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Analysis of Different Type of Ring Permanent Magnets in Order to Achieve an Uniform Magnetic Field Around Them 不同类型环形永磁体的分析，以实现其周围的均匀磁场
2020 International Conference and Exposition on Electrical And Power Engineering (EPE) Pub Date : 2020-10-22 DOI: 10.1109/EPE50722.2020.9305525
M. Gliga, C. Pacurar, C. Munteanu, S. Andreica, Claudia Constantinecu, A. Giurgiuman
{"title":"Analysis of Different Type of Ring Permanent Magnets in Order to Achieve an Uniform Magnetic Field Around Them","authors":"M. Gliga, C. Pacurar, C. Munteanu, S. Andreica, Claudia Constantinecu, A. Giurgiuman","doi":"10.1109/EPE50722.2020.9305525","DOIUrl":"https://doi.org/10.1109/EPE50722.2020.9305525","url":null,"abstract":"Permanent magnets are found in more and more devices in the industry and increasing their functional performance leads to the efficiency of these devices that contain them. The aim of this paper is the analysis by numerical modelling of different sets of ring permanent magnets to determine the optimal positioning of the magnetization directions in order to obtain an uniform magnetic field on their surface. The analysis of different sets of ring permanent magnets by numerical modelling, starting from simple structures formed by a ring magnet and progressively reaching complex structures formed by five magnets to determine the influence of magnetization direction on specific field quantities in order to find the optimal orientation of the magnetization direction to obtain an uniform magnetic field on the outer surface of the magnets. Two sets of ring magnets are analysed and compared. In the first set the same magnetization direction is considered in all magnets, and in the second set the magnetization direction will be different.","PeriodicalId":250783,"journal":{"name":"2020 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115419595","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}
引用次数: 0
SAR Determination for Indoor, Far Field Exposure 室内远场辐射的SAR测定
2020 International Conference and Exposition on Electrical And Power Engineering (EPE) Pub Date : 2020-10-22 DOI: 10.1109/EPE50722.2020.9305617
O. Bejenaru, C. Lazarescu, M. Ursachianu, A. Sălceanu
{"title":"SAR Determination for Indoor, Far Field Exposure","authors":"O. Bejenaru, C. Lazarescu, M. Ursachianu, A. Sălceanu","doi":"10.1109/EPE50722.2020.9305617","DOIUrl":"https://doi.org/10.1109/EPE50722.2020.9305617","url":null,"abstract":"Electromagnetic compatibility (field recently extended with bio-electromagnetic compatibility) is a never-ending challenge for any type of radio-frequency non-ionizing radiation. Human behavior in this ubiquitous field is anytime a topic of constant interest. Evaluation of short or long term impact of electromagnetic non-ionizing radiation on humans should be priority. We here share a case study focused on the estimation of specific absorption rate (SAR). The electromagnetic source has been considered as far-field communication system, while the 3D human model has been previously presented and tested by the authors. The evaluation of human exposure is performed by determining the SAR values on the surface of the 3D human body model placed inside an office room, in various exposure scenarios. The SAR values have been determined by simulations using a specialized software program, SIMULIA CST Suite Studio, the Microwave Module of the software. The obtained SAR values have been compared with the limits imposed by standards in force.","PeriodicalId":250783,"journal":{"name":"2020 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128760987","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}
引用次数: 0
Benchmarking General-Purpose Neural Networks for Real-Time Pedestrian Detection 基于通用神经网络的实时行人检测
2020 International Conference and Exposition on Electrical And Power Engineering (EPE) Pub Date : 2020-10-22 DOI: 10.1109/EPE50722.2020.9305675
George-Zamfir Tiron, M. Poboroniuc
