Pub Date : 2023-03-23DOI: 10.1109/ATEE58038.2023.10108211
Alexandru A. Maftei, A. Lavric, A. Petrariu, V. Popa
The Internet of Things (IoT) is rapidly expanding, resulting in an exponential growth of IoT devices and an increasing need for secure data storage. Currently, data management and device interaction for IoT devices are centralized, with a central server managing the storage functions. As a novel data storage solution, blockchain technology offers security through its inherent features, such as distributivity, decentralization, immutability, and consensus mechanisms. Consensus mechanisms represents the rule set imposed by the blockchain network on the IoT devices to enhance network security. In this paper, we analyzed three types of consensus mechanisms - Proof of Work, Proof of Stake, and Proof of Authority - to determine which is best suited for use in IoT data storage solution that uses blockchain. Thus, we evaluated the consensus mechanisms on public blockchain test networks using three metrics: transaction latency, average block time, and average query time. Our obtained results show the PoS and PoA consensus mechanisms are more appropriate for IoT, exhibiting lower transaction latency, lower average block time and query time when compared to the PoW mechanism. This suggests that PoS and PoA are promising alternatives for blockchain-based IoT systems that require energy-efficient and low-latency transactions.
{"title":"Blockchain For Internet of Things: A Consensus Mechanism Analysis","authors":"Alexandru A. Maftei, A. Lavric, A. Petrariu, V. Popa","doi":"10.1109/ATEE58038.2023.10108211","DOIUrl":"https://doi.org/10.1109/ATEE58038.2023.10108211","url":null,"abstract":"The Internet of Things (IoT) is rapidly expanding, resulting in an exponential growth of IoT devices and an increasing need for secure data storage. Currently, data management and device interaction for IoT devices are centralized, with a central server managing the storage functions. As a novel data storage solution, blockchain technology offers security through its inherent features, such as distributivity, decentralization, immutability, and consensus mechanisms. Consensus mechanisms represents the rule set imposed by the blockchain network on the IoT devices to enhance network security. In this paper, we analyzed three types of consensus mechanisms - Proof of Work, Proof of Stake, and Proof of Authority - to determine which is best suited for use in IoT data storage solution that uses blockchain. Thus, we evaluated the consensus mechanisms on public blockchain test networks using three metrics: transaction latency, average block time, and average query time. Our obtained results show the PoS and PoA consensus mechanisms are more appropriate for IoT, exhibiting lower transaction latency, lower average block time and query time when compared to the PoW mechanism. This suggests that PoS and PoA are promising alternatives for blockchain-based IoT systems that require energy-efficient and low-latency transactions.","PeriodicalId":398894,"journal":{"name":"2023 13th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125646941","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 : 2023-03-23DOI: 10.1109/ATEE58038.2023.10108346
C. Diniș, G. Popa, A. Iagăr
The article describes the experimental measurements made at a low-voltage residential and educational power substation, in a point of common coupling. Two groups of experiments were carried out, in normal conditions and during the COVID-19 pandemic. Measurements were made using a power quality analyzer and include phase RMS voltages and line currents, total harmonic distortion and unbalance of phase voltages and line currents, neutral current, active, reactive and apparent powers, power factors and displacement power factors, Fresnel diagrams, and harmonic spectra. Measurements indicate significant differences of power quality indicators between the two measurement groups.
