2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)最新文献_第3页

Blind spectrum sensing in cognitive vehicular ad hoc networks over Nakagami-m fading channels 认知车辆自组织网络在Nakagami-m衰落信道上的盲频谱感知

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076965

Imen Souid, Haithem Ben Chikha, R. Attia

{"title":"Blind spectrum sensing in cognitive vehicular ad hoc networks over Nakagami-m fading channels","authors":"Imen Souid, Haithem Ben Chikha, R. Attia","doi":"10.1109/CISTEM.2014.7076965","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076965","url":null,"abstract":"Exploiting cognitive radio (CR) technology in intelligent transportations systems have recently attracted a significant attention from the research communities. In particular, we study cooperative vehicular ad hoc networks (VANET) which are considered as an important application of CR. Spectrum sensing is a crucial task in CR applications. However, fading propagation channels can significantly limit the sensing performance. Thus, great efforts are made to model the fading and shadowing channel characteristics in CR-VANET. Indeed, experimental measurements have shown that the 5.9 GHz dedicated short range communication narrow-bad allocated to VANET is characterized with Nakagami distribution. Thus, blind eigenvalues-based spectrum sensing methods are appropriate in high fading environments. In this paper, we investigate blind detection in cooperative CR-VANET over Nakagami-m fading channels. The results reveal the great impact of fading channel characteristics and their severity on spectrum sensing performance. Besides, several cases of interest are examined such as the impact of fading factor, CR-vehicles number, samples number, etc.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131089737","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: 14

Application of the magneto-mechanical and thermal model to study the Linear Stepping Motors 应用磁-机-热模型研究直线步进电机

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7077004

M. Zaouia, N. Benamrouche, Kamel HELALI, N. Benyahia, H. Denoun

{"title":"Application of the magneto-mechanical and thermal model to study the Linear Stepping Motors","authors":"M. Zaouia, N. Benamrouche, Kamel HELALI, N. Benyahia, H. Denoun","doi":"10.1109/CISTEM.2014.7077004","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077004","url":null,"abstract":"This paper presents a magneto-mechanical and thermal model to study the dynamic performances and to investigate the temperature of tubular linear stepping motors. The studied tubular linear stepping motors are the classical tubular Linear Switched Reluctance Stepping Motor (LSRSM). The magneto-mechanical model is developed and applied to study the dynamic performances of tubular linear stepping motors. This model is based on the nonlinear electromagnetic equations expressed in terms of magnetic vector potential solved using the finite element method while incorporating the Newton-Raphson algorithm for the magnetic nonlinearity treatment. The sequential coupling between the electromagnetic and mechanical equations is carried out, firstly through the magnetic force, and secondly by the modified flux distribution due to the moving parts displacement simulated by the Macro-element method. The Thermal model is developed and applied to evaluate the temperature in the motors. This model is based on the resolution of the thermal equation solved by the finite element method where the source term is the power density generated in the coils.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115369436","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

Torque-speed characteristic determination of an excited doubly salient machine (DSPM) 双凸极电机(DSPM)转矩-转速特性的测定

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076978

N. Harkati, L. Moreau, M. E. Zaim, J. Charpentier

引用次数: 2

Detection time for deterministic and stochastic systems with unknown inputs 具有未知输入的确定性和随机系统的检测时间

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076982

Marwa Houiji, R. Hamdaoui, M. Aoun

引用次数: 2

Unknown input observer based flow rate and liquid level estimation for a quadruple tank process 基于未知输入观测器的四缸过程流量和液位估计

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7077062

Feten Smida, S. H. Said, F. M'sahli

引用次数: 0

Direct Torque Control optimization with loss minimization of induction motor 基于损耗最小化的感应电机直接转矩控制优化

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7077002

F. Tazerart, N. Taib, T. Rekioua, Djamila Rekioua, A. Tounzi

引用次数: 5

Modeling and performance improvement of a method for the disinfection of water by UV irradiation as a function of the power of the low pressure lamp discharge mode 低压灯放电模式功率对紫外线照射水消毒方法的建模和性能改进

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7077032

M. Ben Mustapha, Hassen Abdnnaceur

引用次数: 1

GMI sensor driven by DDS GMI传感器由DDS驱动

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076919

M. Zidi, A. Asfour, J. Yonnet

引用次数: 1

Fast islanding detection of PV grid connected inverters 光伏并网逆变器的快速孤岛检测

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076954

Manel Jebali Ben Ghorbal, Walid Ghzaiel, I. Slama Belkhodja

{"title":"Fast islanding detection of PV grid connected inverters","authors":"Manel Jebali Ben Ghorbal, Walid Ghzaiel, I. Slama Belkhodja","doi":"10.1109/CISTEM.2014.7076954","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076954","url":null,"abstract":"This paper proposes a new method for fast detection of the point of common coupling (PCC) voltage variations for a grid connected PV inverter. The main feature of this method is the rapidity of the algorithm in such a way that the detection can be carried out even when protection devices are not yet activated. The method uses only voltage sensors at the PCC and the algorithm is based on temporal redundancies obtained with previous stored measurements. The method consists in obtaining a residual, which is generated using simplifications introduced by the real-time constraints. The operation principle is as follows: in healthy mode, the residual is lower than a certain threshold. However, if there is PCC voltage variation, the residual value will increase, allowing a fast detection of this change. The theoretical analysis is performed in order to establish threshold analytic expressions in both cases, with and without PCC voltage variations, and to explain the residual waveform during faults. The proposed method is easy to implement, fast and does not require system parameters knowledge. Simulations and experimental results are presented to demonstrate the effectiveness of the proposed method.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124670560","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

Combining renewable energy and Vehicle to Grid sources for QoS in EAAS concept for smart grids systems 智能电网EAAS概念中可再生能源和车辆并网源实现QoS

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076928

N. B. Sendama, A. Hayar, A. Moutabir

引用次数: 1