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GONG Xuanlin,WANG Junyan
Abstract: In view of the problem that the commutation error of brushless DC motor is difficult to accuratelymeasure during variable speed operation,the relationship between the integral of line voltage difference and themotor rotation angle was analyzed,and it was proved that the integral value of the line voltage d...
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Number of views:2786 Amount of downloads:4850
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HU Changbin,MA Tengfei,MA Jianli,XU Zheng
Abstract: Distributed power generation technology is an important part of modern smart microgrid,in whichthree-port isolated DC converter plays an important role. Because the storage battery system can realize the flowand storage of energy,so the combination of three-port isolated DC converter and photovoltaic power...
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Number of views:2448 Amount of downloads:5955
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LI Jianjie,GAI Pengyu,WANG Lihua,ZHANG Jian,SUN Hongbo,XIN Chunqing
Abstract: In order to improve the optimal allocation of renewable energy in microgrid and reduce theuncertainty of source load in microgrid,a multi-objective coordinated scheduling optimization method for microgrid based on Pearson correlation coefficient meta-learning(PCC-ML)source load prediction was proposed. Fir...
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Number of views:2428 Amount of downloads:7772
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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:2308 Amount of downloads:6803
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LI Zhen,ZHAO Pengxiang,WANG Nan,CONG Lin,WANG Huiyuan,CAO Yan
Abstract: Exploring the flexibility of the heat and electricity coupling integrated energy system(HEC-IES),reducing system operation costs and promoting renewable energy consumption are hot issues in the field of energyinternet. Thus,a day-ahead optimal scheduling method of the HEC-IES considering the thermal dynami...
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Number of views:2564 Amount of downloads:6416
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MA Bingtai,LIU Haitao,HAO Sipeng,LU heng,ZHANG Chengyu
Abstract: In photovoltaic and hybrid energy storage system,variational mode decomposition(VMD)iscommonly used to realize the distribution of system residual power,but the number of decomposed modes andsecondary penalty factor value affect the error of power reconstruction directly,and the inertia weight error ofcomm...
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Number of views:2690 Amount of downloads:7163
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ZHAO Jingjing,CHEN Linghan
Abstract: The penetration rate of renewable energy in the island AC microgrid was relatively high,and itssystem inertia was relatively low. The primary frequency regulation during island operation mainly relies onequipment such as diesel engines and energy storage. Using the fast adjustment characteristics of energy...
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Number of views:2902 Amount of downloads:7180
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JIAO Yingxue,HUANG Xuejin
Abstract: The problem of secondary frequency recovery and active power distribution for AC microgrid(MG)with bounded time delay were studied. A distributed dynamic event triggering control method was proposedfor distributed generator sets. The method used dynamic event triggering mechanism,which could greatly reduce...
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Number of views:2528 Amount of downloads:6553
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GU Jipeng,SHAO Liang,LU Chuiji,ZHANG Youbing,ZHANG Weijie,YANG Jifeng
Abstract: As an important basis of power system operation planning,short-term power load forecasting isgreat significant to the safe and economic operation of power system. A long-term and short-term time seriesnetwork(LSTNet)model was proposed to predict the short-term load variation of distribution area. The model...
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Number of views:2494 Amount of downloads:6042
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WU Xiangyu,XUN Chao,XIAO Fen,LIN Keyao,LIN Chaoqun,CHEN Bojian
Abstract: Existing long-term electricity consumption prediction methods are difficult to solve the problem ofvariable selection,which leads to inaccurate prediction results of power consumption. Therefore,combining theradio frequency variable selection in random forest(RF)algorithm with long short-term memory(LSTM)r...
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Number of views:2552 Amount of downloads:6433
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ZHANG Zihua,LI Yan,XU Tianqi,WANG Yangguang,DENG Xiaoliang
Abstract: In order to improve the prediction accuracy of wind power in new wind farms effectively,theinfluencing factors between relevant wind farms were considered. A variational mode decomposition(VMD)technique was proposed to decompose the wind power preprocessing of a single wind farm into intrinsic modefunction...
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Number of views:2535 Amount of downloads:6635
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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:2220 Amount of downloads:5977
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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:2195 Amount of downloads:5642
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WANG Shixin,YU Bo,YUAN Yong,SI Guolei,DAI Jin,CAO Taiqiang
Abstract: Electric valve regulation requires fast response speed,high precision control,no overshoot andstrong anti-interference performance. An active disturbance rejection algorithm based on feedforward compensation was used to control the brushless DC motor(BLDC),and the position error was taken as the input of t...
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Number of views:2830 Amount of downloads:5610
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LI Peiying,XIA Jiakuan,WAN Chengchao
Abstract: In view of the mechanical vibration of the manipulator joint servo system due to the existence offlexible links such as harmonic reducer and toothed belt,a mathematical model considering the change of stiffnesscoefficient and large reduction ratio was established,the mechanism of mechanical resonance was a...
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Number of views:2547 Amount of downloads:5745