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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:371 Amount of downloads:357
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XU Deshu,LIU Yanfang,ZHAO Hao,MA Zhiqiang
Abstract:The integrated energy system contains adjustable resources and flexible operating modes,which to acertain extent play a supporting role in the power grid and assist in optimizing its operation. Based on this,anoptimal operation model of integrated energy system considering support capacity to power grid was...
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Number of views:371 Amount of downloads:426
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ZHAO Chencong,XIE Zhouhua,ZHOU Feihang
Abstract:Unbalanced grid voltage will affect the normal grid connection operation of the wind energyconversion system(WECS),resulting in fluctuations in system output power and distortion of output current. Inaddition,in the actual permanent magnet synchronous wind power system,there may be uncertainties in thenetwo...
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Number of views:369 Amount of downloads:628
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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:366 Amount of downloads:350
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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:365 Amount of downloads:494
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LIU Yawei,GUAN Peng,SUN Lunan,WANG Chunhui,WANG Hao
Abstract:The micro-grid solves the problem that the intermittent and fluctuating power generation hasadverse effects on the stable operation of the distribution network when the distributed generation is connected tothe distribution network. In order to meet the economic operation of micro-grid under grid connected ...
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Number of views:357 Amount of downloads:275
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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:350 Amount of downloads:396
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WANG Qi,DONG Xinsheng,HE Shan
Abstract:To address the issue of transient overvoltage at the sending end of the wind farm caused by faults inconventional high-voltage direct current systems system,the impact mechanism of DC faults on transient voltagechanges at the sending end was analyzed. It was discovered that the reactive power surplus of the...
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Number of views:345 Amount of downloads:293
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MIAO Yuntao,WANG Chengxian,LI Junda,GU Jiateng,ZHANG Zhenbin
Abstract:Model predictive control(MPC)is an effective control strategy for permanent magnet synchronousgenerators(PMSG)due to its fast dynamic response and multi-objective optimization capabilities. However,MPCrelies on accurate system models and sensor measurements. In practical conditions,parameter mismatch caused...
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Number of views:344 Amount of downloads:334
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LI Shunxin,ZHAO Xuan,ZHAO Yinan,YANG Min,DONG Shaoqiao
Abstract:With the continuous increase in the scale of distribution network construction and operation,a largenumber of electricity load control problems have emerged,especially the weakening of sample time seriescharacteristics in electricity load data analysis,resulting in incomplete acquisition of local load chara...
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Number of views:343 Amount of downloads:354
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SHU Jun,YE Fan,YAO Fenglin
Abstract:The power cable plays a very important role in today's social development and urban operation.With the increase of people's electricity consumption,the amount of cable laying is also increasing synchronously.In order to prevent the cable from being damaged,the environmental vibration signals around ...
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Number of views:342 Amount of downloads:288
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ZHANG Wei
Abstract:The multi-source monitoring data of switchgear contains rich equipment operating statusinformation,and analyzing it can achieve switchgear fault diagnosis. A fault diagnosis method for switchgear basedon SMOTE-SSA-CNN was proposed. Firstly,based on monitoring data such as switchgear voltage,current,andtempe...
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Number of views:340 Amount of downloads:536
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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:339 Amount of downloads:341
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HAN Shaohua,MAO Wangqing,GE Xuan,XU Lei,CHEN Ken,LIANG Rui
Abstract:Compared with large photovoltaic systems with isolation transformers,distributed photovoltaicsystems have small power and volume. In order to improve efficiency,non-insulated inverters are often used indesign,but photovoltaic leakage current endangering system safety is also generated. Taking the single-pha...
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Number of views:330 Amount of downloads:323
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MA Junchao,WANG Chenxu,SUN Dan,PENG Yan,ZHANG Zeyu,YANG Ying
Abstract:In response to the potential frequency secondary drop problem of direct-drive wind power systemsin the scenario of continuous frequency drop faults in the power grid,the principle of primary frequency regulationof direct-drive wind power systems was analyzed. A primary frequency regulation control strategy ...
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Number of views:326 Amount of downloads:321