Pub Date : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425052
Khadidja Hadji, K. Hartani, T. Chikouche, Ali Elhabib Ameur
This paper aims proposing a solution to the problems of disturbances due to the current harmonics generated by the AC / DC converters in the electrical network. Moreover, it aims to develop an advanced control technique that improves the characteristics of the three-phase three-level NPC PWM rectifier, in terms of fixed switching frequency operation, unit power factor, low harmonic distortion rate of currents absorbed by the rectifiers and good regulation of the DC bus voltage. A direct predictive power control based on space vector modulation technique, named P-SVM-DPC, has been proposed to solve the problems associated with conventional DPC control algorithms. The proposed control strategy, based on the discrete model of the system, allows predicting the behavior of the system for different control actions, and choosing the most optimal vector for what is applied to the system at the next instant. Numerical simulations show that the proposed predictive control is very accurate and robust to load variations.
{"title":"Predictive Direct Power Control of a Three-Phase Three-Level NPC PWM Rectifier based on Space Vector Modulation","authors":"Khadidja Hadji, K. Hartani, T. Chikouche, Ali Elhabib Ameur","doi":"10.1109/ATEE52255.2021.9425052","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425052","url":null,"abstract":"This paper aims proposing a solution to the problems of disturbances due to the current harmonics generated by the AC / DC converters in the electrical network. Moreover, it aims to develop an advanced control technique that improves the characteristics of the three-phase three-level NPC PWM rectifier, in terms of fixed switching frequency operation, unit power factor, low harmonic distortion rate of currents absorbed by the rectifiers and good regulation of the DC bus voltage. A direct predictive power control based on space vector modulation technique, named P-SVM-DPC, has been proposed to solve the problems associated with conventional DPC control algorithms. The proposed control strategy, based on the discrete model of the system, allows predicting the behavior of the system for different control actions, and choosing the most optimal vector for what is applied to the system at the next instant. Numerical simulations show that the proposed predictive control is very accurate and robust to load variations.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117194352","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425305
F. Teodorescu
Electronic power converters constitute a very important pollution source of electricity supply networks, which has a unwanted negative effect on the quality of electricity and the efficiency of power systems. In order to identify the means of improving the degree of pollution produced by these electronic power systems it is necessary to study, model and simulate various configurations of static power converters. This paper focuses on Matlab//Simulink modeling and simulation of power factor control techniques used in three-phase PWM power rectifiers. The aim of the paper is to accomplish a study of the PWM control technique in a three-phase stationary reference and to compare that to the PWM technique in a two-phase synchronous reference frame rotating with electrical speed, both for three phase rectifiers with active PFC systems. The comparison criteria consist in the value of the power factor PF, the harmonic content of the absorbed current THD and the energy efficiency of the studied configurations.
{"title":"Comparative Study of some Control Techniques Applied to Three-Phase PFC Rectifiers","authors":"F. Teodorescu","doi":"10.1109/ATEE52255.2021.9425305","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425305","url":null,"abstract":"Electronic power converters constitute a very important pollution source of electricity supply networks, which has a unwanted negative effect on the quality of electricity and the efficiency of power systems. In order to identify the means of improving the degree of pollution produced by these electronic power systems it is necessary to study, model and simulate various configurations of static power converters. This paper focuses on Matlab//Simulink modeling and simulation of power factor control techniques used in three-phase PWM power rectifiers. The aim of the paper is to accomplish a study of the PWM control technique in a three-phase stationary reference and to compare that to the PWM technique in a two-phase synchronous reference frame rotating with electrical speed, both for three phase rectifiers with active PFC systems. The comparison criteria consist in the value of the power factor PF, the harmonic content of the absorbed current THD and the energy efficiency of the studied configurations.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115604419","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425037
Hayder Almizan, Z. A. A. Hassain, T. Elwi, S. M. Al-Sabti
This paper presents a method to control gain enhancement of a microstrip antenna based on a reconfigurable metasurface layer. The proposed layer is maintained the antenna and consists of $5 times 5 -$unit cells. The proposed unit cell is designed to has four PIN diodes for structure reconfiguration into states ON and OFF. Therefore, the layer may have many distribution patters of ON-OFF unit cells. Each certain distribution pattern can enhance antenna gain to a certain value. Four patterns of the layer are suggested to enhance the antenna gain of about 1 dBi to 2, 5, 8, and 11 dBi. An equivalent circuit is introduced to describe the performance of the proposed unit cell. Besides, full CST MWS simulations for the system are conducted. To experimentally verify the presented method, a prototype of the system is fabricated and partially tested. The measurements show a good agreement with simulations.
