城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7427031

E. Engevik, Astrid Røkke, R. Nilssen

引用次数: 7

Simulated, hands-on and remote laboratories for studying the solar cells 模拟，动手和远程实验室研究太阳能电池

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7426953

P. Cotfas, D. Cotfas, C. Gerigan

{"title":"Simulated, hands-on and remote laboratories for studying the solar cells","authors":"P. Cotfas, D. Cotfas, C. Gerigan","doi":"10.1109/OPTIM.2015.7426953","DOIUrl":"https://doi.org/10.1109/OPTIM.2015.7426953","url":null,"abstract":"There are many studies in the literature related to the introduction in the engineering curricula of simulated laboratories and, more recently, of remote laboratories to extend the area of applications, nowadays limited by the labs endowment and to use creatively the advantages of e-learning. The paper aims to present a solution for the experiments related to the solar cells field. The presented solution combines the three existing laboratories, namely simulated, hands-on and remote laboratories. The solution put together the software applications Multisim and LabVIEW, the hardware NI ELVIS and the SolarLab board developed by the authors. The choice was based on the easiness of exchanging data between software applications, the speed of creating electronic prototypes offered by NI ELVIS, the large number of lab works on testing and characterization of solar cells provided by the SolarLab board and the easiness of performing remote laboratories using the web publishing tool in LabVIEW. The study was conducted within the solar cells course held for students from Applied Electronics, Physics Engineering and for other courses that have as partial subject the solar cells. The results were obtained based on the feedback from students as well as the correctness in performing lab works by the students. During hands-on and remote labs, the students support the idea of combining classical instrumentation, virtual instrumentation and modern tools, such as SolarLab.","PeriodicalId":69201,"journal":{"name":"城市设计","volume":"22 1","pages":"206-211"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73440094","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: 5

Selection of soft magnetic materials for particle accelerator magnets 粒子加速器磁体软磁材料的选择

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7427037

V. Pricop, E. Helerea, M. Cernat

引用次数: 1

Comparison of zero voltage switching phase-shifted PWM full bridge DC-DC converter topologies 零电压开关移相PWM全桥DC-DC转换器拓扑结构的比较

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7427028

H. Aksoy, M. Aydemir

引用次数: 10

A new control technique for improving dynamic performance of mono inverter dual parallel induction motors in railway traction systems 一种改善铁路牵引系统中单逆变双并联异步电动机动态性能的新控制技术

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7427032

D. Yıldırım, Bulent Caglar

{"title":"A new control technique for improving dynamic performance of mono inverter dual parallel induction motors in railway traction systems","authors":"D. Yıldırım, Bulent Caglar","doi":"10.1109/OPTIM.2015.7427032","DOIUrl":"https://doi.org/10.1109/OPTIM.2015.7427032","url":null,"abstract":"This paper presents the use of particle swarm optimization (PSO) technique in order to find the best values of reference q axis currents, flux levels and slip frequency applied for adaptively control of mono inverter dual parallel (MIDP) induction motor drive systems. In most railway traction system applications, light railway vehicle bogie is actuated by two identical induction motors driven by a single inverter. Control of such a system is a hard task because two parallel connected induction motors may not be operated under exactly the same operating conditions at any time due to the slip-slide phenomenon. In order to satisfy good dynamic performance, the field oriented control method tailored with PSO based new method is used. The proposed control technique is based on the strategy that flux level in a motor can be optimized to operate at maximum efficiency for a given load torque and rotor speed. Moreover, a comparative study among master/slave, mean average, and new proposed PSO based control technique is presented and individual speed/torque performances are demonstrated under unbalanced motor loading conditions. The boundaries of PSO variables are limited with efficiency, magnetic saturation and inverter output voltage. This analysis is verified by simulations. Simulation results show that PSO is so efficient in order to find the optimum flux level. The new control technique is superior to the traditional ones in such a way that it has a faster torque response and reduced speed reference tracking error.","PeriodicalId":69201,"journal":{"name":"城市设计","volume":"78 1","pages":"756-761"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84063320","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

Optimization in design of electric machines: Methodology and workflow 电机优化设计:方法与工作流程

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7427030

S. Stipetić, Werner Miebach, D. Žarko

引用次数: 54

Wide band modeling of an air-core reactor for fast transient studies 用于快速瞬态研究的空芯电抗器宽带建模

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7427041

B. J. van Jarsveld, D. Nicolae

引用次数: 0

Modification on a simple soft switched boost converter 一个简单的软开关升压转换器的修改

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7427023

M. Mardaneh, Zhale Hashemi