova, K. Niemchenko, Tetyana Vikhtynska
We present an effective method for optimizing the connections of a given number of consumers with given temporary power consumption to a three-phase power supply circuit to establish a balanced electricity consumption. As the result the task of symmetrization the load by phases of the distribution network of the electric power system is solved.
{"title":"Using of search methods for effective three-phase feeder load balancing","authors":"Valeriya Kopyakova, K. Niemchenko, Tetyana Vikhtynska","doi":"10.1109/ESS57819.2022.9969293","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969293","url":null,"abstract":"We present an effective method for optimizing the connections of a given number of consumers with given temporary power consumption to a three-phase power supply circuit to establish a balanced electricity consumption. As the result the task of symmetrization the load by phases of the distribution network of the electric power system is solved.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"34 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":"124900283","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/ESS57819.2022.9969239
Oleksandr Vatrenko, M. Iakymchuk
In technical systems that operate in the presence of vacuum, often necessary is to control the vacuum depth. Vacuum monitoring sensors are used for this purpose. Modern sensors are quite complex and expensive electrical devices. In some cases when the object operated under vacuum is partially or completely made of plates and shells, these components energy capacity can be used for vacuum control without engaging the special sensors. In particular, such control systems are used in packaging with vacuum cans. Studies have shown that membranes stamped on the body of an object function due to the transformation energy that occurs therein as a result stability loss from pressure drop. This energy depends on the membrane thickness. As the membrane thickness decreases, the transformation energy increases, and the stability loss pressure decreases.
{"title":"Energy aspects of thin round elastic plates' stability loss","authors":"Oleksandr Vatrenko, M. Iakymchuk","doi":"10.1109/ESS57819.2022.9969239","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969239","url":null,"abstract":"In technical systems that operate in the presence of vacuum, often necessary is to control the vacuum depth. Vacuum monitoring sensors are used for this purpose. Modern sensors are quite complex and expensive electrical devices. In some cases when the object operated under vacuum is partially or completely made of plates and shells, these components energy capacity can be used for vacuum control without engaging the special sensors. In particular, such control systems are used in packaging with vacuum cans. Studies have shown that membranes stamped on the body of an object function due to the transformation energy that occurs therein as a result stability loss from pressure drop. This energy depends on the membrane thickness. As the membrane thickness decreases, the transformation energy increases, and the stability loss pressure decreases.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"33 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":"124934197","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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