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LI Xinhai,FAN Dehe,MENG Chenxu,ZENG Lingcheng,YUANTuolai
Abstract: Due to various environmental factors,the relay platen status recognition needs manual inspection fora long time,and the current popular platen image recognition program requires a huge background computingarchitecture,which can not immediately obtain the verification information in the operation site,and s...
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Number of views:832 Amount of downloads:1504
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TANG Weifeng,WANG Changjiang
Abstract: In the motor controller of new energy vehicles,due to insufficient current capacity,high cost,andlimited heat dissipation capacity,parallel power devices are often used to extend current capability of power inverter for EV applications. Current imbalance can be caused by device parameter tolerances,parasit...
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Number of views:2202 Amount of downloads:1502
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LIU Juan,HU Xiaolei,TENG Yiyina,ZHANG Shiqi,ZHANG Zhe
Abstract: Hydrogen fuel cells air compressor is an important accessory of hydrogen fuel cell,but the high costcaused by its high energy consumption hinders the further development of hydrogen fuel cell. In recent years,theindustry has gradually adopted variable frequency drives to control the operation of hydrogen f...
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Number of views:1382 Amount of downloads:1500
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LU Xihao,QIAO Mingzhong,ZHANG Chi
Abstract: In view of the electromagnetic vibration and noise analysis of permanent magnet motor with Halbachstructure at rated power,the analytical expression of radial force wave of permanent magnet motor was established,and two kinds of main force waves which cause vibration and noise were analyzed. The main noise...
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Number of views:1813 Amount of downloads:1497
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DING Runchu,SHI Shuhuai,ZHUO Fang,WANG Feng
Abstract: The application of DC transmission and distribution network faces a variety of complex designscenarios,among which there are DC/DC conversion requirements with unipolar input and really bipolar output. The bipolar output of this application scenario can easily lead to unbalanced output voltage when the loa...
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Number of views:2666 Amount of downloads:1496
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LI Peiying,XIA Jiakuan,WAN Chengchao
Abstract: In view of the mechanical vibration of the manipulator joint servo system due to the existence offlexible links such as harmonic reducer and toothed belt,a mathematical model considering the change of stiffnesscoefficient and large reduction ratio was established,the mechanism of mechanical resonance was a...
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Number of views:1808 Amount of downloads:1493
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QIAN Xiao,MA Xiang,LÜ Leiyan,ZHANG Wenjie,WANG Ning,ZHI Yuemei
Abstract: Traditional power grid dispatching alarm algorithm has low alarm instruction operation efficiency,low power grid dispatching failure burst rate and high alarm error alarm rate,so the power grid dispatching alarmassociation rules and decision tree algorithm based on knowledge graph were proposed. The associ...
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Number of views:2335 Amount of downloads:1493
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WANG Chunhui,QU Xiaowei,WANG Mingyue,HAN Song,LI Teng
Abstract:In order to improve the debugging and fault monitoring and analysis capabilities of inverterproducts,the design scheme of network version process data acquisition and analysis software was proposed.Thecomposition and implementation of the software system were discussed,and the technical means such as multit...
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Number of views:906 Amount of downloads:1492
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CHEN Xiaoru,HUANG Longyi,YANG Mingjia,LAI Shengjie,CHI Zibin,XIA Chengjun
Abstract:In view of the lack of flexibility in the input and exit of the current metal sheath loop suppressiondevice for high voltage cables,the problems such as excessive induced voltage of the sheath and excessive powerloss were not considered when determining the suppression impedance value,a loop suppression dev...
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Number of views:873 Amount of downloads:1487
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SONG Mingxuan,FENG Yuan,ZHANG Tian,HE Fengyou,GAO Jie
Abstract: Aiming at the lack of realtime detection methods of operation status for NPC three-level inverter,anindirect detection method was studied. In this method,the commutation process of NPC three-level inverter wasanalyzed. And according to Kirchhoff's law,the current and voltage models of three-level circu...
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Number of views:2613 Amount of downloads:1485
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ZHANG Hao,WANG Xuanyuan,NING Bo,LIU Zhen,LIUYa,HUANG Hongwei
Abstract: In order to improve the actual utility of power electricity package decision and avoid the default riskcaused by blind choice,the response stability of power users according to their purchase contract was studied ,apeak-valley power electricity package decision-making method considering response stability ...
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Number of views:2723 Amount of downloads:1483
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ZHANG Zihua,LI Yan,XU Tianqi,WANG Yangguang,DENG Xiaoliang
Abstract: In order to improve the prediction accuracy of wind power in new wind farms effectively,theinfluencing factors between relevant wind farms were considered. A variational mode decomposition(VMD)technique was proposed to decompose the wind power preprocessing of a single wind farm into intrinsic modefunction...
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Number of views:1324 Amount of downloads:1481
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LI Jiangcheng,CHEN Xiaohua,LI Haitao,ZHU Zhixu
Abstract: Because the current method does not optimize the control parameters of flexible AC transmissiondevice,resulting in unsatisfactory control results,control delay and loss rise,a flexible AC transmission devicecontrol method based on multi-objective optimization was proposed. The basic working principle of fl...
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Number of views:1945 Amount of downloads:1480
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TIAN Kai,YU Zhibin,YUAN Yuan,CHU Zilin,SUN Chuanjie,YANG Jingran
Abstract: A fine dead-time compensation method based on the medium voltage three-level IGCT outputfiltering topology was proposed to realize the real-time calculation and compensation of the dead-time effect of theinverter output. Based on the topology of the output filter,the transfer function was established,and t...
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Number of views:2890 Amount of downloads:1480
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HE Hengjing,ZHOU Shangli,ZHANG Bensong,XIE Wenwang,LIAN Xinkai,XU Haotian
Abstract: In order to apply the non-instrusive load montiring technology into the new generation of smartmeter,a kind of method based on the BP neural networks enhancement algorithm of clustering for loadidentification was presented. In this method,each feature was relatived to the corresponding cluster based on the...
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Number of views:2478 Amount of downloads:1478