城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7492473

Shahriar Sharifan, S. Ebrahimi, A. Oraee, H. Oraee

引用次数: 23

Stator-flux-oriented control for traction drives 牵引传动定子磁通定向控制

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7426744

V. Staudt, A. Steimel

引用次数: 5

Ground leakage current reduction in single-phase grid-connected power converter 单相并网电源变换器地漏电流的减小

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7427014

M. Hedayati, V. John

{"title":"Ground leakage current reduction in single-phase grid-connected power converter","authors":"M. Hedayati, V. John","doi":"10.1109/OPTIM.2015.7427014","DOIUrl":"https://doi.org/10.1109/OPTIM.2015.7427014","url":null,"abstract":"One of the major concerns during the design of grid-connected converters is meeting the electromagnetic interference (EMI) standards. Ground leakage current is another aspect which has a stringent limit due to safety concerns. Presence of high frequency pulses, with high dv/dt due to switching actions, in common-mode (CM) voltage excite parasitic capacitances of the power converters. This results in injection of peaky current to ground and causes high EMI noise level. In this paper a new method is proposed to make the CM voltage, of a single-phase grid-connected converter, sinusoidal and free of high frequency pulses. The proposed method consists of two parallel connected H-bridge power converters, which uses unipolar PWM with carrier interleaving angle of 180°. The proposed method reduces the ground leakage current by more than an order of magnitude. A modification to the LCL filter is adopted which further reduces the leakage current by 48%. It is shown that these modifications make the overall system insensitive to circuit nonidealities. Experimental results based on ground leakage current and EMI measurements on a 7.5kW parallel single-phase PWM-rectifier are presented. These results validate the effectiveness of the proposed method.","PeriodicalId":69201,"journal":{"name":"城市设计","volume":"34 1","pages":"107-112"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74771185","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

Smart ForTwo electric conversion Smart ForTwo电动转换

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7426996

Lucian Manica, V. Croitorescu

{"title":"Smart ForTwo electric conversion","authors":"Lucian Manica, V. Croitorescu","doi":"10.1109/OPTIM.2015.7426996","DOIUrl":"https://doi.org/10.1109/OPTIM.2015.7426996","url":null,"abstract":"During the last few years the European regulations regarding harmful emissions from vehicles lead to the appearance of alternative propulsion technologies in mass production. Hybrid and electrical driving represent the main solutions used by the vehicles manufacturers to significantly reduce the CO2 emissions or to achieve zero emissions. Nowadays, the battery technology represents the main obstacle in developing the alternative powertrain solutions. The batteries used for the vehicle's powertrain can only store a small quantity of energy, compared to their weight and size, thus they are heavy and take up much space. To maximize the value of this energy and to obtain a maximum autonomy, it is necessary to use electrical motors with higher efficiency. The energy losses due to the heat generation are better seen during fast braking and fast acceleration. Generated heat, emphasized as losses, is having a negative effect on motor efficiency. Using simulation, the electric motor was integrated in a mock-up virtual electric vehicle to study its behavior during a predefined cycle. The functional model that was built is used to determine the energy consumption, the power losses, the electric machine behavior and to study the dynamic behavior of the vehicle.","PeriodicalId":69201,"journal":{"name":"城市设计","volume":"49 1","pages":"731-736"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81872462","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

Numerical multi-objective optimization of a squirrel cage induction motor for industrial application 工业用鼠笼式感应电动机的多目标数值优化

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7426999

M. De Martin, F. Luise, S. Pieri, A. Tessarolo, C. Poloni

引用次数: 6

Current waveform optimization for ripple-free output torque of transverse flux reluctance machines 横磁阻电机无纹波输出转矩电流波形优化

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7426964

J. Borecki, H. Groke, B. Orlik, M. Joost

引用次数: 1

Ageing of photovoltaic cells under Concentrated Light 聚光下光伏电池的老化研究

城市设计 Pub Date : 2015-09-01 DOI: 10.1109/OPTIM.2015.7427048

D. Cotfas, Petru-Alexandru Cotfas, D. Floroian, L. Floroian, M. Cernat