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2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)最新文献

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Introducing energy efficiency in nuclear power plants by using variable medium voltage frequency drives 通过使用可变中压频率驱动，提高核电站的能源效率
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133924
Laurenţiu Ciufu, M. Popescu
{"title":"Introducing energy efficiency in nuclear power plants by using variable medium voltage frequency drives","authors":"Laurenţiu Ciufu, M. Popescu","doi":"10.1109/ATEE.2015.7133924","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133924","url":null,"abstract":"The presented paper deals with an assessment study regarding the implementation of the energy efficiency concept in Nuclear Power Plants. This concept is mainly related to Directive 27/2012 of the European Parliament and the Council regarding the 20% set percent reduction in total energy consumption. For achieving this objective the authors propose a new control method for the nuclear unit's medium voltage large pumps, using state-of-art variable frequency drives. In order to prove the effectiveness of this method specific computational simulation software is performed, using CANDU reactor specific data. The main benefits using this approach are the increase reliability of the power production process and the significant decrease in overall plant internal services energy consumption, up to 12.4%. This percent can contribute to energy efficiency set percent with a total share of 15 MWh of 7600 MW which represents the current Romanian energy production capacity.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123501550","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: 7
A new technique of reactive power optimization Random Selection Paths RSP 无功优化新技术——随机选择路径RSP
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133944
Al-Bahrani Layth Tawfeeq, M. Eremia
{"title":"A new technique of reactive power optimization Random Selection Paths RSP","authors":"Al-Bahrani Layth Tawfeeq, M. Eremia","doi":"10.1109/ATEE.2015.7133944","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133944","url":null,"abstract":"This paper presents a new technique of Reactive Power Optimization called Random Selection Paths RSP, where a new implementation depending on limit the region search and choosing the candidates of the control variables randomly has been applied. The objective function of the proposed algorithm is to minimize the system active power loss. The control variables are generator bus voltages, transformer tap positions and switch-able shunt capacitor banks. The new technique can easily treat with the both of continuous and discrete control variables and has been applied for practical IEEE 6, IEEE 14 and IEEE 30 bus systems. The proposed algorithm shows better results as compared to previous work.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"12 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123627847","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
Computer numerically controlled device 计算机数控装置
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133774
F. Iliescu, I. Deaconu, Cristian Gabriel Fartinescu, A. Deaconu, A. Chirilă
{"title":"Computer numerically controlled device","authors":"F. Iliescu, I. Deaconu, Cristian Gabriel Fartinescu, A. Deaconu, A. Chirilă","doi":"10.1109/ATEE.2015.7133774","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133774","url":null,"abstract":"In the industry, prototyping is an unavoidable step. The three-dimensional (3D) models of prototypes are relatively easy to develop with the help of dedicated 3D software. The difficulties step in when the prototypes have to physically be manufactured. Moreover the manual prototyping is time consuming, expensive and sometimes requires specialized crafting in order to obtain alike parts that would behave similar during strength tests. The entire snag fades away when computer numerically controlled device is used. It is capable to process a wide range of materials (e.g. steel, aluminum, wood, glass) and reproduce with high accuracy identical items based on the 3D model designed with a computer. The prototype or small series production is cheaper and faster due to the repeatability of movements during the manufacturing process. In the paper are highlighted the steps and the requirements that must be followed in order to develop a 3-axis computer numerically controlled device.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"712 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124498279","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
System for highlighting the emotional states, used in assessing the teaching methods 系统强调情绪状态，用于评估教学方法
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133949
L. Milici, V. Placinta, Liliana Bujor, M. Milici
{"title":"System for highlighting the emotional states, used in assessing the teaching methods","authors":"L. Milici, V. Placinta, Liliana Bujor, M. Milici","doi":"10.1109/ATEE.2015.7133949","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133949","url":null,"abstract":"This paper presents a system that works in real time, designed for monitoring emotional states by evaluating the electrical resistance of the skin. The system is based on a microcontroller that communicates by Bluetooth protocol with a PC computer on that a virtual instrument is running. The system will be used to evaluate the teaching methods and the way they generate emotions to the people involved in the educational process. The principle underlying the device is the changing of the electrical resistance of the skin due to chemical reactions that occur when the emotional states generated by processing information occur. The system acquires data simultaneously from several subjects and saves them for further analysis.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127879420","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: 7
Higher education seen from inside: The case of Electrical Engineering students 从内部看高等教育:电气工程专业学生的案例
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133750
Sorin Piperca, C. Gheorghe
{"title":"Higher education seen from inside: The case of Electrical Engineering students","authors":"Sorin Piperca, C. Gheorghe","doi":"10.1109/ATEE.2015.7133750","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133750","url":null,"abstract":"This paper aims to understand students' perception of the quality of the teaching process and of the environment in which this takes place. It also studies students' perception of the match between the university's offer and the industry's expectations. The results are based on data collected among final-year students in the Faculty of Electrical Engineering from University POLITEHNICA of Bucharest.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126225566","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: 3