{"title":"Controlling Gain Enhancement Using a Reconfigurable Metasurface Layer","authors":"Hayder Almizan, Z. A. A. Hassain, T. Elwi, S. M. Al-Sabti","doi":"10.1109/ATEE52255.2021.9425037","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425037","url":null,"abstract":"This paper presents a method to control gain enhancement of a microstrip antenna based on a reconfigurable metasurface layer. The proposed layer is maintained the antenna and consists of $5 times 5 -$unit cells. The proposed unit cell is designed to has four PIN diodes for structure reconfiguration into states ON and OFF. Therefore, the layer may have many distribution patters of ON-OFF unit cells. Each certain distribution pattern can enhance antenna gain to a certain value. Four patterns of the layer are suggested to enhance the antenna gain of about 1 dBi to 2, 5, 8, and 11 dBi. An equivalent circuit is introduced to describe the performance of the proposed unit cell. Besides, full CST MWS simulations for the system are conducted. To experimentally verify the presented method, a prototype of the system is fabricated and partially tested. The measurements show a good agreement with simulations.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114157470","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425257
Leonard Cătălin Dobre, Alexandru Țurcanu, A. Craciunescu
Photovoltaic power plants require large ground areas, conflicting with other land uses like agriculture or livestock. Alternatively, large water bodies are available and could be used as a basis for floating PV panels, reducing the need for land acquisition and improving PV panels’ performances. This article presents specific structures and components of floating PV power plants, with rigid or flexible PV panels, arranged on a floating or immersed support, and compare its potential performances with ground mounted PV plants.
{"title":"Floating Photovoltaic Power Plants","authors":"Leonard Cătălin Dobre, Alexandru Țurcanu, A. Craciunescu","doi":"10.1109/ATEE52255.2021.9425257","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425257","url":null,"abstract":"Photovoltaic power plants require large ground areas, conflicting with other land uses like agriculture or livestock. Alternatively, large water bodies are available and could be used as a basis for floating PV panels, reducing the need for land acquisition and improving PV panels’ performances. This article presents specific structures and components of floating PV power plants, with rigid or flexible PV panels, arranged on a floating or immersed support, and compare its potential performances with ground mounted PV plants.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116258023","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425123
Emil Tudor, I. Vasile, Gabriel Popa, M. Gheți
Determining the distance to an object, it’s size and shape is a practical aspect for many current technical applications, such as remote detection, counting moving objects, electronic boards component placing, creating topographical maps or electron microscopy.A LiDAR system uses the principle of measuring time of flight of an optical signal to determine the distance between the camera and the object, by transmitting a light signal to the object, the signal is generated by a laser or LED. Laser-using systems belong to a category called LiDAR scannerless where the entire object is streaked with the pulse of light, in contrast to systems in which the object is scanned point by point.This paper highlighted the principles of determining absolute distance and relative speed by optical means, as well as identifies the main LiDAR modules available on the market.The most important application of this method is the frontal distance long-range measurement used for vehicles. This paper‘s recommendations will be used for selecting LIDAR sensor and control electronics, which can be used to make mobile experimental models for measuring distance and relative speed of vehicles.Since not all Manufacturers of LiDAR modules are presenting their product’s technical characteristics and performances under the same test conditions, the authors recommend a platform to test these sensors in the form of experimental models on which can be performed comparative tests of available sensors.Several tests performed using the experimental model are presented and interpreted for the use of future research.
