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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:1325 Amount of downloads:1325
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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:1269 Amount of downloads:1526
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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:1969 Amount of downloads:1676
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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:1888 Amount of downloads:1605
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LU Xihao,QIAO Mingzhong,ZHANG Chi
Abstract: In view of the electromagnetic vibration and noise analysis of permanent magnet motor with Halbachstructure at rated power,the analytical expression of radial force wave of permanent magnet motor was established,and two kinds of main force waves which cause vibration and noise were analyzed. The main noise...
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Number of views:1894 Amount of downloads:1637
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LI Bingran,FU Hongquan,CHEN Xi
Abstract: Aiming at robust control of six-phase copper rotor induction motors(SpCRIM)under uncertaindisturbances,a new backstepping control strategy based on advanced ant colony optimized(AACO)recursiveRomanovski polynomial neural network(RRoPNN)was proposed. Based on the theory of backstepping controltheory,the con...
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Number of views:1819 Amount of downloads:1627
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ZHA Haitao,XU Kexin,LI Xiaowen,LIU Bin
Abstract: Active power filter(APF)is one of the main ways to eliminate harmonic quality problems in powergrid,and LCL filter is commonly used to connect APF to power grid. In order to suppress the resonance problemcaused by LCL filter,active damping based on capacitor current feedback is a common method. Active damp...
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Number of views:1907 Amount of downloads:1673
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DONG Yi,ZHOU Yufei,LIU Shuai,WANG Yingying
Abstract: The coupling coefficient of the loosely coupled transformer in the inductively coupled wirelesspower transmission(ICPT)system is a key parameter affecting the conversion efficiency of the wireless energytransmission system. To improve the coupling coefficient,an equivalent magnetic circuit model was establ...
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Number of views:1875 Amount of downloads:1674
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TIAN Kai,LI Fengsheng,CHU Zilin,YU Zhibin,LI Teng,WANG Mingyue
Abstract: Aiming at the short circuit fault protection of medium voltage three-level converter with IGCT asthe core and the monitoring of changes in main circuit device parameters during operation,a method was proposed to simultaneously realize fault identification of IGCT three-level converter and monitoring of mai...
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Number of views:1879 Amount of downloads:2429
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WANG Junlong,QIAN Xujun,LI Yongxiang,WANG Shouchang
Abstract: It is well known that the power system operation process will appear to require explicit justprediction difficulties and other problems,the power system operation reliability prediction model based oncontinuous collaborative machine learning algorithm was constructed.First,the continuous collaborative mach...
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Number of views:1515 Amount of downloads:1520
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ZHANG Kuangyi,LIU Haitao,MA Bingtai,ZHANG Chengyu
Abstract: There are many fault distributions along the actual distribution network lines,but the existingvoltage sag stochastic assessment methods only consider the uniform fault distribution. According to the differentfault distribution characteristics along the line,a stochastic assessment method of voltage sag wa...
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Number of views:1518 Amount of downloads:1515
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MENG Chao,WANG Lianzhi,XIE Min,FU Yichao
Abstract: As the existing system fails to evaluate the process of pushing the power grid dispatch controlinstructions,the push delay and energy loss increase. A feature selection-based automatic push system for power grid dispatch control commands was proposed.According to the characteristics of power grid dispatch ...
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Number of views:1494 Amount of downloads:1421
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HE Wei,ZHAO Weizhe,RAO Zhen,LI Jia,SHAN Wenliang
Abstract: Along with the promotion of carbon neutrality and clean heating in countryside areas,operationalflexibility plays a more important role in electric power systems. Following this trend,a novel method was proposedfor evaluating the flexibility of biogas driven combined heat and power(CHP)considering the ther...
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Number of views:1461 Amount of downloads:1520
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YANG Yanfang,LIANG Zhonghao,ZHANG Meiling,LIU Jiayi
Abstract: Aiming at the problem of low accuracy and comprehensiveness of current identification methods,amethod of reverse power anomaly identification in digital electric energy meter information sampling was proposed.Through the data acquisition system,the digital electric energy meter information sampling work was...
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Number of views:1486 Amount of downloads:1516
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ZHANG He,CAO Tianbi,LI Xianyun
Abstract: In view of the complex transient characteristics of short-circuit faults in DC power network and thedifficulty of fault identification,the short-circuit faults in DC power network can be identified by detecting the change of capacitance voltage through the analysis of the VSC topology and switch characteri...
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Number of views:1678 Amount of downloads:1398