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/ESS57819.2022.9969341
E. I. Bardyk, N. Bolotnyi
The diagnostic issues for complex technical objects condition under uncertainty are considered. This problem is relevant in the tasks of ensuring quality, reliability and efficient operation of technical objects. This article is devoted to the problem study of associated with uncertainty in the development and implementation of risk management system for power transformer failure. The proposed approach is based on fuzzy logic. This allows formalizing the expert's knowledge about the fault types of power transformer and decision-making in a multicriteria problem. As a result of the research, a classification of uncertainty types under risk assessment. Recommendations are also made on methods of overcoming problems associated with uncertainty problems that arise during the development and implementation of management systems, through more accurate risk assessment. The proposed approach based on methods of information processing is formalized, convenient for computer implementation and their subsequent verification in the diagnosis of various technical objects.
{"title":"An Analysis of Uncertainty for Failure Risk Assessment of Power Transformer","authors":"E. I. Bardyk, N. Bolotnyi","doi":"10.1109/ESS57819.2022.9969341","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969341","url":null,"abstract":"The diagnostic issues for complex technical objects condition under uncertainty are considered. This problem is relevant in the tasks of ensuring quality, reliability and efficient operation of technical objects. This article is devoted to the problem study of associated with uncertainty in the development and implementation of risk management system for power transformer failure. The proposed approach is based on fuzzy logic. This allows formalizing the expert's knowledge about the fault types of power transformer and decision-making in a multicriteria problem. As a result of the research, a classification of uncertainty types under risk assessment. Recommendations are also made on methods of overcoming problems associated with uncertainty problems that arise during the development and implementation of management systems, through more accurate risk assessment. The proposed approach based on methods of information processing is formalized, convenient for computer implementation and their subsequent verification in the diagnosis of various technical objects.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"20 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":"114864691","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/ESS57819.2022.9969250
S. Behera, Kishor Sasmal, S. Behera, N. Giri, O. Rubanenko, M. Bajaj
An 11-level modular converter is designed to cater to the need of a single-phase system in accordance with IEEE standards in respect of total harmonic distortion (THD). The control technique is used for controlling the KW as well as KVAR by means of power angle and modulation index respectively. The objective of the inverter is to make operate in dual mode as an active power injector, as well as a reactive power injector into the grid irrespective of the active power supply from the solar photovoltaic (PV) arrays. The operation is accomplished with a grid-connected solar photovoltaic (PV) system. The modular multilevel converter (MMC) inverter is placed between the grid and the PV array along with an RL load. All the simulation and analysis work has been performed in MATLAB Simulink software. Further, THD is compared with two techniques such as level shifted Pulse Width Modulation (PWM) and phase shifted PWM.
{"title":"Design and Control of 11-Level Modular Multilevel Converter with Dual Purpose Inverter for Grid Connected Photovoltaic System","authors":"S. Behera, Kishor Sasmal, S. Behera, N. Giri, O. Rubanenko, M. Bajaj","doi":"10.1109/ESS57819.2022.9969250","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969250","url":null,"abstract":"An 11-level modular converter is designed to cater to the need of a single-phase system in accordance with IEEE standards in respect of total harmonic distortion (THD). The control technique is used for controlling the KW as well as KVAR by means of power angle and modulation index respectively. The objective of the inverter is to make operate in dual mode as an active power injector, as well as a reactive power injector into the grid irrespective of the active power supply from the solar photovoltaic (PV) arrays. The operation is accomplished with a grid-connected solar photovoltaic (PV) system. The modular multilevel converter (MMC) inverter is placed between the grid and the PV array along with an RL load. All the simulation and analysis work has been performed in MATLAB Simulink software. Further, THD is compared with two techniques such as level shifted Pulse Width Modulation (PWM) and phase shifted PWM.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"58 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":"114756973","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/ESS57819.2022.9969305
D. Tugay, O. Shkurpela, Y. Forkun, Valentyn Akymov, Denis Bystrov, R. Makoviei
A comparison of two mathematical models of decomposition of the total power loss in three-phase four-wire systems is made. The paper considers a five-component model used in the Fluke 437–II Power Quality Monitor - energy loss calculator, and an alternative four-component model based on modern power theory. The comparison was performed using the developed meter of total power loss components in practical conditions. Based on the results of monitoring the electrical network of 0.4 kV, the advantages and disadvantages of each model and their prospects for use in the Smart Grid were determined.
