2015 IEEE 8th GCC Conference & Exhibition最新文献

Improved deterministic real-time estimation of Maximum Power Point in photovoltaic power systems 改进的光伏发电系统最大功率点的确定性实时估计

2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060077

Salish Maharjan, J. Peng, W. Xiao

引用次数: 3

Decentralized sliding mode control for load frequency problem in three - Area power systems 三区电力系统负荷频率问题的分散滑模控制

2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060100

Maksmilian Lukasz Klimontowicz, A. Al-Hinai, J. Peng

{"title":"Decentralized sliding mode control for load frequency problem in three - Area power systems","authors":"Maksmilian Lukasz Klimontowicz, A. Al-Hinai, J. Peng","doi":"10.1109/IEEEGCC.2015.7060100","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060100","url":null,"abstract":"Frequency issues exist in generation, transmission and load sectors. From the load point of view, frequency sensitive devices like engines or clocks require quasi constant frequency to work properly. Whereas in the transmission system, power losses like hysteresis and eddy currents in transformers are frequency dependent. At the generation side, it is essential to prevent rotor angle from exceeding maximal threshold value; thus avoiding generators becoming out-of-step. Many techniques and model predictive control were published to solve the load frequency control (LFC) problem. Moreover, current optimization methods and high performance computers allow engineers to optimize complicated linear and nonlinear problems within reasonable time. Among optimization techniques, genetic algorithm (GA) optimization is utilized by control designers. It is also supported by Optimtool - MATLAB toolbox. This paper presented a comparative study of conventional and sliding mode control (SMC) designs for LFC. Optimized conventional controllers (PI and PID) were applied into a three - area system. Generated responses from conventional controllers were compared to responses from systems equipped with decentralized SMC.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127128384","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

Adaptive hierarchical motion estimation optimization for scalable HEVC 可扩展HEVC的自适应分层运动估计优化

2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060088

Abdelrahman Abdelazim, A. Hamza

{"title":"Adaptive hierarchical motion estimation optimization for scalable HEVC","authors":"Abdelrahman Abdelazim, A. Hamza","doi":"10.1109/IEEEGCC.2015.7060088","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060088","url":null,"abstract":"The scalable extension of the HEVC Video Coding Standard (H.265) offers elaborate mechanisms for motion vector prediction and estimation. S-HEVC builds on the standard by extending predictor lists for Coding Unit blocks, utilizing base-layer information in the inference of enhancement-layer Coding Units. The complex, exhaustive search schemes in use can be aided by hierarchical optimizations in subpixel motion estimation, which we propose for slow-moving CUs per frame. In this paper we implement and test an adaptive optimization of motion estimation in the standard (SHM 6.1 software release), based on a statistical analysis of the behavior of subpixel motion vector differentials in each spatial mode per Coding Unit. We propose that the least granular mode (64×64 PEL macro-block in current release) contains sufficient information at subpixel levels to decide best-mode selection, i.e., whether a complete recursion through the inner partitions (higher granularity) is required in the estimation of a CU motion vector. We further propose that subpixel motion estimation overheads can be avoided below a set threshold, given conditions set in base and enhancement layer motion estimation for priorly computed modes in the same CU. Both optimization methods are tested across a diverse set of video sequences, producing negligible quality penalties at for a sizable reduction in encoding time.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"309 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126843613","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

Street lighting using solar powered LED light technology: Sultan Qaboos University Case Study 使用太阳能LED照明技术的街道照明:苏丹卡布斯大学案例研究

2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060015

M. Masoud

引用次数: 27

Extracting fetal ECG from a single maternal abdominal record 从单个母体腹部记录中提取胎儿心电图

2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060027

Mohammad Ayat, K. Assaleh, H. Al-Nashash

引用次数: 7

Design and performance evaluation of halbach array linear generator for wave energy converters 波能变换器用halbach阵列线性发电机的设计与性能评价

2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060035

A. Elgebaly, M. El-Nemr

引用次数: 7

Sensorless closed loop V/f control of medium-voltage high-power induction motor with synchronized space vector PWM 同步空间矢量PWM的中压大功率异步电动机无传感器闭环V/f控制

2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060091

Chimezie Adiuku, A. R. Beig, S. Kanukollu

引用次数: 12

A case study of the employment of social media in government agencies in Oman 阿曼政府机构使用社交媒体的案例研究

2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060089

Hassan A. Al-Wahaibi, Elham M. Al-Mukhaini, A. Al-Badi, Saqib Ali

{"title":"A case study of the employment of social media in government agencies in Oman","authors":"Hassan A. Al-Wahaibi, Elham M. Al-Mukhaini, A. Al-Badi, Saqib Ali","doi":"10.1109/IEEEGCC.2015.7060089","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2015.7060089","url":null,"abstract":"New technologies are affecting many different aspects of our lives. Social media is one of these, and has revolutionized communication between governments and their citizens. Both governments and citizens are benefitting through this social interaction, which has resulted in more effective services being offered to citizens. This research explores the Omani government agencies' readiness to use social media for delivering their services to the public. A qualitative approach is adopted to collect and analyze data that is related to the use of social media by Omani agencies, their benefits, challenges and their citizen/government relationship. This study contributes towards enriching the knowledge about the current use of social media by government agencies and revealing the main factors that encourage or delay the use of such sites by the government. The findings are based on an online survey and, in addition, an official talk with IT professionals in different government agencies. It has been indicated that Oman is moving towards utilizing social media sites in government services but the awareness of the potential importance of these sites in government processes is still limited. On the other hand, the relationship between government agencies and citizens is strengthening due to the transparency created by social media usage.","PeriodicalId":127217,"journal":{"name":"2015 IEEE 8th GCC Conference & Exhibition","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131796163","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: 6

A simple CB-PWM technique for five-phase matrix converters including over-modulation mode 包含过调制模式的五相矩阵变换器的简单CB-PWM技术

2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060058

S. Dabour, S. M. Allam, E. Rashad

引用次数: 12

Collaborative sensing for cognitive radio under log-normal shadowing 对数正态阴影下认知无线电协同传感

2015 IEEE 8th GCC Conference & Exhibition Pub Date : 2015-03-16 DOI: 10.1109/IEEEGCC.2015.7060083

Nedaa Al Hussien, M. Abdel-Hafez, K. Shuaib

引用次数: 7