2017 Iranian Conference on Electrical Engineering (ICEE)最新文献_第8页

Simulation of electrical arc stochastic behaviour in CO2 circuit breaker and its advantages in comparison with conventional electrical arc black box models CO2断路器电弧随机行为模拟及其与传统电弧黑箱模型的优越性

2017 Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2017-05-01 DOI: 10.1109/IRANIANCEE.2017.7985243

R. Sargazi, A. Akbari, Ali Asghar Razikazemi

{"title":"Simulation of electrical arc stochastic behaviour in CO2 circuit breaker and its advantages in comparison with conventional electrical arc black box models","authors":"R. Sargazi, A. Akbari, Ali Asghar Razikazemi","doi":"10.1109/IRANIANCEE.2017.7985243","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2017.7985243","url":null,"abstract":"nowadays utilization of SF6 in gaseous circuit breakers (GCB) is suppressed due to global warming. Among these, combined gaseous dielectric such as SF6/N2, N2/CO2, and CO2 have proven their suitability as a substitute for pure SF6. The once estimation of electric arc profile in circuit breaker with different gaseous medium is substantial for designing and performance of them, during past decades many research is performed, which some of them lead to the black box models. Legros-Genon is the only one of black box models which is able to consider stochastic behaviour of electrical arc construction process. On the one hand, as parameters estimation methods for black box models are mathematical, which obtained from one or several limited test shot, stochastic process of electrical arc construction can't be considered. On the other hand conventional black box models haven't enough flexibility to modify themselves with operational conditions. In this paper alongside comprehensive review and simulation of black box models in a typical CO2 circuit breaker, the advantages of Legros-Genon model, which described by means of Weibull distribution function, versus conventional models is investigated.","PeriodicalId":161929,"journal":{"name":"2017 Iranian Conference on Electrical Engineering (ICEE)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125760066","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

A new pan-sharpening method based on cartoon-texture decomposition and compressed sensing 一种基于卡通纹理分解和压缩感知的泛锐化方法

2017 Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2017-05-01 DOI: 10.1109/IRANIANCEE.2017.7985339

Sadegh Najafzadeh, H. Ghassemian

引用次数: 1

Formulating multilateral trade-off of sensing, missed idle and transmission times in dynamic spectrum access networks 制定动态频谱接入网中感知、错过空闲和传输时间的多边权衡

2017 Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2017-05-01 DOI: 10.1109/IRANIANCEE.2017.7985341

M. Amini, M. Mahdavi, M. Omidi

{"title":"Formulating multilateral trade-off of sensing, missed idle and transmission times in dynamic spectrum access networks","authors":"M. Amini, M. Mahdavi, M. Omidi","doi":"10.1109/IRANIANCEE.2017.7985341","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2017.7985341","url":null,"abstract":"many studies have been done in cognitive radios to maximize the network efficiency. The efficiency is usually defined in the form of throughput, energy efficiency or spectrum efficiency. With the advent of dynamic spectrum access concept in wireless networks, efficiency in such networks must be defined in order to best consider all the important metrics involved. For example, many works in cognitive radio network (CRN) neglect the interference due to primary user returns to the frequency band, and moreover; nobody has considered missed idle times during waiting throughout the entire current frame when the channel is sensed busy at the beginning. Both mentioned interference and missed opportunities depend on primary user traffic characteristics, secondary network communication protocol, sensing time and transmission time. Clearly, to consider them, we define and formulate a new efficiency metric in network dynamic access strategy called Access Efficiency in order to consider both interference, sensing time and missed opportunities due to transmission and waiting times respectively. Then, the optimized values for sensing and transmission time are computed using genetic algorithm in order to maximize Access Efficiency. The optimization point concurrently reduces missed idle times and maximizes successful transmission times (conventional throughput). It is obvious that a network protocol with higher Access Efficiency misses less idle times and imposes less collision on users.","PeriodicalId":161929,"journal":{"name":"2017 Iranian Conference on Electrical Engineering (ICEE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128237374","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

