Archives of Electrical Engineering最新文献_第7页

Practical aspects of testing superconducting electromagnets by the capacitor discharge method taking into account the non-linearity of circuit parameters 考虑电路参数非线性的电容放电法测试超导电磁铁的实用问题

IF 1.3

Archives of Electrical Engineering Pub Date : 2023-06-28 DOI: 10.24425/aee.2023.145411

M. I. M. Ichna, A. N. W. Ilk, M. A. W. Ołoszyk, M. I. Z. Iółko, S. Alla, P. I. S. Zwangruber

引用次数: 0

Impact of increased temperature of lower end-fitting of a composite long rod insulator on its mechanical strength under variable loads 变载荷下复合长棒绝缘子下端管件温度升高对其机械强度的影响

IF 1.3

Archives of Electrical Engineering Pub Date : 2023-06-28 DOI: 10.24425/aee.2023.145415

J. E. B. Ielecki, P. I. K. Otowski, J. A. W. Ańkowicz

{"title":"Impact of increased temperature of lower end-fitting of a composite long rod insulator on its mechanical strength under variable loads","authors":"J. E. B. Ielecki, P. I. K. Otowski, J. A. W. Ańkowicz","doi":"10.24425/aee.2023.145415","DOIUrl":"https://doi.org/10.24425/aee.2023.145415","url":null,"abstract":": This paper describes results of tensile mechanical strength testing of two types of composite suspension line insulators from two manufacturers. In order to take into account the operation of composite insulators in overhead transmission lines with high-temperature low-sag (HTLS) conductors, the testing of their static and fatigue strength was performed at both ambient and elevated temperatures. The results showed that the static mechanical strength of composite insulators decreased with an increase in the temperature of the lower end ﬁtting of the insulator, and proved that it followed a third-degree polynomial function. Calculations performed demonstrated that a signiﬁcant cause of reduction in strength was the increase in the radial stress following the temperature increase in the crimped glass-epoxy resin core of the insulator. The results of the fatigue strength testing demonstrated that the increase in the temperature of the lower end ﬁtting of the insulator up to 85 ◦ C degree had a little eﬀect on the fatigue strength of the tested composite insulators.","PeriodicalId":45464,"journal":{"name":"Archives of Electrical Engineering","volume":"78 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86662850","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

Induction machine with pole-changing winding for turbomechanisms 涡轮机构用变极绕组感应电机

IF 1.3

Archives of Electrical Engineering Pub Date : 2023-06-28 DOI: 10.24425/aee.2023.145417

引用次数: 0

Fault location of distribution network with distributed generation based on Karrenbauer transform and support vector machine regression 基于Karrenbauer变换和支持向量机回归的分布式发电配电网故障定位

IF 1.3

Archives of Electrical Engineering Pub Date : 2023-06-28 DOI: 10.24425/aee.2023.145420

引用次数: 0

Research on the influence of power frequency electric field of pantograph on passengers’ health in high-speed EMU 高速动车组受电弓工频电场对乘客健康影响的研究

IF 1.3

Archives of Electrical Engineering Pub Date : 2023-06-28 DOI: 10.24425/aee.2023.145421

引用次数: 0

Load regulation application of university campus based on solar power generation forecasting 基于太阳能发电预测的大学校园负荷调节应用

IF 1.3

Archives of Electrical Engineering Pub Date : 2023-06-28 DOI: 10.24425/aee.2023.145418

Guozheng HANo, Shujuan TANo, Zihan ZHANGo, Guozheng Han

引用次数: 0

Comparative study of DC/DC electric vehicle charging system with conventional transformer and planar transformer 传统变压器与平面变压器DC/DC电动汽车充电系统的比较研究

IF 1.3

Archives of Electrical Engineering Pub Date : 2023-06-28 DOI: 10.24425/aee.2023.145412

Maciej RUDAWSKIo

引用次数: 0

A new method for estimating fault location in radial medium voltage distribution network only using measurements at feeder beginning 提出了一种基于馈线起始点测量的径向中压配电网故障定位新方法