{"title":"Benchmarking General-Purpose Neural Networks for Real-Time Pedestrian Detection","authors":"George-Zamfir Tiron, M. Poboroniuc","doi":"10.1109/EPE50722.2020.9305675","DOIUrl":"https://doi.org/10.1109/EPE50722.2020.9305675","url":null,"abstract":"This paper presents the main steps and results on automotive applications aiming to detect pedestrians by means of object detection and recognition neural networks. The used training and testing datasets take into account the influence of different factors, such as environmental conditions and video-image acquisition characteristics, using a custom training and testing dataset, and critically evaluate the performance and capabilities of general-purpose neural networks in detecting pedestrians from usual images provided by a video camera.Following this goal, an analysis points out what differences occur in the final classification output of these neuronal networks using the same dataset for training while testing on real-life scenarios. In the end a general-purpose neural network which provides the best results in pedestrian detection (providing 2D bounding boxes) is proposed and its performances are discussed.","PeriodicalId":250783,"journal":{"name":"2020 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125341960","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}
引用次数: 0
Synthesis of PID Controller for the Automatic Control System with Imposed Performance based on the Multi-Objective Genetic Algorithm 基于多目标遗传算法的强加性能自动控制系统PID控制器综合
2020 International Conference and Exposition on Electrical And Power Engineering (EPE) Pub Date : 2020-10-22 DOI: 10.1109/EPE50722.2020.9305638
I. Cojuhari, I. Fiodorov, B. Izvoreanu, Dumitru Moraru
{"title":"Synthesis of PID Controller for the Automatic Control System with Imposed Performance based on the Multi-Objective Genetic Algorithm","authors":"I. Cojuhari, I. Fiodorov, B. Izvoreanu, Dumitru Moraru","doi":"10.1109/EPE50722.2020.9305638","DOIUrl":"https://doi.org/10.1109/EPE50722.2020.9305638","url":null,"abstract":"This paper presents an improved algorithm for tuning of the proportional-integral-derivative controller, according to the maximum stability degree criterion with implementation the optimization procedure, based on the multi-objective genetic algorithm. According to the maximum stability degree criterion, the tuning parameters of the typical controllers can be calculated by the given analytical expressions that depends on the value of maximum stability degree. Based on these analytical expressions, it is presented the implementation of the multi-objective genetic algorithm, that permits to calculate the tuning parameters, which offers to the control system the settled range of performance. The fitness function is settled based on the imposed performance to the control system as overshoot, settling time, rise time. The proposed algorithm was verified by the computer simulation and there are presented some case studies. The case study was done for the situation when the control object is approximated with model of object with second order inertia with/without time delay, and model of object with third order inertia.","PeriodicalId":250783,"journal":{"name":"2020 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126607290","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}
引用次数: 1
Developing a Simplified Network Model for Load-Flow and Harmonic Studies 开发一种简化的电网模型用于潮流和谐波研究
2020 International Conference and Exposition on Electrical And Power Engineering (EPE) Pub Date : 2020-10-22 DOI: 10.1109/EPE50722.2020.9305670
Andrea Schaefer, J. Hanson, G. Balzer
{"title":"Developing a Simplified Network Model for Load-Flow and Harmonic Studies","authors":"Andrea Schaefer, J. Hanson, G. Balzer","doi":"10.1109/EPE50722.2020.9305670","DOIUrl":"https://doi.org/10.1109/EPE50722.2020.9305670","url":null,"abstract":"The basis of every load-flow and resonance analysis is a suitable network model which may be difficult to find, e.g. due to missing data or required specific network characteristics. Therefore, a methodology to set up a simplified network model based on the honeycomb approach for load-flow and resonance analysis is introduced in this report. The aim is to build a simplified network in consideration of required characteristics, such as network topology and power plant feed-ins among others. Hereto, the network model is built out of equal honeycomb networks, which leads to a symmetrical and homogeneous network. To analyze and evaluate this approach, the method is applied on an exemplary 380-kV-transmission grid segment. A sensitivity study to verify the network characteristics as well as load-flow and resonance behavior is carried out. The results show that this approach allows to build up a scalable characteristic network model for e.g. investigating the impact of changes in the grid due to the current power system transformation towards the increase of renewable energies.","PeriodicalId":250783,"journal":{"name":"2020 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"33 S2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120978788","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}
