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WANG Jin,GE Qiongxuan,ZHAO Lu,ZENG Dihui
Abstract:The combined propulsion,levitation,and guidance superconducting electrodynamic suspensionmaglev train is capable of achieving electromagnetic forces generated by ground coils,which is of significantimportance for reducing construction costs and shortening development cycles. A mathematical model of themagle...
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Number of views:149 Amount of downloads:1730
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FENG Yuzhe,SHENG Long,LUO Tongling,WANG Xin
Abstract:The inter-turn short circuit fault and thermal imbalance fault of the generator rotor winding will bothcause a positive correlation phenomenon between rotor vibration and excitation current. In order to improve theefficiency and accuracy of fault diagnosis,the research was conducted on the characteristics o...
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Number of views:217 Amount of downloads:1577
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JIA Pengfei,MENG Zhaohe,ZHANG Zhonglei,FANG Chenghui,LIU Xiaodong
Abstract:With the rapid development of technology,the increase in chip frequency has become a significanttrend that cannot be ignored in the industry. The increase in chip frequency directly drives the gradual increase indata throughput of chip communication interfaces. In the field of transmission equipment,the com...
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Number of views:224 Amount of downloads:1695
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HE Long,MA Jincai,ZHU Yongming
Abstract:The contact electrical contact fault of gas insulated switchgear(GIS)will affect its electricalperformance. A multi-physics coupling model of GIS contact vibration was first established to address the difficultyin diagnosing contact faults. An experimental platform for high-current detection of GIS was buil...
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Number of views:1017 Amount of downloads:8153
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WU Zuoping,WANG Hongyan,ZHANG Qianfu,XIE Qing
Abstract:Electricity theft by users is the main cause of non-technical loss of electric energy in power grids,which causes huge economic losses and resource wastage to the power system. Compared with a large number ofusers' normal electricity samples,electricity theft users belong to a minority class of samples,...
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Number of views:2641 Amount of downloads:10135
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LIU Xin,WEI Lixin,ZHANG Feng
Abstract:In addressing the issue of the electrical drive system of oil drilling rigs encountering instability inactuator output due to interference from multi-source random noise,a novel approach was proposed. The Fractaltheory was utilized to isolate random noise in the drilling rig electrical control system. The p...
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Number of views:1886 Amount of downloads:9854
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HU Junze,YANG Genghuang,GENG Liqing,LIU Xinyu
Abstract:To address the issues of low accuracy and precision in transformer fault diagnosis,a transformerfault diagnosis method based on an improved particle swarm optimization-long short-term memory(IPSO-LSTM)network was proposed,integrating data feature selection and an improved particle swarm optimization algorit...
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Number of views:1648 Amount of downloads:9699
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ZHONG Jie ,YAN Xiaoxia,HU Hua,WANG Zhao,ZHU Bingxu
Abstract:The electrified railways system is a complex system of traction power supply system and traincoupling. In order to ensure the safe operation of trains under complex working conditions,it is necessary toidentify the disturbance of the vehicle-network coupling system in a timely and accurate manner. To solve ...
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Number of views:2704 Amount of downloads:11932
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ZHANG Jie,CHEN Qiang,LUO Yuanfeng,QIN Jiming,WEI Juren,WU Beixing
Abstract:Power cable is an important carrier of power transmission. To solve the problems of low accuracyand large computation in voicing diagnosis with traditional convolutional neural network model,a novel cable faultdiagnosis method based on multiple voicing features and lightweight convolutional neural network w...
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Number of views:1833 Amount of downloads:10978
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DANG Yihan,XU Chuanfang,WANG Shaozu
Abstract:Usually,the DC side of the traction rectifier requires a series LC resonant circuit to filter out thepulsating component of 2 times the grid frequency. When the resonant inductor on the DC side had a short-circuitfault,the pulsating component would be transferred to the motor side,the problems such as torque...
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Number of views:2513 Amount of downloads:10578
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PEI Zhiqiang
Abstract:Aiming at the traditional mine hoist rocker arm bearing fault diagnosis technology which usuallyonly utilizes a certain specific geometric structure of the vibration dataset and fails to obtain the optimal similaritygraph structure,an intelligent diagnosis method for bearing faults based on adaptive graph e...
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Number of views:2307 Amount of downloads:11395
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SHEN Zhangliang,CHEN Yini,LI Haomin,LIU Zihao,MA Hongzhong,GE Xuanhao
Abstract:A fault diagnosis model for isolation switches based on Markov transition field(MTF),catch fishoptimization algorithm(CFOA)improved pyramid vision transformer(PVT)was proposed to address theproblems of complex fault situations,strong noise in signal extraction,and insufficient feature extraction. Firstly,th...
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Number of views:2518 Amount of downloads:9713
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CHI Yuhang,ZHAO Lu,GE Qiongxuan,LIU Xue,CHENG Shi
Abstract:Taking the switch tube open-circuit fault of dual bridge series resonant DC-DC converter(DBSRC)as the research object. Firstly,the basic working principle of DBSRC was summarized,and the open circuit faultcharacteristics of DBSRC converter were introduced. On this basis,the fault characteristics that can be...
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Number of views:1939 Amount of downloads:8833
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QIAO Chunlin,JIN Chuxiong,CHEN Dong,LIU Jianming
Abstract:In response to the potential local electric field distortion and insulation weaknesses that may occurunder high-voltage operating conditions in 35 kV European cable connectors,a 35 kV European cable connectorsstructural design method based on adaptive geometric optimization was proposed. The method integrat...
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Number of views:2740 Amount of downloads:11687
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JI Liang,XU Jun,GUAN Ya,CUI Jingxia,HE Jie,PAN Yihang
Abstract:The three-core underground cable in the distribution network works in a harsh environment. Due tothe influence of aging,external force,high temperature and humidity,the insulation of long-term live operation iseasily damaged and causes faults. Aiming at the single-phase grounding fault of cable in distribut...
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Number of views:2164 Amount of downloads:7948