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CHEN Chen,DONG Pingxian,SONG Xiaofan,GUO Fang,QI Huanruo,DU Xiaotong
Abstract:After the distributed wind farm stations are integrated into the distribution network,due to thecharacteristics of wind farm short-circuit current amplitude control and frequency offset,the traditional three-stagecurrent protection of distribution network is difficult to accurately identify the fault on the...
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Number of views:991 Amount of downloads:1898
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CHEN Biao,HAN Zhongxiu,MA Liqiang,ZHANG Renhe
Abstract:The back-to-back active neutral-point-clamped(ANPC)converter,as the core component of theunified power flow controller of the distribution network,is widely used for the flexible closed-loop operation.However,the ANPC converter has more switching devices and commutation paths,which significantly increasesth...
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Number of views:990 Amount of downloads:2390
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LEI Aoyu ,LI Jun ,MEI Yong ,TONG Ning ,WANG Yu ,WU Wei
Abstract:The stability analysis of power system transient voltage,power angle,and frequency is often basedon short-time-scale electromechanical transient simulation,which requires a relatively accurate large-scalesimulation model,which not only has low simulation efficiency but also takes a long time,thus giving ris...
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Number of views:990 Amount of downloads:2118
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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:987 Amount of downloads:3018
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PAN Pengcheng,ZHU Taojie,XIE Peigong
Abstract:To address the challenges of fuzzy carbon emission accounting boundaries and the limited diversityin the utilization of hydrogen energy within large-scale new energy hydrogen production systems,a low-carboneconomic scheduling model for an integrated energy system encompassing electro-thermal-hydrogen energy...
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Number of views:979 Amount of downloads:2551
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GENG Likai,HOU Juan,ZHANG Chunxiang,HU Wenying,LI Wenhua,LI Cuijuan
Abstract:Thermal and magnetic protection circuit breakers provided short circuit protection by instantaneoustripping devices. In the magnetic field formed by the coil with current,the moving armature and stationary coreovercomed the spring force and engage under the influence of electromagnetic force,thereby pushing...
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Number of views:979 Amount of downloads:1618
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TIAN Zhidan,YU Xiang,WAN Haibo
Abstract:In order to solve the problems of high subjective misjudgment rate and low efficiency in manualhand touch and auscultation methods for acoustic quality detection of micro motors,while taking into account theaccuracy of detection results and the fast construction of detection models,a small sample machine le...
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Number of views:978 Amount of downloads:1778
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WU Yihao,ZHAO Shiwei,ZHOU Jie,XIAO Chaoren
Abstract:In order to solve the problem of large peak-to-peak inductor currents in dual active bridge converterswith mismatched input and output voltages,a four-degree-of-freedom modulation(FDFM)strategy was proposedby combining symmetric duty cycle modulation and asymmetric duty cycle modulation. By analyzing the op...
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Number of views:974 Amount of downloads:2647
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ZHOU Wei,JI Yuan,JIA Ting,GU Xihua,QIN Yi,BI Sibo
Abstract:In order to ensure the security of embedded-based distributed photovoltaic system data,a lightweight encryption algorithm was proposed on the basis of 128-bit advanced encryption standard(AES)for the problem of limited embedded computing resources. Firstly,the AES round function was optimized to reduce the n...
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Number of views:973 Amount of downloads:1627
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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:972 Amount of downloads:3616
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DI Ya,ZHANG Jinhua,QIAN Yang
Abstract:In DC power grid,when serious metallic short circuit fault occurs in the DC side line of voltagesource converter(VSC),the fault current has the characteristics of a fast rising speed and a large peak. The DCcircuit breaker is used to isolate the fault,which greatly increases the requirements for the quick a...
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Number of views:971 Amount of downloads:1938
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WANG Xuli,XU Jiayin,SHEN Yuming,LI Kun,FENG Peiru,JIANG Guifen
Abstract:In order to make full use of the frequency modulation capability of the wind turbines,consideringthat a conventional wind-power coordinated frequency control strategy not only results in some fluctuations in thefrequency of the system,but also requires high energy storage capacity and poor economic efficien...
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Number of views:969 Amount of downloads:2569
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CHEN Yong,LI Jianbiao,CHEN Jianfu,PEI Xingyu,WU Hongyuan,HUANG Chunyu
Abstract:The characteristics of the DC side of the DC distribution network are multi bus cascades,multipleconverters,and strong coupling of the buses,which can easily cause harmonic resonance and threaten the safeoperation of system equipment.Aims at the problem of unclear resonance interaction and harmonic transmis...
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Number of views:966 Amount of downloads:1866
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FAN Yuanliang,ZHU Junwei,WU Han,HAN Xiaolan,HUANG Xinghua,CHEN Jinyu
Abstract:Accurately estimating the state of health(SOH)of lithium-ion batteries is crucial for optimizingenergy storage systems' operation,management,and maintenance. Existing methods that extract health featuresfrom single-stage charging data fail to exploit battery aging information fully,leading to a suboptim...
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Number of views:963 Amount of downloads:2381
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KAN Chaohao,YAO Xiaojian,QI Ankang,WANG Zhisheng, WANG Pengcheng,CHEN Gong
Abstract:Three-phase asynchronous motor is one of the most frequently used motors. Inter-turn short circuitfault is a kind of fault with high probability. If the real-time monitoring of motor operation,health and safetyevaluation of the operation,will be able to timely stop losses,reduce losses. An inter-turn fault ...
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Number of views:962 Amount of downloads:1791