2020 International Ural Conference on Electrical Power Engineering (UralCon)最新文献_第7页

Designs for Mounting Reed Switches in Vicinity of AC and DC Buses 在交流和直流母线附近安装簧片开关的设计

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216294

M. Kletsel’, A. Barukin, B. Mashrapov

引用次数: 7

Research of Magnetic-Liquid Shaft Sealers of Electric Motors 电机磁液轴封器的研究

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216257

A. Vlasov, V. Poletaev

引用次数: 1

Calculating Simulation Model Parameters for Electromechanical System of Rolling Mill Stand 轧机机架机电系统仿真模型参数的计算

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216265

A. Karandaev, S. Baskov, O. Gasiyarova, B. Loginov, V. Khramshin

{"title":"Calculating Simulation Model Parameters for Electromechanical System of Rolling Mill Stand","authors":"A. Karandaev, S. Baskov, O. Gasiyarova, B. Loginov, V. Khramshin","doi":"10.1109/UralCon49858.2020.9216265","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216265","url":null,"abstract":"Improving the precision of calculating the model parameters of the rolling stand electromechanical system is a relevant problem. When developing models, such systems are assumed to be two-mass ones with an elastic constraint and angular gaps in the transmitting shaft line (spindle). Applying the technique for calculating the parameters of the “drive-roll” simulation model based on experimentally recorded oscillograms is exemplified by the electric drives of the reversing rolling stand at the plate mill 5000 of PJSC Magnitogorsk Iron and Steel Works. The spindle design has been considered; it is shown that gaps are most frequently formed at the coupling heads on the roll and the engine rotor sides. The drive model structure in a closed-loop speed control system is given. The approximation of the inner motor torque control loop transfer function by a second-order filter is justified. The frequency characteristics of the loop response for the disturbing effect have been studied. The oscillatory nature of the transient torque at the initial control adjustment has been proved. Processes have been simulated for shock loading and different speed control time constants. The optimal time constant variation range ensuring the reduction of oscillations in a closed-loop system is justified. The design transient torque curves are provided for the acceleration and shock loading modes at various angular gaps in the spindle joints. It is shown that at the optimal speed control setting, the angular gap affects the amplitude insignificantly. Recommendations are given for the further application of the research results.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115740178","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

[Copyright notice] (版权)

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/uralcon49858.2020.9216298

引用次数: 0

Effective Work of a Synchron Machine with Different Magnetic Conductivity on Permanent Magnets Excitation 不同磁导率同步电机对永磁体励磁的有效工作

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216242

Yury P. Filushov, Gennady M. Simakov, M. A. Pavlova

{"title":"Effective Work of a Synchron Machine with Different Magnetic Conductivity on Permanent Magnets Excitation","authors":"Yury P. Filushov, Gennady M. Simakov, M. A. Pavlova","doi":"10.1109/UralCon49858.2020.9216242","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216242","url":null,"abstract":"the relevance of the work is due to the desire to effectively control a synchronous machine with different magnetic conductivity along the d and q axes. The well-known solution for controlling the current along the transverse axis is characterized by a significant increase in reactive power with an increase in load and speed, which determines the increase in losses in steel, limits the maximum speed and does not provide a minimum of heat losses in the electric drive. The engine operation modes considered allow increasing the electromagnetic moment and rotation speed, ensuring the efficient use of the electric machine and the power supply of the electric drive under conditions of current and voltage limitation. The limiting characteristics of a synchronous machine by excitation from permanent magnets while limiting voltage and current are considered. The dependence of the position of the current vector relative to the flux of permanent magnets on its module is determined, delivering a maximum of the electromagnetic moment in an explicit pole synchronous machine. The energy efficiency of the proposed control methods is compared with the control of current along the transverse axis. The considered control solutions can be used in an electric drive of transport, where in the conditions of limiting voltage and current it is important to transfer large power to the executive mechanism due to the efficient use of an electric machinealready defines the components of your paper","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121441085","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