{"title":"Monitoring of loss power components in three-phase low-voltage power supply systems","authors":"D. Tugay, O. Shkurpela, Y. Forkun, Valentyn Akymov, Denis Bystrov, R. Makoviei","doi":"10.1109/ESS57819.2022.9969305","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969305","url":null,"abstract":"A comparison of two mathematical models of decomposition of the total power loss in three-phase four-wire systems is made. The paper considers a five-component model used in the Fluke 437–II Power Quality Monitor - energy loss calculator, and an alternative four-component model based on modern power theory. The comparison was performed using the developed meter of total power loss components in practical conditions. Based on the results of monitoring the electrical network of 0.4 kV, the advantages and disadvantages of each model and their prospects for use in the Smart Grid were determined.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":" 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113948308","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/ESS57819.2022.9969260
Volodymyr A. Lytvynchuk, M. Kaplin, N. Bolotnyi, O. Karmazin
Analysis of system emergencies in European power systems, which have a share of renewable sources in the generation structure, revealed the shortcomings of the under frequency load shedding (UFLS). An important fact of this was that UFLS disconnected at the same time part a load of demand together with the generation that was in the network of Distribution System Operator (DSO). From the analysis of emergencies, it was possible to conclude that if there is a share of distribution generation (DG) in the power system, it is necessary to take into account this feature when choosing the amount of load shedding (LS) and setting of UFLS relay. The paper conducted research to determine the reasons for the reduction of the UFLS reserve on a single line diagram of the local network with the connected solar power plant. The current UFLS scheme, which uses relays with and without time delay, was investigated and was offered an optimal scheme.
{"title":"Analysis of the Probable Decrease of Load Shedding Reserve in Power System of Ukraine at Installed Capacity of Renewable Energy Sources","authors":"Volodymyr A. Lytvynchuk, M. Kaplin, N. Bolotnyi, O. Karmazin","doi":"10.1109/ESS57819.2022.9969260","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969260","url":null,"abstract":"Analysis of system emergencies in European power systems, which have a share of renewable sources in the generation structure, revealed the shortcomings of the under frequency load shedding (UFLS). An important fact of this was that UFLS disconnected at the same time part a load of demand together with the generation that was in the network of Distribution System Operator (DSO). From the analysis of emergencies, it was possible to conclude that if there is a share of distribution generation (DG) in the power system, it is necessary to take into account this feature when choosing the amount of load shedding (LS) and setting of UFLS relay. The paper conducted research to determine the reasons for the reduction of the UFLS reserve on a single line diagram of the local network with the connected solar power plant. The current UFLS scheme, which uses relays with and without time delay, was investigated and was offered an optimal scheme.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"14 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":"114473392","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/ESS57819.2022.9969258
I. Verbytskyi, Mykola Lukianov, R. Strzelecki
Many countries, including Ukraine, are beginning to regulate the generation of energy produced from renewable energy sources more tightly to mitigate power imbalances. For this reason, electricity energy providers from renewable sources are forced to forecast energy generation and pay penalties if their forecast doesn't match with real energy generation. Renewable energy providers may use weather forecast as well as install energy storage system to minimize the penalties. The main purpose of the study is the review common cloudiness forecast services, uncertainty interval calculation of solar radiation for these services based on comparing with real solar radiation, estimating the opportunity of combining forecast data from several sources to minimize error and analysing the profit from the power plant using forecast services.
