2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)最新文献_第6页

Split-Pi Converter for Resistance Welding Application 电阻焊用分体式变换器

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI: 10.1109/KhPIWeek51551.2020.9250113

T. Karbivska, Yuliia Kozhushko, Nataraj Barath J G, Oleksandr F. Bondarenko

引用次数: 1

Application of IEEE 1459-2010 for the power investigation a traction substation transformer secondary voltage IEEE 1459-2010在牵引变电所变压器二次电压研究中的应用

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI: 10.1109/KhPIWeek51551.2020.9250094

O. Todorov, O. Bialobrzheskyi, Sulym Andrii

{"title":"Application of IEEE 1459-2010 for the power investigation a traction substation transformer secondary voltage","authors":"O. Todorov, O. Bialobrzheskyi, Sulym Andrii","doi":"10.1109/KhPIWeek51551.2020.9250094","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250094","url":null,"abstract":"Today, with a steady increase in the number of consumers in which semiconductor converters are available, the nonlinear distortions value in electricity is increasing. Assessment of the electricity quality in traction networks is a problem related to the complexity of energy processes mathematical formalization in unballanced and non-sinusoid terms. Therefore, there is a need to find a calculation method with simple implementation and high informativeness indicators. The purpose is in the power components investigation of the secondary busbars a traction substation transformer, using the standard of IEEE 1459 - 2010. Guided by order of determining the instantaneous power components, regulated by standard IEEE 1459-2010, using the Fourier transform, the power values for each of the secondary voltage phases a three-phase transformer and the three phases as a whole were calculated. It is established that during the calculation as indicators reflecting of unballanced three-phase transformer mode, is use only fundamental harmonic components. This does not take into account the transition effect of pair harmonics and multiples of three harmonics, respectively, on the negative and zero sequences. It is noted, that the reactive power is calculated only by the fundamental harmonic. The higher harmonics reactive power is not included in recommended for definition. The results can be used in electrical energy control and metering systems, as motivating, to take steps to maintain of electricity quality required level at the metering point.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131923240","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

Comparison of Technical and Economical Characteristics of Various Types of the Surface of Convective Heat Transfer 不同类型对流换热表面的技术经济特性比较

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI: 10.1109/KhPIWeek51551.2020.9250167

I. Halushchak

{"title":"Comparison of Technical and Economical Characteristics of Various Types of the Surface of Convective Heat Transfer","authors":"I. Halushchak","doi":"10.1109/KhPIWeek51551.2020.9250167","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250167","url":null,"abstract":"The results of numerical and computational studies of the technical and economic characteristics of one of the promising types of tube finning - transverse punched spiral-tape are presented. As a result of a numerical study, the share of all sections of the tube surface with a punched spiral finning in heat transfer with the change of all geometric dimensions of the finning were determined. It was established that heat transfer occurs mainly through the surface of the fins - the proportion of the surface of the fins in heat transfer and specific heat perception is 82 … 96%. The surface of the punched part of the fins at the maximum acceptable height of the petals transfers up to 80 … 84% of the heat. The average surface heat transfer coefficient of the punched part of the fins is much higher than the solid part. In a numerical experiment, it is 2 times higher (120 $mathrm{w} /mathbf{m}^{2}{}^{circ}mathbf{C}$ versus 60 $mathbf{W}/mathbf{m}^{2}{}^{circ}mathbf{C}$). Consequently, the required value of the heating surface and its metal consumption and cost are reduced. As a result of a computational study, seven parameters that characterize the technical and economic efficiency of the five options for the heating surface of the P-83 boiler-utilizer were compared. Staggered banks with a punched spiral finning have the best values of all the compared parameters, except for aerodynamic resistance. This variant of the heating surface provides the greatest metal savings of 26.7%. The staggered banks with continuous finning and in-line banks with punched finning have approximately identical values of the majority of the compared parameters are, but the aerodynamic resistance of the in-line banks is much lower (1882 Pa against 2597.4 Pa). Therefore, their use is preferable. The staggered smooth tube banks have the worst values of all compared parameters.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131677616","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

Improving the Efficiency of a Linear Pulse Electromechanical Accelerator Due to Excitation by a Series of Pulses 利用一系列脉冲激励提高直线脉冲机电加速器效率

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI: 10.1109/KhPIWeek51551.2020.9250077