{"title":"LiDAR Sensors Used for Improving Safety of Electronic-Controlled Vehicles","authors":"Emil Tudor, I. Vasile, Gabriel Popa, M. Gheți","doi":"10.1109/ATEE52255.2021.9425123","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425123","url":null,"abstract":"Determining the distance to an object, it’s size and shape is a practical aspect for many current technical applications, such as remote detection, counting moving objects, electronic boards component placing, creating topographical maps or electron microscopy.A LiDAR system uses the principle of measuring time of flight of an optical signal to determine the distance between the camera and the object, by transmitting a light signal to the object, the signal is generated by a laser or LED. Laser-using systems belong to a category called LiDAR scannerless where the entire object is streaked with the pulse of light, in contrast to systems in which the object is scanned point by point.This paper highlighted the principles of determining absolute distance and relative speed by optical means, as well as identifies the main LiDAR modules available on the market.The most important application of this method is the frontal distance long-range measurement used for vehicles. This paper‘s recommendations will be used for selecting LIDAR sensor and control electronics, which can be used to make mobile experimental models for measuring distance and relative speed of vehicles.Since not all Manufacturers of LiDAR modules are presenting their product’s technical characteristics and performances under the same test conditions, the authors recommend a platform to test these sensors in the form of experimental models on which can be performed comparative tests of available sensors.Several tests performed using the experimental model are presented and interpreted for the use of future research.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114807401","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425164
Yelda Veli, C. Borzea, A. Dobre, A. Morega
Energy harvesting sources and powering schemes are not capable to meet the power demands of end electronic consumers. several methods and alternatives are implemented. Among these alternatives, communication protocols of collected data can involve a reduced energy consumption since data acquired by the sensor node can travel a minimum distance with minimum energy consumption before being finally collected by the end server or radio-frequency antenna. The transmission protocols of collected data can thereby involve several routes that minimize overall consumption.
{"title":"Energy Harvesting for Hybrid Powering of Autonomous Wireless Sensors","authors":"Yelda Veli, C. Borzea, A. Dobre, A. Morega","doi":"10.1109/ATEE52255.2021.9425164","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425164","url":null,"abstract":"Energy harvesting sources and powering schemes are not capable to meet the power demands of end electronic consumers. several methods and alternatives are implemented. Among these alternatives, communication protocols of collected data can involve a reduced energy consumption since data acquired by the sensor node can travel a minimum distance with minimum energy consumption before being finally collected by the end server or radio-frequency antenna. The transmission protocols of collected data can thereby involve several routes that minimize overall consumption.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127156237","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425333
Ioana Ionică, M. Modreanu, A. Morega, Cristian Boboc
The design of a hybrid stepper motor considering various cases from the geometry point of view for achieving specific performances requires adequate geometrical sizing that may be performed through numerical modeling. With this aim, the current study is approaching the influence of the geometry for the electromagnetic torque calculation on a stepper motor considering various models. For each one, three–dimensional numerical analysis is used to predetermine the detent and holding torque versus angle characteristics. Moreover, optimal technical solutions were obtained through successive improvements made in the design phase and concurring with the requirements of the product specification.
{"title":"Geometry Influence on the Electromagnetic Torque Calculation of a Stepper Motor","authors":"Ioana Ionică, M. Modreanu, A. Morega, Cristian Boboc","doi":"10.1109/ATEE52255.2021.9425333","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425333","url":null,"abstract":"The design of a hybrid stepper motor considering various cases from the geometry point of view for achieving specific performances requires adequate geometrical sizing that may be performed through numerical modeling. With this aim, the current study is approaching the influence of the geometry for the electromagnetic torque calculation on a stepper motor considering various models. For each one, three–dimensional numerical analysis is used to predetermine the detent and holding torque versus angle characteristics. Moreover, optimal technical solutions were obtained through successive improvements made in the design phase and concurring with the requirements of the product specification.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125786290","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425077
R. Beloiu
Virtual commissioning and process optimization are challenging responsibilities in a company. There are times when the automation engineer is provided the tasks to solve from video or photo materials. In this case, there are certain required operations for specific operation parameter determination. This article presents such situation resulted from a practical situation.
