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WU Ning,CAI Jie,LIANG Gonghao
Abstract: As an important part of smart grid monitoring system,the security of power wide area measurementsystem is very important. Therefore,in order to ensure the integrity and confidentiality of communication data inpower wide area measurement system and the communication security between terminal devices in the ...
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Number of views:958 Amount of downloads:680
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ZHU Ye,CHEN Yuanrui,CHEN Yang,WANG Zhenlin
Abstract:The safe and efficient operation of lithium batteries depends on accurate state of charge(SOC)estimation. However,the traditional battery model and SOC estimation have poor robustness and reliability undernoise interference. Aiming at the problem of SOC cooperative estimation under noise interference,firstl...
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Number of views:804 Amount of downloads:679
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KE Ting,TIAN Songlin,ZHOU Hai
Abstract:In order to solve the problem of low accuracy of small substation fault diagnosis,a small substationfault diagnosis model based on cooperative game and cloud model was proposed. By analyzing the characteristicsand causes of faults,the diagnosis index system was established. Entropy method and expert weighti...
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Number of views:537 Amount of downloads:678
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HU Junhua,WEI Huabing,FUYinfang,QIAOMin,GAO Baolong
Abstract: The safety monitoring of existing ultra-high voltage direct current(UHVDC)converter stationsmostly adopts manual on-site detection,which presents major safety hazards and high labor costs. In order to meetthe safety needs of the power transmission system,a multi-angle joint monitoring system was designed f...
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Number of views:652 Amount of downloads:677
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TANG Junyi,DING Biwei,YANG Qi
Abstract: The integration of high proportion of wind power intensifies the uncertainty of power systemoperation. The sufficient flexibility is vital for the safe and reliable operation of the power system. An evaluationmethod of power system flexibility considering wind power prediction interval was proposed. First,...
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Number of views:845 Amount of downloads:675
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LUO Ranjie,LI Qian,GAO Jing,FENG Chongwen,MAMengyuan,GUO Peijian
Abstract:The development status of electric drive systems in the industrial sector and their significance inpromoting green and low-carbon transformation were studied. As a crucial control and energy-saving equipment inthe industrial sector,electric drive systems face numerous challenges posed by unchecked developme...
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Number of views:738 Amount of downloads:672
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LÜ Jin,XU Li,SUI Dawei,GAO Qixin,XU Deshu
Abstract: With the rapid development of China's industrial economy,the demand for strip materials isincreasing,and the construction of strip production lines both domestically and internationally is growing year byyear. However,the complexity of large-scale rolling mill systems and the harsh working environment ...
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Number of views:663 Amount of downloads:671
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HUANG Xinbing,DENG Xinglong,LIU Xiaojuan
Abstract: Aiming at the problems of low production efficiency,poor consistency of appearance and high laborintensity in the manual way of packaging tin box sleeve film for bagging drinks and tea,a kind of automaticequipment for multi-tin box supporting sleeve film was proposed,which integrated application of program...
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Number of views:624 Amount of downloads:669
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ZHAO Hao,LU Jinke,ZHU Yidi,ZHOU Ziniu,DU Weixi
Abstract:Junction-case thermal resistance has always been a highly concerned thermal parameter of powersemiconductor devices,which is also the standard to weight the heat sink performance of power semiconductordevices. Heat-sink design should be considered in order to prevent device overheating damage. Therefore,acc...
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Number of views:928 Amount of downloads:667
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ZHOU Jinwei,DING Dawei,JIANG Xuexiang,REN Zhaoting,LI Xizhi
Abstract:Maximum torque per ampere(MTPA)control can effectively improve system efficiency throughreducing copper loss,which is suitable for air conditioning permanent magnet compressor system. However,due to the inverter non-ideal characteristics,the tracking accuracy of the optimal current vector angle decreases. T...
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Number of views:934 Amount of downloads:667
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HUANG Feng,CUI Zhimei,HUANG Zhidu,JIANG Shengchao,FENG Bo
Abstract: In order to evaluate the safety status of transmission lines scientifically and objectively,a safetyanalysis model of transmission lines based on support vector machine-back propagation(SVM-BP)hybrid networkwas proposed. Firstly,the weather data,transmission line standard documents and defect data were pro...
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Number of views:753 Amount of downloads:665
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SONG Weiqiong,GUO Shuai,HAN Liu,XU Chaoqun,SONG Wei,LÜ Fengming
Abstract:In order to monitor current distribution state of parallel silicon carbide(SiC)devices in photovoltaicinverter,a contactless monitoring solution based on anisotropic magnetoresistive sensor was proposed. Accordingto practical position of SiC devices on PCB board,multiphysics simulation tool COMSOL was emplo...
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Number of views:1155 Amount of downloads:662
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YIN Zhenhuan
Abstract:Due to the advantages of faster dynamic performance and smaller torque ripple,high frequencypulse voltage injection(PSVI)is widely used in sensorless control of permanent magnet synchronous motor(PMSM)at low-speed range. Under low switching frequency,the dynamic and steady performance of thetraditional high...
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Number of views:622 Amount of downloads:659
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CHEN Weikang,WANG Haixin,ZHANG Zhiyong,CHEN Zhenyu,SHEN Jie
Abstract:Flux-weakening control technology can effectively broaden the speed range of the permanentmagnet synchronous machine(PMSM),therefore,it is of great significance to the research on the flux-weakening control of permanent magnet synchronous machine. Most of flux-weakening modified the flux-weakening current c...
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Number of views:726 Amount of downloads:656
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LI Shengnan,HE Tingyi,HE Xin,HE Peng,ZHANG Yongchang,ZHANG Shengan
Abstract:During the joint operation of permanent magnet direct drive wind power generation systems,thechanges in motor side parameters may cause problems such as reduce control accuracy and stability on the machineside,which in turn affects the DC bus voltage of the converter,leading to power fluctuations on the gri...
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Number of views:607 Amount of downloads:656