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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:1076 Amount of downloads:863
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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:1072 Amount of downloads:934
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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:1050 Amount of downloads:841
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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:998 Amount of downloads:910
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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:1029 Amount of downloads:968
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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:1184 Amount of downloads:890
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LAI Yongbo,LU Jun,LI Huarong
Abstract: To deal with the mould quantitative casting over-pouring and spillage,based on the analysis of thetechnological process and the control characteristics for a kind of auto molten bucket casting mechanism,under the condition without depending on system concrete models,a three stages casting was proposed to r...
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Number of views:1040 Amount of downloads:901
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WANG Wenguang,QIU Shuming,BAI Yang,GAO Pengcheng,YU Shipeng
Abstract: Taking the steel rolling system improvement as an example,the design of 12-pulse parallel electriccontrol system of SIEMENS SINAMICS DCM 6RA80 in the steel rolling system was described in detail,as well asthe calculation and selection of main components,such as rectifier transformer,rectifier device and sm...
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Number of views:1744 Amount of downloads:1445
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LI Lingxin,JIAO Yuping,SUN Jiacheng,DENG Fujin,ZHANG Qi,REN Biying
Abstract: High voltage converter is often used in high voltage direct current(HVDC)transmission system tocontrol power supply nearby at high potential. However,the high bus voltage and its wide range fluctuation in themodule pose a challenge to the high reliability design of power supply. To solve this problem,a hig...
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Number of views:1777 Amount of downloads:1226
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TANG Weifeng,WANG Changjiang
Abstract: In the motor controller of new energy vehicles,due to insufficient current capacity,high cost,andlimited heat dissipation capacity,parallel power devices are often used to extend current capability of power inverter for EV applications. Current imbalance can be caused by device parameter tolerances,parasit...
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Number of views:1771 Amount of downloads:1159
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TONG Zhan' anxin,SU Jianhui,ZHANG Jian,DU Yan
Abstract: The requirements for wireless charging of automated guided vehicle(AGV)batteries are low voltageand high current,full-wave-synchronous-rectification(FWSR)can improve efficiency and reduce costs. Firstly,AGV wireless charging topology and working principle were introduced in detail. Secondly,aiming at the p...
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Number of views:1743 Amount of downloads:1193
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CHEN Guoping,WANG Juan,LIANG Zhen,ZHANG Zhiyu,BAI Haibin,SUN Qianhao
Abstract: The full fault-blocking converter(FFBC)-based DC power distribution network is an importantdirection of the power system with source-load-storage interaction. Since there is no DC breaker in FFBC-DCpower distribution network,the start-up,mode switching and fault handling control strategies of FFBC-DC power...
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Number of views:1709 Amount of downloads:1249
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LÜ Feichun,HU Jingtao,ZHANG Wentao,HU Dong,WU Xu
Abstract: In recent years,the large-scale grid connected operation of distributed energy has led to the gradualevolution of traditional power users from simple power consumers to prosumers with both power production andconsumption capacity,and can orderly participate in market transactions under the guidance of mark...
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Number of views:1674 Amount of downloads:1356
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LU Heng,LIU Haitao,XIA Tao,ZHANG Chengyu,HUANG Cheng
Abstract:Accurate line parameters are of great significance to the operation and control of the distributionnetwork. However,the line parameters of distribution network are affected by environment,working condition and temperature,etc. At the same time,due to the increasing complexity,randomness and volatility of di...
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Number of views:1681 Amount of downloads:1159
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YAN Chengshan,QIU Mingquan,ZHANG Lijun,GUO Qi,WANG Chunlei,JIN Wenxing
Abstract: A voltage stability control strategy for DC microgrid based on muti-group energy storage unitdynamatic regulation was proposed. Due to the volatility of the new energy,and in order to improve the powersupply reliability of the energy storage system,the multi-group energy storage equipped with a certain con...
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Number of views:1444 Amount of downloads:964