2014 International Conference on Renewable Energy Research and Application (ICRERA)最新文献_第5页

Differential diffusion charge redistribution for photovoltaic cell-level power balancing 光伏电池级功率平衡的微分扩散电荷重分配

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI: 10.1109/ICRERA.2014.7016450

A. H. Chang, S. Leeb

{"title":"Differential diffusion charge redistribution for photovoltaic cell-level power balancing","authors":"A. H. Chang, S. Leeb","doi":"10.1109/ICRERA.2014.7016450","DOIUrl":"https://doi.org/10.1109/ICRERA.2014.7016450","url":null,"abstract":"Mismatch loss remains an important issue to address in PV systems, and many power electronic solutions have been proposed to recover these losses. However, conventional power electronics for solar power optimization often have to make tradeoffs among conversion efficiency, optimization granularity, and overall system cost. This paper presents a cell-level power balancing scheme that breaks the existing design paradigm. The proposed architecture simultaneously achieves maximum power point tracking without any external passive components at the cell-level, and maintains differential power processing with zero insertion loss. This is accomplished by leveraging the recently proposed diffusion charge redistribution technique, taking advantage of the readily available diffusion capacitance of solar cells to perform power balancing rather than relying on adding costly energy storage components. Furthermore, a dual current inverter interface is introduced to avoid processing common-mode generated power in order to minimize overall conversion loss. Significant boost in overall system efficiency is achieved under both matched and partial shading conditions. Simulation results are included to demonstrate the feasibility and benefit of this approach.","PeriodicalId":243870,"journal":{"name":"2014 International Conference on Renewable Energy Research and Application (ICRERA)","volume":"69 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130281567","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

Experimental investigation on high efficiency real-time control algorithms for IPMSMs ipmms高效实时控制算法的实验研究

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI: 10.1109/ICRERA.2014.7016531

M. Caruso, A. D. Di Tommaso, F. Genduso, R. Miceli

{"title":"Experimental investigation on high efficiency real-time control algorithms for IPMSMs","authors":"M. Caruso, A. D. Di Tommaso, F. Genduso, R. Miceli","doi":"10.1109/ICRERA.2014.7016531","DOIUrl":"https://doi.org/10.1109/ICRERA.2014.7016531","url":null,"abstract":"This paper describes an experimental investigation on the power losses variations occurring in an Interior Permanent Magnet Synchronous Motor (IPMSM) with respect to the direct axis current component. Such investigation can be useful to determine a mathematical model accounting for copper, iron and mechanical friction losses, and for the arrangement of a speed control drive system equipped with a real-time power losses minimization algorithm. In particular, a test bench has been set up in order to carry out all measurements and the final power loss identification. The test bed is composed by a IPMSM drive with a field oriented control (FOC) strategy, a power analyzer, a dynamometric brake and a computer for data storage and processing. The experimental investigation was carried out by making several tests at different speed, magnetization and load conditions. From the obtained results, it can be stated that the power losses occurring in the IPMSM can be minimized by acting on the direct axis current component, increasing, therefore, the efficiency, without decreasing the dynamic performances of the drive.","PeriodicalId":243870,"journal":{"name":"2014 International Conference on Renewable Energy Research and Application (ICRERA)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129502678","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: 40

Wind energy potential assessment in order to produce electrical energy for case study in Divandareh, Iran 在伊朗的Divandareh进行风能潜力评估，以产生电能

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI: 10.1109/ICRERA.2014.7016544