V. Bolyukh, I. S. Shchukin

{"title":"Improving the Efficiency of a Linear Pulse Electromechanical Accelerator Due to Excitation by a Series of Pulses","authors":"V. Bolyukh, I. S. Shchukin","doi":"10.1109/KhPIWeek51551.2020.9250077","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250077","url":null,"abstract":"A mathematical model of a linear pulsed electromechanical accelerator (LPEA) of the induction type has been developed, in which, to take into account the interconnected electrical, magnetic, mechanical and thermal processes, the equations are presented in a recursive form. The electromechanical characteristics of LPEA were obtained upon excitation by a series of five pulses, which are formed by sections of a capacitive energy storage unit (CES). It is shown that feeding LPEA from sections of the CES allows, due to the time-stretching process of the force action, to significantly reduce the amplitude of the electrodynamic force (EDF), which manifests itself as the recoil force. If the sections of the CES are the same, then the LPEA efficiency coefficient, equal to the ratio of the maximum speed of the conductive armature (CA) to the maximum recoil force, is 2.3 times higher when powered by a series of pulses than when supplied with a single pulse. With a sequential increase in the energy of the sections of the CES due to voltage or due to capacities, the efficiency coefficient of LPEA additionally increases by 15-20%.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133272234","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

Methods And Means Of Polarization-Correlation Microscopy Of Optically Anisotropic Biological Layers 光学各向异性生物层偏振相关显微镜的方法与手段

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI: 10.1109/KhPIWeek51551.2020.9250171

O. Ushenko, V. Zhytaryuk, V. Ushenko, O. Olar, M. Kovalchuk, M. Talakh, V. Dvorzhak

引用次数: 0

Electrostatic Modeling of the Process of Wetting of Charged Polymer Paper in Honeycomb Core Manufacturing 蜂窝芯制造中带电聚合物纸润湿过程的静电建模

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI: 10.1109/KhPIWeek51551.2020.9250084

A. Kondratiev, Michael Slivinsky, T. Nabokina, A. Tsaritsynskyi

引用次数: 0

Motor Drive System with Double-Delta-Sourced Stator Winding and Two Modulated NPC Converters 电机驱动系统与双三角源定子绕组和两个调制的NPC变换器

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI: 10.1109/KhPIWeek51551.2020.9250100

V. Oleschuk, I. Vasiliev

引用次数: 2

Analysis with 3D FEA of Partial Demagnetization for an IPM PMSG IPM永磁同步电机部分消磁的三维有限元分析

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI: 10.1109/KhPIWeek51551.2020.9250124

Roberto Eduardo Quintal Palomo, M. F. Bañuelos, R. P. Escalante, Oleksandr F. Bondarenko

引用次数: 0

Scale-Selective Differentiation Of Mueller-Matrix Images Of Polycrystalline Networks Of Biological Tissues And Fluids Of Human Organs 生物组织和人体器官液体的多晶网络mueller矩阵图像的尺度选择性分化

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI: 10.1109/KhPIWeek51551.2020.9250082

A. Bodnar, B. Bodnar, V. Protsyuk, V. Vasyuk, O. Ushenko, V. Zhytaryuk, V. Ushenko, O. Olar, O. Yatsko

{"title":"Scale-Selective Differentiation Of Mueller-Matrix Images Of Polycrystalline Networks Of Biological Tissues And Fluids Of Human Organs","authors":"A. Bodnar, B. Bodnar, V. Protsyuk, V. Vasyuk, O. Ushenko, V. Zhytaryuk, V. Ushenko, O. Olar, O. Yatsko","doi":"10.1109/KhPIWeek51551.2020.9250082","DOIUrl":"https://doi.org/10.1109/KhPIWeek51551.2020.9250082","url":null,"abstract":"The results are presented: Justification of the analytical possibilities of using wavelet analysis of azimuthally independent coordinate distributions of the values of multifunctional polarization microscopy parameters of optically anisotropic networks of histological sections of biological tissues of the uterine wall and polycrystalline films of the synovial fluid of a human joint with arthritis and osteoarthritis. The use of wavelet analysis of the distributions of the values of the Mueller-matrix invariants characterizing the linear and circular birefringence of the fibrillar network of the cervix and polycrystalline films of the synovial fluid of a human joint with arthritis and osteoarthritis. Identification of opportunities for early diagnosis and differentiation of the severity of precancerous conditions of cervical tissue based on certain relationships between statistical moments of the 1st - 4th orders characterizing the distribution of the amplitudes of wavelet coefficients at different scales of the MHAT function and the distribution of parameters describing phase anisotropy biological layers. Identification of opportunities for early diagnosis and differentiation of the severity of inflammatory conditions of polycrystalline films of synovial fluid of a human joint with arthritis and osteoarthritis.","PeriodicalId":115140,"journal":{"name":"2020 IEEE KhPI Week on Advanced Technology (KhPIWeek)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127355280","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

Investment attractiveness of the small hydropower sector and its impact on reducing carbon dioxide emissions 小水电行业的投资吸引力及其对减少二氧化碳排放的影响

2020 IEEE KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2020-10-05 DOI: 10.1109/KhPIWeek51551.2020.9250076

T. Kurbatova, D. Lysenko

引用次数: 1