Condition assessment of arc contacts through dynamic resistance measurement (DRM) and wavelet analysis 基于动态电阻测量和小波分析的电弧触点状态评估

2017 Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2017-05-01 DOI: 10.1109/IRANIANCEE.2017.7985212

Mohammad Abdollah, A. Razi-Kazemi

引用次数: 5

Effects of flexible ramping product on improving power system real-time operation 柔性匝道产品对提高电力系统实时性的影响

2017 Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2017-05-01 DOI: 10.1109/IRANIANCEE.2017.7985222

M. Khoshjahan, M. Fotuhi‐Firuzabad, M. Moeini‐Aghtaie

引用次数: 2

Similarity based context for nonparametric scene parsing 基于相似度的非参数场景分析

2017 Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2017-05-01 DOI: 10.1109/IRANIANCEE.2017.7985282

Parvaneh Alinia, Parvin Razzaghi

引用次数: 0

On selecting duplex-mode and resource allocation strategy in full duplex D2D communication 全双工D2D通信中双工模式的选择与资源分配策略

2017 Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2017-05-01 DOI: 10.1109/IRANIANCEE.2017.7985311

Alaa N. Kadhim, Foad Hajiaghajani, M. Rasti

{"title":"On selecting duplex-mode and resource allocation strategy in full duplex D2D communication","authors":"Alaa N. Kadhim, Foad Hajiaghajani, M. Rasti","doi":"10.1109/IRANIANCEE.2017.7985311","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2017.7985311","url":null,"abstract":"In this paper, we study merging Device-to-Device (D2D) communication with full-duplex (FD) communications under different resource allocation strategies, i.e., reuse, dedicated and cellular. In reuse strategy, the D2D communication takes place directly between D2D pair sharing the whole resources together with the cellular user, while in dedicated strategy, the direct D2D communication is given half of the resources. Enabling cellular strategy, however, the data of D2D communication goes through the Base Station (BS). In this study, we take into account both FD and half-duplex (HD) modes incorporating into reuse, dedicated and cellular strategies, and formulate the resource allocation problem in a two-tier system. Aiming to maximize the system throughput, we analyze the system adopting different duplex-modes and resource allocation strategies. Simulation results demonstrate that the superiority of FD communication is contingent to self-interference (SI) cancelation factor. Through deriving geographical patterns, we analyze the effect of location of cellular user on mode selection strategy taken by D2D pair to pick the best strategy. The results show that the dedicated strategy is the best choice when the cellular user is close to the D2D pair, while the reuse strategy is dominant, when opposite state holds. Furthermore, the results reveal that the system achieves the maximum throughput under reuse strategy when the cellular user is located close to BS.","PeriodicalId":161929,"journal":{"name":"2017 Iranian Conference on Electrical Engineering (ICEE)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127504347","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

Teleoperation with uncertain environment and communication channel: An ℋ∞ robust approach 具有不确定环境和通信信道的遥操作:一种h∞鲁棒方法

2017 Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2017-05-01 DOI: 10.1109/IRANIANCEE.2017.7985126

Pedram Agand, M. Motaharifar, H. Taghirad

引用次数: 1

A fast scheme for TD-MoM analysis of PEC surfaces in free space 自由空间PEC表面的快速TD-MoM分析方案

2017 Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2017-05-01 DOI: 10.1109/IRANIANCEE.2017.7985319

A. Soltani, Z. Firouzeh, H. Karami

引用次数: 0

Utilization of renewable resources for scheduling the hourly production in day-ahead markets and its effect on the nodal price 日前市场小时生产调度中可再生资源的利用及其对节点价格的影响

2017 Iranian Conference on Electrical Engineering (ICEE) Pub Date : 2017-05-01 DOI: 10.1109/IRANIANCEE.2017.7985236

M. Nassaj, H. Rastegar, S. Mehrnia, M. Abedi, S. Hosseinian

引用次数: 1