Comparative study for reversible pump at variable speed in PMSM applications 变频可逆泵在永磁同步电机中的应用对比研究
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133765
I. Ducar, C. Marinescu
{"title":"Comparative study for reversible pump at variable speed in PMSM applications","authors":"I. Ducar, C. Marinescu","doi":"10.1109/ATEE.2015.7133765","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133765","url":null,"abstract":"The main objective of this paper is to find an improved solution to increase the efficiency of permanent magnet synchronous machine (PMSM) drive system. In this paper two methods are presented. Both methods operate in the flux-weakening operation regime. Only the PMSM comportment is treated here. Each method has its originality. All the results of this work have been obtained in Matlab Simulink program. The paper presented here does not treat the hydraulic problems. The aim is to find the best operating mode for a pumped storage system supplied by variable renewable energy sources (RES) energy based source.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"229 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133930189","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: 8
Different methods used to assess the radiated fields of economic lamps regarding human exposure 评估经济灯对人体照射辐射场的不同方法
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133832
M. Costea, I. Băran, T. Leonida
{"title":"Different methods used to assess the radiated fields of economic lamps regarding human exposure","authors":"M. Costea, I. Băran, T. Leonida","doi":"10.1109/ATEE.2015.7133832","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133832","url":null,"abstract":"Nowadays the economic lamps have replaced, in some countries even by law, the incandescent bulbs. Despite the evident advantages of this type of lamp in terms of energy consumption, many concerns are raised regarding the network's pollution with current harmonics and emission of high frequency radiated fields, during the lamp operation, which could affect the public health. This paper presents and compare, based on measurements, two different methods which could evaluate the radiated fields caused by these lamps.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134180428","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
Some important effects of the water jet and laser cutting methods on the magnetic properties of the non-oriented silicon iron sheets 研究了水射流和激光切割方法对无取向硅铁片磁性能的影响
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133856
V. Păltânea, G. Păltânea, H. Gavrilă
{"title":"Some important effects of the water jet and laser cutting methods on the magnetic properties of the non-oriented silicon iron sheets","authors":"V. Păltânea, G. Păltânea, H. Gavrilă","doi":"10.1109/ATEE.2015.7133856","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133856","url":null,"abstract":"Nowadays it is very important to use non-oriented electrical alloys, which must have a very good quality and must be cut through a proper method that leads to a minimum energy loss value. The manufacturers of the electrical machines want to minimize the damage of the magnetic properties during the cutting process, in order to produce high efficiency motors or generators. In this paper are presented two non-conventional cutting technologies, which are used in the prototype production of the magnetic cores. These two methods have significant effects on the area near the cut edge; the water jet produces important burs and oxidation of the material and the laser cutting generates high local thermal stresses that increase the total energy losses of the magnetic core. There were tested steel samples of fully processed non-oriented alloys (NO FeSi) grades, M400-65A and M800-65A, with an area of 300 × 30 mm2. The magnetic properties were measured with a laboratory single strip tester in the range of frequency from 10 ÷ 400 Hz at 1 T peak magnetic polarization.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131553024","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: 9
Inertial sensor signals denoising with directed transfer function 惯性传感器信号的有向传递函数去噪
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133938
I. Edu, T. Grigorie, F. Adochiei, C. Rotaru, N. Jula
{"title":"Inertial sensor signals denoising with directed transfer function","authors":"I. Edu, T. Grigorie, F. Adochiei, C. Rotaru, N. Jula","doi":"10.1109/ATEE.2015.7133938","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133938","url":null,"abstract":"In order to achieve precise navigation information on the displacement of a vehicle in terms of position, speed, acceleration and direction we are suggesting the use of a new software procedure for processing data received from miniaturized inertial navigation systems. A new method for establishing the optimum decomposition level of the Wavelet transform is proposed. This method was used for filtering variable acceleration signals received from an accelerometer. In our next investigations we intend to implement this algorithm for the pre-calibration of two or tri-dimensional navigation systems containing miniaturized accelerometers and gyros.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130769459","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
A LiFePO4 battery discharge simulator for EV applications — Part 1: Determining the optimal circuit based battery model 电动汽车用磷酸铁锂电池放电模拟器。第1部分:确定基于电路的最佳电池模型
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133925
B. Enache, M. Alexandru, L. Constantinescu
{"title":"A LiFePO4 battery discharge simulator for EV applications — Part 1: Determining the optimal circuit based battery model","authors":"B. Enache, M. Alexandru, L. Constantinescu","doi":"10.1109/ATEE.2015.7133925","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133925","url":null,"abstract":"This paper, the first of a series of papers on developing a LiFePO4 (LFP) battery discharge simulator for EV applications, presents a new strategy for determining the optimal circuit based battery model. The proposed methodology has the fallowing novel features: a new test for establishing the performances of the model and a multi-criteria analysis for determining the optimal number of resistor-capacitor branches. Then the model is validated using data from a LFP battery submitted to discharge in concordance to a driving cycle.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131293691","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: 3
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