A. Hossieni, Vahid Rasouli, S. Rasouli

{"title":"Wind energy potential assessment in order to produce electrical energy for case study in Divandareh, Iran","authors":"A. Hossieni, Vahid Rasouli, S. Rasouli","doi":"10.1109/ICRERA.2014.7016544","DOIUrl":"https://doi.org/10.1109/ICRERA.2014.7016544","url":null,"abstract":"This paper evaluates the electricity production at Divandareh, a place located at Kurdistan, Iran through wind energy assessment using wind data of the site recorded in duration of a year at three different heights of 10, 30 and 50 meters. For this purpose, a statistical analysis of the measured wind data is performed. According to the US standards, the site is found to be a class-3 wind power site with power density of 336.18 W/m2 at 50 m height. Moreover, dominant flow direction of wind is checked through wind rose plotting. It has been shown that the site is suitable for wind energy development by installing wind turbines with tall towers. Thereupon, four different commercial wind turbines have been nominated in order for studying. Using characteristics of nominated wind turbines and analyzed wind data, the average power and annual output energy are obtained for each of them. Finally, after determination of capacity and availability factors and comparison of these factors among wind turbines and due to economical criteria, it is achieved that turbine model De Wind 48 has the most appropriateness with the selected site.","PeriodicalId":243870,"journal":{"name":"2014 International Conference on Renewable Energy Research and Application (ICRERA)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124995588","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: 12

Frequency-dependent modeling of grounding system for wind turbine lightning transient studies 风电机组雷电暂态接地系统的频率相关建模

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI: 10.1109/ICRERA.2014.7016522

V. Mashayekhi, S. Sadeghi, R. Moini, H. Karami, K. Sheshyekani, A. Nasiri

引用次数: 3

Comparison of different small signal modeling methods for bidirectional DC-DC converter 双向DC-DC变换器小信号建模方法的比较

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI: 10.1109/ICRERA.2014.7016518

Enes Ugur, B. Vural

引用次数: 7

The emergency control strategies of short-run isolated island wind farm 短期孤岛风电场应急控制策略

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI: 10.1109/ICRERA.2014.7016557

Rui Zhang, Xiangning Lin, Pengyu Yang, Zhengtian Li, Yilan Yu, Haocheng Sun

引用次数: 9

Thermal management of power LED system 电源LED系统的热管理

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI: 10.1109/ICRERA.2014.7016487

H. Akca, Y. Yaşa, Ramazan Ayaz, A. Durusu, Ali Ajder, I. Nakir, M. Tanrioven

引用次数: 7

Underwater hydro unit with the combined energy extraction 水下水力发电机组与联合能源提取

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI: 10.1109/ICRERA.2014.7016549

A. Navasardian

引用次数: 3

Policy trends of renewable energy in Korea 韩国可再生能源政策动向

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI: 10.1109/ICRERA.2014.7016559

S. Han, Hyunchul Shin

引用次数: 18

Optimal charge control of electric vehicles in parking stations for cost minimization in V2G concept V2G概念下停车站电动汽车成本最小化的最优充电控制

2014 International Conference on Renewable Energy Research and Application (ICRERA) Pub Date : 2014-10-01 DOI: 10.1109/ICRERA.2014.7016525

H. Turker, A. Radu, S. Bacha, D. Frey, J. Richer, P. Lebrusq

{"title":"Optimal charge control of electric vehicles in parking stations for cost minimization in V2G concept","authors":"H. Turker, A. Radu, S. Bacha, D. Frey, J. Richer, P. Lebrusq","doi":"10.1109/ICRERA.2014.7016525","DOIUrl":"https://doi.org/10.1109/ICRERA.2014.7016525","url":null,"abstract":"In this paper, we consider the coordinated charging control of electrical vehicle (EV) in the charging stations. The goals are to minimize the total charging cost of all the vehicles at the charging station, respecting subscription type to electricity for charging station. The algorithm is based on a given future electricity prices and uses linear programming. This cost reduction of charging being achieved through bidirectional power flow between vehicles and grid. Thus functionalities of electrical vehicle can be divided into two aspects: on one hand, battery of the EV can be considered as a variable load. With optimal charging or smart charging for the battery, vehicle owners could maximize their profits by purchasing energy, G2V (Grid to Vehicle), at the lowest possible electricity price and in on the other hand, battery of the EV canal so be considered as energy storage capacity which has possibility to provide energy V2G (Vehicle to Grid). After the simulations performed by applying this strategy to coordinate EV charging, we achieved a cost reduction with 20% from the initial cost.","PeriodicalId":243870,"journal":{"name":"2014 International Conference on Renewable Energy Research and Application (ICRERA)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133772218","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: 12