{"title":"Experimental Analysis of Power Quality in a Power Substation Used in a Residential and Educational Sector","authors":"C. Diniș, G. Popa, A. Iagăr","doi":"10.1109/ATEE58038.2023.10108346","DOIUrl":"https://doi.org/10.1109/ATEE58038.2023.10108346","url":null,"abstract":"The article describes the experimental measurements made at a low-voltage residential and educational power substation, in a point of common coupling. Two groups of experiments were carried out, in normal conditions and during the COVID-19 pandemic. Measurements were made using a power quality analyzer and include phase RMS voltages and line currents, total harmonic distortion and unbalance of phase voltages and line currents, neutral current, active, reactive and apparent powers, power factors and displacement power factors, Fresnel diagrams, and harmonic spectra. Measurements indicate significant differences of power quality indicators between the two measurement groups.","PeriodicalId":398894,"journal":{"name":"2023 13th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115783387","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 : 2023-03-23DOI: 10.1109/ATEE58038.2023.10108179
Mohammed Saud Ali Al-Fadheeli, Baqer Saleh Mahdi Al-Rubaie, Y. Bouteraa
Power is produced primarily by huge synchronous generators (SGs) in traditional power systems, with the frequency of the grid determined by the rotating speed of the prime mover. If there are any rapid variations in demand, the rotor inertia property limits the frequency shifts and maintains the system steady. The electricity system is undergoing structural changes as a result of the rapid expansion of renewable energy sources (RES). Inverter-based RES systems do not have the same inertia as classic SG, and a rapid rate of change in frequency and voltage changes at the point of common coupling (PCC) may occur during the disturbance. As a consequence, widespread use of RES systems as the photo voltaic technique will reduce overall power system inertia. Energy storage in the form of "virtual synchronous generators" is presented as a way to enhance the frequency stability of a power grid with a high renewable energy penetration (VSG). With its capacity to control frequency and voltage, the VSG-based inverter power supply simulates the exterior look of a normal SG. VSG is utilized in this research to decrease DC-link voltage fluctuation and to stabilize the frequency and voltage of the power system. The PI controller values are adjusted and tuned by reducing the inaccuracy of the VSG controller's current controller and voltage regulator.
{"title":"Design of Virtual Synchronous Machine Utilizing Photovoltaic Energy System","authors":"Mohammed Saud Ali Al-Fadheeli, Baqer Saleh Mahdi Al-Rubaie, Y. Bouteraa","doi":"10.1109/ATEE58038.2023.10108179","DOIUrl":"https://doi.org/10.1109/ATEE58038.2023.10108179","url":null,"abstract":"Power is produced primarily by huge synchronous generators (SGs) in traditional power systems, with the frequency of the grid determined by the rotating speed of the prime mover. If there are any rapid variations in demand, the rotor inertia property limits the frequency shifts and maintains the system steady. The electricity system is undergoing structural changes as a result of the rapid expansion of renewable energy sources (RES). Inverter-based RES systems do not have the same inertia as classic SG, and a rapid rate of change in frequency and voltage changes at the point of common coupling (PCC) may occur during the disturbance. As a consequence, widespread use of RES systems as the photo voltaic technique will reduce overall power system inertia. Energy storage in the form of \"virtual synchronous generators\" is presented as a way to enhance the frequency stability of a power grid with a high renewable energy penetration (VSG). With its capacity to control frequency and voltage, the VSG-based inverter power supply simulates the exterior look of a normal SG. VSG is utilized in this research to decrease DC-link voltage fluctuation and to stabilize the frequency and voltage of the power system. The PI controller values are adjusted and tuned by reducing the inaccuracy of the VSG controller's current controller and voltage regulator.","PeriodicalId":398894,"journal":{"name":"2023 13th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134221910","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 : 2023-03-23DOI: 10.1109/ATEE58038.2023.10108345
M. Abolghasemi, Aghil Ghaheri, Ali Harooni, S. Ebrahim Afjei
Torque and rotational speed scaling is a typical requirement of industry for a variety of applications. Magnetic gears benefit from numerous advantages due to their physically isolated rotors. Gearing action in magnetic gears occurs by the interaction of the modulated magnetic fields through modulators. The finite element method is typically utilized throughout the design process for magnetic devices. More than dozens of cases need be evaluated in the optimization procedure of a magnetic device to acquire the optimal size. Thus, it takes considerable time to obtain the optimal case. Taguchi method is originally a design of experiments method that drastically reduces number of experiments. This phenomenon is based on the reduction of output variation using orthogonal arrays. In this paper, a transverse-radial flux magnetic gear is optimized by Taguchi method. Signal-to-noise ratio and analysis of variance approaches are utilized to estimate the effective parameters, participation percentage, and optimal level for each control factor. Finally, a comparison is made between the optimal and initial designs, and it is shown that both the torque ripple and the maximum applicable torque have been improved by 40.03% and 30.83%, respectively.
