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SONG Hui,YUAN Longxiang
Abstract: Aiming at the problem of single hot spot temperature under average state and long response timeunder different load states,in order to improve the response speed,a 10 kV transformer load state detection method based on K-means algorithm was designed. The 10 kV transformer load model was established,the ove...
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Number of views:2737 Amount of downloads:8926
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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:2736 Amount of downloads:10234
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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:2735 Amount of downloads:14356
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LÜ Zhengyu
Abstract:The power transmission and transformation system is an important link of power transmission. Inorder to reduce the cost of operation and maintenance and improve the recognition effect,an application method of automatic identification and control of transmission and transformation vulnerable lines was propos...
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Number of views:2731 Amount of downloads:7919
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YANG Guotao,HU Dongfang,ZHANG Jiaming,WEN Liqiang,TIAN Lisi
Abstract:Space vector pulse width modulation(SVPWM)strategy is one of the key technologies for threelevelinverters. However,conventional three-level SVPWM often experiences neutral point potential(NPP)oscillation and high switching loss when addressing the neutral point potential balancing issue. To tackle thischall...
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Number of views:2728 Amount of downloads:12460
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PENG Daogang,GAO Yimin,QI Erjiang,ZHOU Yang,WANG Yongkun
Abstract: Oil spills from thermal power plants can pollute the drainage outlet,if not dealt with in time,it willalso pollute the river environment. Drainage outlet monitoring is from the angle of depression,therefore it is hard to identify accurately with the rectangular detection frame. Based on the image from the ...
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Number of views:2721 Amount of downloads:7918
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MIAO Haidong,ZHANG Qing,YAN Yong,ZHANG Lina,HUO Tingting,HAN Linjie
Abstract:In order to eliminate the problem of low inertia and large frequency fluctuation in wind power gridconnected system when power disturbance occurs,an improved virtual inertia control strategy was proposed. Acooperative control strategy of adaptive moment of inertia and damping coefficient was introduced in t...
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Number of views:2719 Amount of downloads:8862
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GAO Chong,PAN Xianxian,XU Zhiheng,ZHANG Junxiao,HUANG Ye,DENG Wenyang
Abstract: The effective evaluation of microgrid is an important reference for the planning,construction andoperation of microgrid. The comprehensive evaluation index system of microgrid planning was constructed step bystep from three aspects of composition structure evaluation,technical evaluation and benefit evalua...
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Number of views:2715 Amount of downloads:9327
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SU Qili,LIU Jiayi,RUAN Peng,ZHANG Liuli,ZHAO Yayi,XIAO Qian
Abstract:With the large-scale access of a high proportion of new energy,the frequency and voltage stabilityof the distribution network has significantly decreased. Therefore,an optimal configuration method for energystorage in the distribution network considering the improvement of frequency-voltage stability was pr...
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Number of views:2708 Amount of downloads:14405
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GUO Yanhui,LI Hao,LUO Min,CHEN Jie
Abstract:In power electronic devices,the supporting capacitor is a crucial component. To ensure the safety ofthe system,monitoring the status of the capacitor is particularly important. A neural network approach wasemployed,and analyzing the correlation between control strategies and circuit topology parameters to d...
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Number of views:2707 Amount of downloads:13332
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QU Chenming,GUO Kunli,BAI Yang,LI Hang,ZHU Tinghua,MA Peng
Abstract:Considering the influence of grid voltage background harmonics in weak current networks,reverseharmonic peaks appear in the grid-connected current under weighted average current control(WACC),making itimpossible for the system to achieve zero pole cancellation and thus affecting the stability of the grid-co...
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Number of views:2707 Amount of downloads:10743
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CHEN Kun,SUN Kaiyuan,LIN Lin,WANG Meng,ZHENG Jiehui,LI Zhigang
Abstract: With the massive access of renewable energy sources and pluralistic load,it is bi-directionalbeneficial to update the distribution network topology. It can not only promote the consumption of renewableenergy and the satisfaction of new load demands,but also improve the rationality of urban distribution net...
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Number of views:2707 Amount of downloads:9689
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CAI Xinlei,WANG Qin,CHEN Yefu,MENG Zijie,SONG Dongkuo
Abstract:The high proportion of renewable energy system is an inevitable choice to achieve the dual carbontarget,but the uncertainty of wind and solar output will cause serious wind and light abandonment. With thedeepening reform of the electricity market,the demand-side response has also attracted much attention. I...
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Number of views:2702 Amount of downloads:9213
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LIU Juan,LEI Hui,LÜ Jin,WANG Yang,Xu Deshu
Abstract:The state of charge(SOC)of batteries is one of the most important parameters in lithium-ionbattery management technology,and high-precision SOC estimation is beneficial for the grid connection andcontrol of energy storage stations. Battery charge and discharge data are not only time-series in nature,but als...
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Number of views:2699 Amount of downloads:8236
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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:2692 Amount of downloads:6239