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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:1076 Amount of downloads:1006
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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:1240 Amount of downloads:928
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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:1092 Amount of downloads:938
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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:1786 Amount of downloads:1497
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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:1834 Amount of downloads:1268
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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:1830 Amount of downloads:1203
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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:1800 Amount of downloads:1224
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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:1757 Amount of downloads:1287
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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:1732 Amount of downloads:1407
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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:1732 Amount of downloads:1193
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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:1496 Amount of downloads:1006
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SUN Guangming,ZHNAG Weiguo,ZHOU Jing,LIU Hongpeng
Abstract: The integration of electric boiler and thermal storage system into power system is a feasible schemeto improve system flexibility and wind power consumption. In order to comprehensively consider the multi-agentconfiguration of electric boilers and heat storage systems in different thermal power plants,and ...
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Number of views:1439 Amount of downloads:986
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WANG Chengliang,PAN Zhixin,ZHAI Xuefeng,XIAO Yuhua,LIU Yu
Abstract: The mathematical model of magnetic coupled resonant wireless power transfer(MCR-WPT)system based on LCC-S compensation topology was established. Meanwhile,the influence on the transmissionperformance of the system was analyzed from three aspects:operating frequency,compensating inductance andload impedance...
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Number of views:1455 Amount of downloads:1141
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LI Linwei,FU Zhimin,CHEN Mingfan,HE Lipeng,QIN Dan,HUANG Lige,CHENG Xi
Abstract: With the opening of the electricity market,the scattered and high idle rate of distributed energystorage has realistic conditions to participate in the aggregation and reuse,and the aggregation process caneffectively improve the efficiency of the power grid. The electric vehicles were taken as a typical re...
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Number of views:1467 Amount of downloads:1141
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SUN Kaiwen,GONG Shihua,CAI Junqiong
Abstract: Gantry is an important part of proton radiotherapy equipment. Its main features are its large mass,large size and large moment of inertia. It is necessary to ensure the smooth acceleration and deceleration and precise positioning of the gantry. In response to the positioning control requirements of the gan...
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Number of views:1459 Amount of downloads:1021