{"title":"Torque Profile Enhancement of a Coaxial Transverse-Radial Flux Magnetic Gear Using Taguchi Optimization Method","authors":"M. Abolghasemi, Aghil Ghaheri, Ali Harooni, S. Ebrahim Afjei","doi":"10.1109/ATEE58038.2023.10108345","DOIUrl":"https://doi.org/10.1109/ATEE58038.2023.10108345","url":null,"abstract":"Torque and rotational speed scaling is a typical requirement of industry for a variety of applications. Magnetic gears benefit from numerous advantages due to their physically isolated rotors. Gearing action in magnetic gears occurs by the interaction of the modulated magnetic fields through modulators. The finite element method is typically utilized throughout the design process for magnetic devices. More than dozens of cases need be evaluated in the optimization procedure of a magnetic device to acquire the optimal size. Thus, it takes considerable time to obtain the optimal case. Taguchi method is originally a design of experiments method that drastically reduces number of experiments. This phenomenon is based on the reduction of output variation using orthogonal arrays. In this paper, a transverse-radial flux magnetic gear is optimized by Taguchi method. Signal-to-noise ratio and analysis of variance approaches are utilized to estimate the effective parameters, participation percentage, and optimal level for each control factor. Finally, a comparison is made between the optimal and initial designs, and it is shown that both the torque ripple and the maximum applicable torque have been improved by 40.03% and 30.83%, respectively.","PeriodicalId":398894,"journal":{"name":"2023 13th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134354568","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 : 2023-03-23DOI: 10.1109/ATEE58038.2023.10108251
Andreea-Maria Mitrofan, A. Morega
This paper presents a mechanical analysis of an osteosynthesis plate using the finite element method. Plates are the most used osteosynthesis implants for fracture fixation. The type of plate used as a computational domain in this study is the 3.5 limited contact dynamic compression plate (LC-DCP). First, a model of a four-point bending test was implemented. Subsequently, the plate was attached to a simplified model of a bone fracture, with a screw inserted in each hole. Loads were applied to the bone structure, and the mechanical behavior of the plate was observed.
{"title":"Structural Analysis for a Limited-Contact Dynamic Compression Plate Used in Osteosynthesis","authors":"Andreea-Maria Mitrofan, A. Morega","doi":"10.1109/ATEE58038.2023.10108251","DOIUrl":"https://doi.org/10.1109/ATEE58038.2023.10108251","url":null,"abstract":"This paper presents a mechanical analysis of an osteosynthesis plate using the finite element method. Plates are the most used osteosynthesis implants for fracture fixation. The type of plate used as a computational domain in this study is the 3.5 limited contact dynamic compression plate (LC-DCP). First, a model of a four-point bending test was implemented. Subsequently, the plate was attached to a simplified model of a bone fracture, with a screw inserted in each hole. Loads were applied to the bone structure, and the mechanical behavior of the plate was observed.","PeriodicalId":398894,"journal":{"name":"2023 13th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126562472","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 : 2023-03-23DOI: 10.1109/ATEE58038.2023.10108149
M. Al-Kaabi, V. Dumbrava, M. Eremia
In power system, the optimal power flow (OPF) is one of the main significant issues that should be solved to achieve the optimal operation, planning, and energy management. Many stochastic optimization algorithms have been suggested to solve OPF problems. Grey wolf optimizer (GWO) is one of the metaheuristic techniques that have been recently applied in power systems. The main aim of this paper is to find optimal objective functions such as fuel cost of generators, emissions, active power losses, and voltage deviation at load bus. The control variables must be setting to obtain optimal objective function are active power of generators (except the swing bus generator), voltage magnitude at load bus, sources VAR compensations that are connected to transmission lines to compensate the reactive power on the network and tap changer setting at the transformers. To prove the superiority and efficiency of GWO in power system applications, IEEE 57-bus test power is the network that has been applied to it. The comparison results of objective functions confirmed the superiority of GWO in providing better solutions than the well-known methods reported in the literature.