{"title":"Virtual Commissioning of Wheel Robot Processing","authors":"R. Beloiu","doi":"10.1109/ATEE52255.2021.9425077","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425077","url":null,"abstract":"Virtual commissioning and process optimization are challenging responsibilities in a company. There are times when the automation engineer is provided the tasks to solve from video or photo materials. In this case, there are certain required operations for specific operation parameter determination. This article presents such situation resulted from a practical situation.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126548222","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425328
G. Suciu, Andreea Badicu, Cristian Beceanu, M. Yümlü, Yusuf Kaya, Kadir Gürkan Kızak, Fatih Tahtasakal
In recent years, energy storage systems have rapidly transformed and evolved because of the pressing need to create more resilient energy infrastructures and to keep energy costs at low rates for consumers, as well as for utilities. Among the wide array of technological approaches to managing power supply, Li-Ion battery applications are widely used to increase power capabilities and to better integrate renewable energy sources. The improvement of Li-Ion batteries’ reliability and safety requires BMS (battery management system) technology for the energy systems’ optimal functionality and more sustainable batteries with ultra-high performances. This paper aims to introduce the need to incorporate information technology within the current energy storage applications for better performance and reduced costs. Artificial intelligence based BMSs facilitate parameter predictions and state estimations, thus improving efficiency and lowering overall maintenance costs.
{"title":"AI-based intelligent energy storage using Li-ion batteries","authors":"G. Suciu, Andreea Badicu, Cristian Beceanu, M. Yümlü, Yusuf Kaya, Kadir Gürkan Kızak, Fatih Tahtasakal","doi":"10.1109/ATEE52255.2021.9425328","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425328","url":null,"abstract":"In recent years, energy storage systems have rapidly transformed and evolved because of the pressing need to create more resilient energy infrastructures and to keep energy costs at low rates for consumers, as well as for utilities. Among the wide array of technological approaches to managing power supply, Li-Ion battery applications are widely used to increase power capabilities and to better integrate renewable energy sources. The improvement of Li-Ion batteries’ reliability and safety requires BMS (battery management system) technology for the energy systems’ optimal functionality and more sustainable batteries with ultra-high performances. This paper aims to introduce the need to incorporate information technology within the current energy storage applications for better performance and reduced costs. Artificial intelligence based BMSs facilitate parameter predictions and state estimations, thus improving efficiency and lowering overall maintenance costs.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124382364","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 : 2021-03-25DOI: 10.1109/ATEE52255.2021.9425254
I. Sirbu, L. Mandache
In the context of the accentuated development of digital technology, new methods of analysis and processing of signals have appeared, especially for electrical signals. Thus, the development of discrete methods for analyzing circuits and systems, as well as providing solutions in discrete form is no longer an inconvenience. This paper describes how the z-transform can be used in the electrical circuit transient analysis. It shows the implementation of this method for both first-order and second-order circuits, considering their initial conditions. The results obtained in discrete form were compared with the analytical form of the results. Also an error calculation was made.
{"title":"Discrete Analysis of Electric Circuits in Transient Regime with Z-Transform","authors":"I. Sirbu, L. Mandache","doi":"10.1109/ATEE52255.2021.9425254","DOIUrl":"https://doi.org/10.1109/ATEE52255.2021.9425254","url":null,"abstract":"In the context of the accentuated development of digital technology, new methods of analysis and processing of signals have appeared, especially for electrical signals. Thus, the development of discrete methods for analyzing circuits and systems, as well as providing solutions in discrete form is no longer an inconvenience. This paper describes how the z-transform can be used in the electrical circuit transient analysis. It shows the implementation of this method for both first-order and second-order circuits, considering their initial conditions. The results obtained in discrete form were compared with the analytical form of the results. Also an error calculation was made.","PeriodicalId":359645,"journal":{"name":"2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131832910","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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