IF 1.3

Archives of Electrical Engineering Pub Date : 2023-06-28 DOI: 10.24425/aee.2023.145422

Truong NGOC-HUNGo

{"title":"A new method for estimating fault location in radial medium voltage distribution network only using measurements at feeder beginning","authors":"Truong NGOC-HUNGo","doi":"10.24425/aee.2023.145422","DOIUrl":"https://doi.org/10.24425/aee.2023.145422","url":null,"abstract":": This paper proposes a new fault location method in radial medium voltage distribution networks. The proposed method only uses the measurement data at the feeder beginning to approximate the characteristic equation showing the dependence between the positive-sequence voltage and phase angle at the monitoring point with the distance to the fault location for each fault type on each line segment. To determine these characteristic equation coeﬃcients, the entire distribution network will be modeled and simulated by four types of faults at diﬀerent locations along the lines to build the initial database. Based on this database, the mathematical functions in MATLAB software are applied to approximate these coeﬃcients corresponding to each type of fault for each line segment in the network. Then, from the current and voltage measurement data at the feeder beginning, the algorithms of global search, comparison, and fault ranking are used to ﬁnd out where the fault occurs on the distribution network. Two types of distribution network with and without branches are studied and simulated in this paper to verify and evaluate the eﬀectiveness of the proposed method.","PeriodicalId":45464,"journal":{"name":"Archives of Electrical Engineering","volume":"26 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74171604","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

Computation of electromagnetic forces in the windings of amorphous core transformers 非晶铁心变压器绕组电磁力的计算

IF 1.3

Archives of Electrical Engineering Pub Date : 2023-06-28 DOI: 10.24425/aee.2023.145423

B. A. D. Oan, T. H. O. D. Oan, D. U. T. U. o, T. U. -. O. L. E. o

引用次数: 0

Indium-gallium-zinc oxide thin-film preparation via single-step radio frequency sputter deposition using mixed-oxide powder targets 混合氧化物粉末靶单步射频溅射制备铟镓锌氧化物薄膜

IF 1.3

Archives of Electrical Engineering Pub Date : 2023-06-28 DOI: 10.24425/aee.2023.145425

Akahiko, Atake, Iroharu, awasaki, Hin, I. ., Chi, Oqiu

{"title":"Indium-gallium-zinc oxide thin-film preparation via single-step radio frequency sputter deposition using mixed-oxide powder targets","authors":"Akahiko, Atake, Iroharu, awasaki, Hin, I. ., Chi, Oqiu","doi":"10.24425/aee.2023.145425","DOIUrl":"https://doi.org/10.24425/aee.2023.145425","url":null,"abstract":": Indium gallium zinc oxide (In–Ga–Zn–O) thin ﬁlms, which are transparent conductive ﬁlms for liquid crystals and electroluminescent displays, were fabricated via single-step sputter deposition using one target containing diﬀerent proportions of indium oxide, gallium oxide, and zinc oxide powders. Experimental results suggest that the In–Ga–Zn–O thin ﬁlms can be prepared using the method of single-step radio frequency (RF) sputter deposition, applying a powder target containing indium oxide, gallium oxide, and zinc oxide. The In–Ga–Zn–O thin ﬁlms were prepared on Si substrates, and the deposition rate depended on the target composition. In these plasma processes, electron density and temperature were essentially independent of target composition. The prepared ﬁlms were very smooth with a root-mean-square roughness of less than 10 nm. The crystallinity of the ZnO peak was observed in all the ﬁlms; whereas the In and Ga peaks were not observed in the ﬁlms prepared. The X-ray photoelectron spectroscopy of the ﬁlms also revealed that the elemental concentration ratio of In–Ga–Zn–O thin ﬁlms could be prepared using one target, and that can be easily controlled by ratios in the In 2 O 3 /Ga 2 O 3 /ZnO composition in the powder target. The transmittances were > 75% at 800 nm for all the target mixtures, and increased with increasing In 2 O 3 in the powder target.","PeriodicalId":45464,"journal":{"name":"Archives of Electrical Engineering","volume":"67 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90734035","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