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DU Jifei,WANG Yang,WANG Li,LIU Haoruo,MU Yunfei,SUN Qiang
Abstract:The primary side feedback can stabilize the output voltage,and improve the service life of theequipment without using the secondary winding detection error signal. The topology of active filter and theimproved method of primary side feedback were adopted. The performance of active EMI filter topologies wasa...
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Number of views:1894 Amount of downloads:6407
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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:1891 Amount of downloads:9875
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CUI Yulu,ZHANG Zhiguo,YANG Gang,GAO Yipeng,ZHAO Jiantao
Abstract:In response to the "double carbon" strategy,the state has made great efforts to develop new energy.As an important carrier of distributed new energy,the DC building microgrid system has attracted extensiveattention. In the DC building microgrid system,as the core link of voltage and power conversion,DC conv...
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Number of views:1890 Amount of downloads:7372
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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:1890 Amount of downloads:6071
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PENG Yinzhang,WANG Chen,NAN Dongliang,XIAO Chao,YANG Shuai
Abstract:AC-DC hybrid power grid can balance the power flow during the operation of the power system ina large range,which is conducive to improving the access capacity and access range of large-scale access of newenergy to the power grid,which is an important trend in the development of modern power grid. In order ...
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Number of views:1889 Amount of downloads:5473
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ZHANG Bin,LI Guoqing,LIU Dagui,SHI Wei,XIAO Guilian
Abstract:Reliability assessment of distribution systems is a crucial foundation for maintaining their powersupply continuity. For existing distribution network photovoltaic systems,solar irradiance modeling was limited toits exponential autocorrelation. To enhance the reliability assessment through accurate predicti...
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Number of views:1888 Amount of downloads:9786
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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:1888 Amount of downloads:6644
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LI Jiayu,HAN Yuan,WANG Jianjun,PAN Yue
Abstract:Modular multilevel matrix converter(M3C)is a multilevel topology that can directly realize ACACconversion,which has good application prospects in high-voltage transmission systems and DC distributionsystems,but the existence of bridge-arm circulating channels inside the M3C leads to a very complex controlst...
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Number of views:1886 Amount of downloads:5757
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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:1886 Amount of downloads:5259
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ZHANG Boyu,ZHANG Xiaoli,FENG Rui,ZHANG Zhaobo,CAI Siqi ,MA Xiaoxuan
Abstract:Based on the principle of magnetic coupling resonance technology,a bilateral LCC topologycompensation network parameter design method was adopted. Firstly,the mathematical model of the main circuitof the bilateral LCC topology was analyzed,and the inductance ratio of the coil self-inductance and the seriesc...
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Number of views:1885 Amount of downloads:5972
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YANG Zhaohui,WEI Huadong,HE Liuqing,ZHANG Hao,PENG Guoping,SHI Ben
Abstract:Aiming at the problem of large switching loss of modular multilevel converter(MMC),startingfrom the switching frequency optimization strategy,the existing switching frequency optimization strategy wasimproved,and the accurate analytical formula of sub-module capacitor voltage based on the real-time value of...
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Number of views:1884 Amount of downloads:5949
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YAN Yingshi,QIU Dongyuan
Abstract:Aiming at the interconnections requirements of power frequency(PF),low frequency(LF)anddirect current(DC)brought by the offshore wind power,a hybrid multi-frequency converter was designed basedon the nine-bridge-arm modular multilevel converter(9A-MMC),in which the diode-clamp sub-module wasselected for upp...
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Number of views:1881 Amount of downloads:9187
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DING Chaohui,YAO Fei,JANG Jun,GAO Ang,SHAO Gao
Abstract:The traditional predictive current control for three-phase LCL grid connected inverters has theproblems of large steady-state ripple and unstable switching frequency,which is not conducive to the quality of grid connected current and the design of filters. Therefore,an improved three vector fixed frequency ...
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Number of views:1881 Amount of downloads:6654
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WU Han,HUANG Xinghua,QIAO Zhendong,FAN Yuanliang,ZHU Junwei,CHEN Jinyu
Abstract:Accurately estimating the state of health(SOH)of lithium-ion batteries is a crucial prerequisite forensuring the safe and stable operation of energy storage systems. The key to improving the accuracy of SOHestimation lies in the rational selection of health characteristics that can effectively reflect the s...
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Number of views:1877 Amount of downloads:6893
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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:1877 Amount of downloads:6370