引用次数: 0
Self-Consumption Indices Evaluation for a Residential Load Profile 住宅负荷剖面自耗指标评价
2020 International Conference and Exposition on Electrical And Power Engineering (EPE) Pub Date : 2020-10-22 DOI: 10.1109/EPE50722.2020.9305684
Tigănaşu Cosmin, Cercel George, Nemeş Ciprian
{"title":"Self-Consumption Indices Evaluation for a Residential Load Profile","authors":"Tigănaşu Cosmin, Cercel George, Nemeş Ciprian","doi":"10.1109/EPE50722.2020.9305684","DOIUrl":"https://doi.org/10.1109/EPE50722.2020.9305684","url":null,"abstract":"With the increase interest in the use of energy from renewable sources, the trend of using photovoltaic sources has become higher, due to the advantages that this technology offers. Their use on a larger scale in the residential sector is increasingly encouraged, with more and more people trying to reduce the level of global pollution by using them. For grid connected systems, the most important indices referred to is that of self-consumption. This indicates the level of energy exchange between the network and the photovoltaic system, the lower this index means that the efficiency of energy use produced in photovoltaic mode is high. This paper presents an analysis of the self-consumption indices of a residential profile.","PeriodicalId":250783,"journal":{"name":"2020 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116586063","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}
引用次数: 0
SPICE model of a real capacitor : Capacitive feature analysis with voltage variation 真实电容器的SPICE模型:随电压变化的电容特性分析
2020 International Conference and Exposition on Electrical And Power Engineering (EPE) Pub Date : 2020-10-22 DOI: 10.1109/EPE50722.2020.9305554
M. Staniloiu, H. Popescu, B. Glod, M. Iordache
{"title":"SPICE model of a real capacitor : Capacitive feature analysis with voltage variation","authors":"M. Staniloiu, H. Popescu, B. Glod, M. Iordache","doi":"10.1109/EPE50722.2020.9305554","DOIUrl":"https://doi.org/10.1109/EPE50722.2020.9305554","url":null,"abstract":"As it is known the passive components like the resistor, the coil and the capacitor in reality are not ideal components and have a nonlinear component. In this paper is started from the real equivalent circuit of a capacitor and is created a nonlinear SPICE model whose static capacity varies with voltage. The correctness of the SPICE model is studied on the capacitive region of the capacitor. Also, a study of the behavior of the SPICE model without considering the variation with temperature, aging, ESL and ESR will be presented. All to be considered in a future paper. The behavior of the SPICE model is compared with the behavior of the real capacitor and with the SPICE behavior of the capacitor proposed by the component manufacturer.","PeriodicalId":250783,"journal":{"name":"2020 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"16 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114022022","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}
引用次数: 4
Influence of High Voltage Bundle Configurations on Human Exposure 高压束结构对人体暴露的影响
2020 International Conference and Exposition on Electrical And Power Engineering (EPE) Pub Date : 2020-10-22 DOI: 10.1109/EPE50722.2020.9305635
A. Sălceanu, S. Vornicu, E. Lunca, M. Istrate
{"title":"Influence of High Voltage Bundle Configurations on Human Exposure","authors":"A. Sălceanu, S. Vornicu, E. Lunca, M. Istrate","doi":"10.1109/EPE50722.2020.9305635","DOIUrl":"https://doi.org/10.1109/EPE50722.2020.9305635","url":null,"abstract":"The paper is mainly dedicated to determining the influence of bundle conductors configurations on the electric and magnetic field levels determined at the standard height of 1 m above the ground. The technical-economic advantages are concisely presented, but also the inherent disadvantages of implementing such solutions. One of the main advantages is theoretically analyzed: the reduction of the risk of initiating corona discharges, as a result of the decrease of the potential gradient from the conductor surface, implicitly meaning the increase of the electric field strength near the ground. The theoretical approaches