Simulation of Semiconductor Converter for Electromagnetic Separator 电磁分离器用半导体变换器的仿真

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216262

A. Vozmilov, A. Evdokimov, V. Charykov

引用次数: 0

Analysis of Power Quality and Pumping Units Operation's Optimization 电能质量分析与抽油机运行优化

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216254

R. Klyuev, R. Turluev, A. Khadzhiev

引用次数: 5

The Method of Faulted Section Estimation for Combined Overhead and Cable Power Lines Using Double-Ended Measurements 用双端测量法估算架空电缆联合输电线路的故障区段

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216299

A. Kulikov, A. Loskutov, P. Pelevin

{"title":"The Method of Faulted Section Estimation for Combined Overhead and Cable Power Lines Using Double-Ended Measurements","authors":"A. Kulikov, A. Loskutov, P. Pelevin","doi":"10.1109/UralCon49858.2020.9216299","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216299","url":null,"abstract":"The article proposes a new method for autoreclosing of combined overhead and cable power lines (OCPL) based on traveling wave methods, which allows to increase the reliability of their protection. Determination of the faulted section is based on the estimation of the level of transient signals. This indicates the simplicity of the method and reduced requirements for the corresponding digital processing algorithms. It is shown that the fault-induced transient during propagation to the line terminals attenuate in a different way depending on the faulted section of the OCPL. The ratio of the signal values at the two ends of the OCPL allows to determine the faulted section with high selectivity. To estimate the method, faults on the OCPL were simulated in PSCAD. The distortions introduced by the line discontinuity, substation equipment and secondary circuits of the measuring transformers were taken into account. The simulation results showed that the faulted section is determined correctly in most cases of faults on the OCPL The exception is short circuits in the overhead section within a small zone near the overhead-cable transition. In these overhead areas, which is several tens or hundreds of meters, the autoreclosing must be blocked.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126527432","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

Application of the Short Time Fourier Transform for Calculating Electric Energy Losses under the Conditions of a Non-Sinusoidal Voltage 短时傅里叶变换在非正弦电压条件下计算电能损耗的应用

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216250

A. Zhurkin, Yu. Matyunina, M. Rashevskaya

{"title":"Application of the Short Time Fourier Transform for Calculating Electric Energy Losses under the Conditions of a Non-Sinusoidal Voltage","authors":"A. Zhurkin, Yu. Matyunina, M. Rashevskaya","doi":"10.1109/UralCon49858.2020.9216250","DOIUrl":"https://doi.org/10.1109/UralCon49858.2020.9216250","url":null,"abstract":"The problem of calculating active electric energy losses under the conditions of a non-sinusoidal voltage in the 380 V network is considered. The network voltage is represented as a partially steady signal, with the time dependences of signal component frequencies or harmonic components being piecewise constant functions. This circumstance adds difficulty to the use of classic loss calculation methods, which do not allow the spectrum to be analyzed as a function of time. For solving the problem, the discrete-time short-time Fourier transform is applied. Based on the results of calculating the discrete-time short-time Fourier transform, the steadiness intervals are determined, in which the electric energy losses are subsequently calculated using the well-known formulas. For estimating the validity of the proposed approach, simulation is carried out of the electric network part containing an industrial load connected to a 380 V bus via a cable line in which the electric energy losses are calculated. A conclusion about the applicability of the short-time Fourier transform is drawn.","PeriodicalId":230353,"journal":{"name":"2020 International Ural Conference on Electrical Power Engineering (UralCon)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132036589","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: 2

Mathematical Models of Short-Circuit and Break Modes in Electric Networks with Multi-Circuitoverhead Lines 多路架空线电网短路和分断模式的数学模型

2020 International Ural Conference on Electrical Power Engineering (UralCon) Pub Date : 2020-09-01 DOI: 10.1109/UralCon49858.2020.9216271

Valery G. Goldshteyn, A. S. Vedernikov, Nikolay V. Tanaev

引用次数: 3