{"title":"Feature of Solar Radiation Forecast Services Use for Solar Plants","authors":"I. Verbytskyi, Mykola Lukianov, R. Strzelecki","doi":"10.1109/ESS57819.2022.9969258","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969258","url":null,"abstract":"Many countries, including Ukraine, are beginning to regulate the generation of energy produced from renewable energy sources more tightly to mitigate power imbalances. For this reason, electricity energy providers from renewable sources are forced to forecast energy generation and pay penalties if their forecast doesn't match with real energy generation. Renewable energy providers may use weather forecast as well as install energy storage system to minimize the penalties. The main purpose of the study is the review common cloudiness forecast services, uncertainty interval calculation of solar radiation for these services based on comparing with real solar radiation, estimating the opportunity of combining forecast data from several sources to minimize error and analysing the profit from the power plant using forecast services.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"125 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":"115247707","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/ESS57819.2022.9969315
S. Bevz, V. Voitko, S. Burbelo, P. Stavytskyi
Approaches to the development of the system of music synthesis and recognition are considered. In addition, such audio software as part of the smart house system can bring additional benefits and increased experience for its users. It is important to consider an audio recognition state that considers fingerprint creation and optimization. Moreover, an approach of parallel GPU computing is considered as a solution to the fingerprint matching process optimization.
{"title":"Approaches to developing an audio system as part of a smart house","authors":"S. Bevz, V. Voitko, S. Burbelo, P. Stavytskyi","doi":"10.1109/ESS57819.2022.9969315","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969315","url":null,"abstract":"Approaches to the development of the system of music synthesis and recognition are considered. In addition, such audio software as part of the smart house system can bring additional benefits and increased experience for its users. It is important to consider an audio recognition state that considers fingerprint creation and optimization. Moreover, an approach of parallel GPU computing is considered as a solution to the fingerprint matching process optimization.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"74 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":"133956233","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/ESS57819.2022.9969240
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/ESS57819.2022.9969279
M. Pechenik, S. Burian, I.V. Khudia, M. Pushkar, Vitalii Teriaiev
The article considers the electromechanical water supply system of a residential building, the pumping station of which includes two half-power capacity centrifugal pumps connected in parallel. At the same time one pump is adjustable and provides stabilization of pressure in a hydraulic network at the necessary level, the second - not regulated which is switched on at the maximum loads and uses soft start system. For more accurately assess the dynamic and static characteristics of water supply, the features of the daily schedule of water yearly consumption, defined in spring, autumn, winter and summer periods are considered. Using the SimHydraulics library of the MatLab application package, a refining model of the hydraulic network has been developed, which allows to take into account the characteristics of network and design features of its individual elements with a high degree of accuracy. The study of the level of accuracy of pressure stabilization of the water supply system is performed, as well as the results of the analysis of energy characteristics of the electromechanical water supply system with variation of its load level during the day and year. Based on the review of the previous research, the expediency of using cascade pumping unit electromechanical systems for water supply systems of residential buildings was determined. Recommendations for the use of a refining model of the hydro network in the study of the modes of operation of the water supply complex are presented.
{"title":"Operation Modes Investigation of Cascade Pump Unit Using Refining Hydraulic Network Model","authors":"M. Pechenik, S. Burian, I.V. Khudia, M. Pushkar, Vitalii Teriaiev","doi":"10.1109/ESS57819.2022.9969279","DOIUrl":"https://doi.org/10.1109/ESS57819.2022.9969279","url":null,"abstract":"The article considers the electromechanical water supply system of a residential building, the pumping station of which includes two half-power capacity centrifugal pumps connected in parallel. At the same time one pump is adjustable and provides stabilization of pressure in a hydraulic network at the necessary level, the second - not regulated which is switched on at the maximum loads and uses soft start system. For more accurately assess the dynamic and static characteristics of water supply, the features of the daily schedule of water yearly consumption, defined in spring, autumn, winter and summer periods are considered. Using the SimHydraulics library of the MatLab application package, a refining model of the hydraulic network has been developed, which allows to take into account the characteristics of network and design features of its individual elements with a high degree of accuracy. The study of the level of accuracy of pressure stabilization of the water supply system is performed, as well as the results of the analysis of energy characteristics of the electromechanical water supply system with variation of its load level during the day and year. Based on the review of the previous research, the expediency of using cascade pumping unit electromechanical systems for water supply systems of residential buildings was determined. Recommendations for the use of a refining model of the hydro network in the study of the modes of operation of the water supply complex are presented.","PeriodicalId":432063,"journal":{"name":"2022 IEEE 8th International Conference on Energy Smart Systems (ESS)","volume":"121 41","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120825506","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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