were reinforced by simulations performed with the help of ANSYS and EMFACDC software. It was considered the real case of a 400 kV network through which phase currents of 1050 A are transported, in three distinct variants: single conductor, double bundle and triple bundle. Electric field increases were found by 37% in the case of triple bundles, taking as reference a single conductor per phase. If the same total current is considered, the chosen bundle configurations have no influence on the generated magnetic field.","PeriodicalId":250783,"journal":{"name":"2020 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127010311","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}
引用次数: 0
LEDs and Measurements – How Much Light Source Influence the Measurement Results led和测量-光源对测量结果的影响程度
2020 International Conference and Exposition on Electrical And Power Engineering (EPE) Pub Date : 2020-10-22 DOI: 10.1109/EPE50722.2020.9305665
G. Bizjak
{"title":"LEDs and Measurements – How Much Light Source Influence the Measurement Results","authors":"G. Bizjak","doi":"10.1109/EPE50722.2020.9305665","DOIUrl":"https://doi.org/10.1109/EPE50722.2020.9305665","url":null,"abstract":"When measuring the lighting conditions in an indoor or outdoor environment (e.g. illuminance or luminance) one should always consider the conditions at which the photometer was calibrated and the used light source. In spite of ban of incandescent lamps years ago, photometers are still calibrated with the CIE standard illuminants A, which is realized by incandescent lamp at color temperature of 2865 K. But the measured light sources are usually not incandescent or tungsten halogen lamp. In most cases indoor lighting uses fluorescent lamps and outdoor lighting HID lamps. Beside that more and more LED lamps are used both indoor and outdoor. For cases where photometer is calibrated with different light source as the measured one the ISO/CIE 19476:2014 standard “Characterization of the Performance of Illuminance Meters and Luminance Meters” [1] recommends use of spectral mismatch correction factors for correction of results. Although useful, spectral mismatch correction factors are difficult to calculate and apply. Especially if one does not know the spectrum of measured light source and the spectral responsivity of the used instrument. Measurements without application of spectral mismatch correction factors may, on the other hand, result in larger measurement error. The paper deals so with a question: how large the measurement error, when measuring the illuminance under different light sources, could be with a lux meter of class C and without the mismatch correction factor correction.","PeriodicalId":250783,"journal":{"name":"2020 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127817359","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}
引用次数: 0
Technical Condition Monitoring of Impedance Bonds using Sensors and Dedicated Device 用传感器和专用设备监测阻抗键的技术状态
2020 International Conference and Exposition on Electrical And Power Engineering (EPE) Pub Date : 2020-10-22 DOI: 10.1109/EPE50722.2020.9305673
M. Adam, M. Andrusca, A. Dragomir, D. Astanei, R. Burlica
{"title":"Technical Condition Monitoring of Impedance Bonds using Sensors and Dedicated Device","authors":"M. Adam, M. Andrusca, A. Dragomir, D. Astanei, R. Burlica","doi":"10.1109/EPE50722.2020.9305673","DOIUrl":"https://doi.org/10.1109/EPE50722.2020.9305673","url":null,"abstract":"In nowadays, sensors technologies have expanded rapidly and have become cheaper. This has run to an increasing development in condition monitoring of systems, installations, structures, vehicles and also in railway transportation infrastructure using sensors and monitoring devices. This paper it proposes to present an experimental model of a monitoring device and its sensors for acquire data from an important electrical equipment of power supply system from electric traction, named impedance bond. The parameters which are acquired for that equipment are considered important and will lead to know its thermal stresses and real technical condition.","PeriodicalId":250783,"journal":{"name":"2020 International Conference and Exposition on Electrical And Power Engineering (EPE)","volume":"18 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131809657","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}
引用次数: 0
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