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BAI Luwei,DONG Yongle,ZHANG Lifang,MAO Yongmei,YIN Chao,XI Jia
Abstract:Security is a critical concern that must be addressed in the context of the electric power meteringinternet of things(IoT). In order to achieve complete isolation between data stored in the public cloud(externalnetwork)and data stored in the private cloud(internal network),while enabling unidirectional comm...
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Number of views:1973 Amount of downloads:6879
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LIAO Zhijun,HUANG Liying,CAO Yun,TIAN Junling,RONG Na
Abstract:In the context of dual carbon,carbon trading mechanism and various energy complementary powergeneration mechanism are important mechanisms for China to achieve carbon emission reduction goals andsustainable development. A multi-energy system optimization model was proposed that takes into account carbontrad...
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Number of views:1971 Amount of downloads:4912
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SUN Yueyue,LI Mengda,PEI Guangyao,ZHU Hanghang,NING Han
Abstract:Since the compressed air energy storage system grid-connected inverter voltage is always influencedby voltage fluctuations of the power grid with little problem,for the sake of ameliorating the dynamic and stableperformance of the DC bus voltage of the inverter on the side of the grid and the actual output ...
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Number of views:1969 Amount of downloads:7065
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TIAN Bin,SUN Quanhui
Abstract: AC/DC switching power supply is the main source of electrical system,its development trend islarge capacity,high power density,high efficiency,low power factor and low harmonic content. However,there are still some common problems with existing digital power supplies,including poor anti-interference abilit...
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Number of views:1967 Amount of downloads:5548
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LI Ning,WANG Ruyue,ZHU Longhui
Abstract:In order to analyze the power quality problem of actual power network under the influence ofuncertain interference factors,a power quality detection and recognition method combining empirical wavelettransform(EWT)and improved S-transform was proposed. On the one hand,the frequency,amplitude and timeparamete...
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Number of views:1966 Amount of downloads:5716
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YU Shengcan,YU Tao,FENG Miaoyong
Abstract:Accurately and quickly identifying the fault types of traction transformers is a key technology forintelligent operation and maintenance. Aiming at the problems of single model deviation in the current traditionalalgorithm and the constraints between the iteration rate of complex models and the deployment o...
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Number of views:1965 Amount of downloads:5733
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LIU Xianyi,SHI Xinghao,JIANG Yikang,PAN Xiumin,QU Le,HUANG Feng
Abstract:Aiming at the problem of low recognition accuracy of electricity stealing behavior,an electricitystealing behavior recognition model based on joint neural network was proposed. Firstly,the acquired userelectricity consumption data was processed,and the user electricity consumption data was two-dimensionally...
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Number of views:1963 Amount of downloads:6503
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ZHANG Chunxiang,LI Xin,SUN Ning
Abstract:DC high current comprehensive characteristic test device is used to detect the released characteristicsof DC low-voltage electrical overcurrent protection electrical device,which is used in low-voltage electricalindustry for DC products for long time delay,short time delay,instantaneous tripping test and sh...
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Number of views:1959 Amount of downloads:6067
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HUANG Guanglei,TIAN Qidong,LIN Zhixian,ZHENG Weinan,XU Te,LI Bingran
Abstract:Due to the extensive addition of new energy systems,the number and types of power qualitydisturbances in the system are also increased accordingly. However,the traditional power quality disturbance(PQD)classification method has the problem of low accuracy and efficiency,and it is difficult to adapt to theex...
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Number of views:1954 Amount of downloads:6021
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DONG Yue,HE Yingfei,DU Lulu,TANG Mingjie,JIN Guangchao,ZHAO Jing
Abstract:Modular multi-level matrix converter(M3C)is a kind of new topology which can convert onespecified electric frequency to another directly,it is applicable to high voltage and large capacity scene. In thefractional transmission system,the complete flow was introduced to achieve power frequency grid fault ride...
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Number of views:1953 Amount of downloads:7000
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SUN Chuanjie,TIAN Kai,XU Wenyuan,LU Beibei,LI Nan
Abstract:A brake unit based on IGCT was designed for different applications of frequency converter inindustrial scenes,especially the medium voltage frequency conversion system without feedback function. IGCTwas used as the main power device,and the parameters and characteristics of IGCT was analyzed. According to t...
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Number of views:1951 Amount of downloads:7642
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SU Le,CHENG Jing,WANG Weiqing
Abstract: In recent years,the broadband oscillation of power system caused by new energy grid-connectedoccurs frequently. As an important part of new energy,photovoltaic power station can't be ignored. In order toexplore the broadband oscillation of photovoltaic grid-connected,a detailed linear mathematical mode...
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Number of views:1951 Amount of downloads:7143
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SHANG Liqun,WANG Shuo
Abstract:As the proportion of installed photovoltaic(PV)capacity increases year by year,accurate predictionof PV output and the realization of group control and management of PV clusters become crucial. A multi-site PVoutput prediction method that integrates deep fusion of graph convolutional neural network(GCN),lon...
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Number of views:1950 Amount of downloads:8134
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YANG Xiaochu,WANG Guanwen,LUO Guogan,XU Shipeng,ZHANG Dingwang
Abstract: The composition of the double-fed induction generator(DFIG)is complex,and its operation andmaintenance are difficult. Due to the relatively complex electromagnetic transient characteristics of the fault,theextraction quality directly affects the reliability of the fault detection results of the DFIG. Aimin...
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Number of views:1950 Amount of downloads:6121
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SUN Mengen,GONG Haiming,ZHAO Jie,SUN Rongrong,LU Huiwen,WANG Hui
Abstract:Accurate topology and line parameter information is the basis of state estimation and securitycontrol of distribution network. Affected by the performance of collection terminals and environmental factors,themeasurement error of metering equipment often deviates from Gaussian distribution. Higher requiremen...
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Number of views:1948 Amount of downloads:7177