{"title":"Grey Wolf Optimizer for solving single objective functions optimal power flow","authors":"M. Al-Kaabi, V. Dumbrava, M. Eremia","doi":"10.1109/ATEE58038.2023.10108149","DOIUrl":"https://doi.org/10.1109/ATEE58038.2023.10108149","url":null,"abstract":"In power system, the optimal power flow (OPF) is one of the main significant issues that should be solved to achieve the optimal operation, planning, and energy management. Many stochastic optimization algorithms have been suggested to solve OPF problems. Grey wolf optimizer (GWO) is one of the metaheuristic techniques that have been recently applied in power systems. The main aim of this paper is to find optimal objective functions such as fuel cost of generators, emissions, active power losses, and voltage deviation at load bus. The control variables must be setting to obtain optimal objective function are active power of generators (except the swing bus generator), voltage magnitude at load bus, sources VAR compensations that are connected to transmission lines to compensate the reactive power on the network and tap changer setting at the transformers. To prove the superiority and efficiency of GWO in power system applications, IEEE 57-bus test power is the network that has been applied to it. The comparison results of objective functions confirmed the superiority of GWO in providing better solutions than the well-known methods reported in the literature.","PeriodicalId":398894,"journal":{"name":"2023 13th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130851055","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 : 2023-03-23DOI: 10.1109/ATEE58038.2023.10108202
V. Boşneagă, V. Suslov
An important role in assessing feasibility and other technical characteristics is played by the behavior of the transformer device during short circuits. Therefore, the purpose of this work is to study the steady-state modes of operation of proposed new device at single-phase short circuit of the load for different connection options of regulating autotransformer to hexagon circuit of main phase-shifting autotransformer. As the result of calculations, the values of voltages and currents vectors in all windings of both autotransformers were obtained for the case of load connection to the middle taps of regulating autotransformer windings. It is shown that at such short-circuit the voltages of the windings of the main autotransformer are significantly distorted and essentially depend on the connection option of the regulating autotransformer. Demonstrative vector diagrams of voltages, currents and relative magnetic fluxes are described, explaining the specific features of the considered modes of the proposed device operation. The calculations showed that in all modes of single-phase short circuit of the load, current appear in the neutral of the power supply source, which is closed through the device and the grounded neutral of the load. Thus, in such modes, significant zero-sequence currents could flow through the device. This leads to the release of significant magnetic flux from the magnetic circuit in the surrounding space.
{"title":"Investigation of Steady-State Single-Phase Short Circuit Modes of Phase-Shifting Autotransformer with Hexagonal Scheme and Adjusting Autotransformer","authors":"V. Boşneagă, V. Suslov","doi":"10.1109/ATEE58038.2023.10108202","DOIUrl":"https://doi.org/10.1109/ATEE58038.2023.10108202","url":null,"abstract":"An important role in assessing feasibility and other technical characteristics is played by the behavior of the transformer device during short circuits. Therefore, the purpose of this work is to study the steady-state modes of operation of proposed new device at single-phase short circuit of the load for different connection options of regulating autotransformer to hexagon circuit of main phase-shifting autotransformer. As the result of calculations, the values of voltages and currents vectors in all windings of both autotransformers were obtained for the case of load connection to the middle taps of regulating autotransformer windings. It is shown that at such short-circuit the voltages of the windings of the main autotransformer are significantly distorted and essentially depend on the connection option of the regulating autotransformer. Demonstrative vector diagrams of voltages, currents and relative magnetic fluxes are described, explaining the specific features of the considered modes of the proposed device operation. The calculations showed that in all modes of single-phase short circuit of the load, current appear in the neutral of the power supply source, which is closed through the device and the grounded neutral of the load. Thus, in such modes, significant zero-sequence currents could flow through the device. This leads to the release of significant magnetic flux from the magnetic circuit in the surrounding space.","PeriodicalId":398894,"journal":{"name":"2023 13th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124603658","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 : 2023-03-23DOI: 10.1109/ATEE58038.2023.10108283
O. Craiu, T. Ichim, Liviu Cristian Popescu
The paper presents an analysis of a few 3D Finite Element Method (FEM) models based on different magnetic scalar and vector potential combinations, of a bi-phase hybrid stepper motor (HSM). The computing time is compared against a reference solution determined using only the magnetic vector potential. The model accuracy is estimated by comparing the HSM holding torque characteristics computed for each model. As HSM 3D FEM models generate matrix systems of equations with millions of unknowns, reducing the computational time and computer memory requirement are essential, hence the practical relevance of this study.
