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LIANG Biao,ZHANG Yiming,ZHANG Dong,LI Gen,WANG Xuhong
Abstract: With the increasing demand for geological exploration in complicated terrain in China,thedevelopment of helicopter transient electromagnetic system(HTEM)has been paid more and more attention. A pulse current transmitting circuit with multi-excitation sources was proposed to meet the demand of transmitting ...
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Number of views:2439 Amount of downloads:1678
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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:2697 Amount of downloads:1678
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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:2560 Amount of downloads:1677
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WANG Haozhu,XIE Qin,DENG Fangming,YANG Yang
Abstract: The growing demand for new energy electric vehicles(EVs)has further boosted the demand forelectric car charging. However,the gap between operating companies results in that the information of charging piles cannot be fully and effectively presented to the demanding public.Aiming at the above problems,a new...
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Number of views:2650 Amount of downloads:1677
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WANG Shixin,YU Bo,YUAN Yong,SI Guolei,DAI Jin,CAO Taiqiang
Abstract: Electric valve regulation requires fast response speed,high precision control,no overshoot andstrong anti-interference performance. An active disturbance rejection algorithm based on feedforward compensation was used to control the brushless DC motor(BLDC),and the position error was taken as the input of t...
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Number of views:1969 Amount of downloads:1676
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YAN Chengshan,QIU Mingquan,ZHANG Lijun,GUO Qi,WANG Chunlei,JIN Wenxing
Abstract: A voltage stability control strategy for DC microgrid based on muti-group energy storage unitdynamatic regulation was proposed. Due to the volatility of the new energy,and in order to improve the powersupply reliability of the energy storage system,the multi-group energy storage equipped with a certain con...
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Number of views:1879 Amount of downloads:1675
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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:2430 Amount of downloads:1673
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ZHA Haitao,XU Kexin,LI Xiaowen,LIU Bin
Abstract: Active power filter(APF)is one of the main ways to eliminate harmonic quality problems in powergrid,and LCL filter is commonly used to connect APF to power grid. In order to suppress the resonance problemcaused by LCL filter,active damping based on capacitor current feedback is a common method. Active damp...
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Number of views:1905 Amount of downloads:1668
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DONG Yi,ZHOU Yufei,LIU Shuai,WANG Yingying
Abstract: The coupling coefficient of the loosely coupled transformer in the inductively coupled wirelesspower transmission(ICPT)system is a key parameter affecting the conversion efficiency of the wireless energytransmission system. To improve the coupling coefficient,an equivalent magnetic circuit model was establ...
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Number of views:1874 Amount of downloads:1667
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TIAN Guangping,XUE Hua
Abstract: In response to the stable operation demand of modular multilevel converter(MMC)with singlephaseshort circuit fault,a passivity-based method based on dual-port controlled Hamiltonian with dissipation(Dual-PCHD)model was proposed. To make the grid-connected positive sequence and negative sequence currentsubs...
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Number of views:2591 Amount of downloads:1667
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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:1417 Amount of downloads:1665
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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:1361 Amount of downloads:1662
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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:2986 Amount of downloads:1662
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DAI Yanwen,YU Aiqing
Abstract: In order to improve the reliability of microgrid operation and renewable energy power absorbability,a capacity optimization allocation method of energy storage system based on improved nondominated sortinggenetic algorithm Ⅲ( NSGA-Ⅲ )was proposed. Firstly ,a two-layer optimization model of energy storageco...
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Number of views:2815 Amount of downloads:1662
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ZHOU Jie,ZHAO Shiwei,WU Yihao,YANG Xiangyu
Abstract:In order to optimize the current stress of dual active bridge(DAB)converter,an improved dualphase shift(IDPS)modulation was proposed based on the traditional dual phase shift(DPS)modulation. Firstly,the working principle of IDPS modulation was introduced,its steady-state working characteristics were analyze...
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Number of views:1537 Amount of downloads:1659