{"title":"3D FEM Model of a Hybrid Stepper Using Scalar-Vector Potential Formulations","authors":"O. Craiu, T. Ichim, Liviu Cristian Popescu","doi":"10.1109/ATEE58038.2023.10108283","DOIUrl":"https://doi.org/10.1109/ATEE58038.2023.10108283","url":null,"abstract":"The paper presents an analysis of a few 3D Finite Element Method (FEM) models based on different magnetic scalar and vector potential combinations, of a bi-phase hybrid stepper motor (HSM). The computing time is compared against a reference solution determined using only the magnetic vector potential. The model accuracy is estimated by comparing the HSM holding torque characteristics computed for each model. As HSM 3D FEM models generate matrix systems of equations with millions of unknowns, reducing the computational time and computer memory requirement are essential, hence the practical relevance of this study.","PeriodicalId":398894,"journal":{"name":"2023 13th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"150 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124614322","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 : 2023-03-23DOI: 10.1109/ATEE58038.2023.10108133
Florin Butaru, Ciprian Carstea, Andreea-Ioana Ratiu, Mihaela-Codruta Ancuti, S. Musuroi
The goal of this paper is to develop a sensorless algorithm for controlling a permanent magnet synchronous motor (PMSM) at high speeds based on active flux observer. The suitable application is a turbocharger. Many applications are build using a field oriented control based on information provided by a position sensor, but this kind of control presents limitations like high sensitivity to parameter variations and slow transient response. A sensorless motion is imposed due to the high speed operation of the turbocharger, where a position sensor will increase the system’s costs, thus, it is not feasible. Position sensor will be used only for starting. The simulation results were obtained using MATLAB/Simulink environment. The sensorless operation of the turbocharger at maximum speed is investigated. In this situation, the maximum speed must be reached in the shortest amount of time for the turbocharger to be efficient.
{"title":"Active Flux Observer-Based High-Speed Control of a Permanent Magnet Synchronous Motor","authors":"Florin Butaru, Ciprian Carstea, Andreea-Ioana Ratiu, Mihaela-Codruta Ancuti, S. Musuroi","doi":"10.1109/ATEE58038.2023.10108133","DOIUrl":"https://doi.org/10.1109/ATEE58038.2023.10108133","url":null,"abstract":"The goal of this paper is to develop a sensorless algorithm for controlling a permanent magnet synchronous motor (PMSM) at high speeds based on active flux observer. The suitable application is a turbocharger. Many applications are build using a field oriented control based on information provided by a position sensor, but this kind of control presents limitations like high sensitivity to parameter variations and slow transient response. A sensorless motion is imposed due to the high speed operation of the turbocharger, where a position sensor will increase the system’s costs, thus, it is not feasible. Position sensor will be used only for starting. The simulation results were obtained using MATLAB/Simulink environment. The sensorless operation of the turbocharger at maximum speed is investigated. In this situation, the maximum speed must be reached in the shortest amount of time for the turbocharger to be efficient.","PeriodicalId":398894,"journal":{"name":"2023 13th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129889464","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 : 2023-03-23DOI: 10.1109/ATEE58038.2023.10108146
Alexandru-Ionel Constantin, D. Marin, P. Anghelita, Ioan Tiberiu Şerban, C. Morari, Gabriela Iosif
The paper presents results related to photovoltaic (PV) panels performances evaluation on bypass activated diodes faults, detected by means of thermographic inspection using two thermal cameras, as part of a preventive maintenance process on 8 years old on-grid 12 kW peak power system roof top, installed at National Institute for Research and Development in Electrical Engineering ICPE-CA. The PV panels performance evaluation is based on comparison of the faulty PV panels that contains bypass activated diodes with healthy ones, using their Current-Voltage (I-V) and Power-Voltage (P-V) characteristics measured by means of the HT I-V 400 equipment.
{"title":"On-site Performances Evaluation of Photovoltaic Panels Affected by Bypass Activated Diodes Detected with Thermal Cameras","authors":"Alexandru-Ionel Constantin, D. Marin, P. Anghelita, Ioan Tiberiu Şerban, C. Morari, Gabriela Iosif","doi":"10.1109/ATEE58038.2023.10108146","DOIUrl":"https://doi.org/10.1109/ATEE58038.2023.10108146","url":null,"abstract":"The paper presents results related to photovoltaic (PV) panels performances evaluation on bypass activated diodes faults, detected by means of thermographic inspection using two thermal cameras, as part of a preventive maintenance process on 8 years old on-grid 12 kW peak power system roof top, installed at National Institute for Research and Development in Electrical Engineering ICPE-CA. The PV panels performance evaluation is based on comparison of the faulty PV panels that contains bypass activated diodes with healthy ones, using their Current-Voltage (I-V) and Power-Voltage (P-V) characteristics measured by means of the HT I-V 400 equipment.","PeriodicalId":398894,"journal":{"name":"2023 13th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128351031","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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