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DENG Guimei,ZHANG Yue,HE Yongpeng,ZHAO Haixu,YU Hongze
Abstract:In order to study the operating characteristics of onboard power net of high-speed maglev train,anautomated networking test system based on LabVIEW was developed on the basis of several independent onboardpower net test systems. Through the comprehensive simulation of the external power supply of the train,...
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Number of views:1256 Amount of downloads:4015
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LI Mingke,ZHONG Jinxing,XUE Yan,XIONG Xiaosheng,LIU Junwei,DENG Lina
Abstract: In order to effectively manage the grid short-circuit current overrun problem,optimization decisionmaking evaluation method of short-circuit current limitation scheme based on hybrid decision model considering asymmetric closeness was designed. Considering the relevant influence of the short-circuit curren...
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Number of views:1781 Amount of downloads:4009
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XIAO Quan,ZHOU Xiaoshan,WANG Ruiqing,LIU Yuqi,ZHAO Xianyuan
Abstract: The excitation control module of synchronous generator is the key equipment for power productionand safe operation,and the localization rate of its key materials is low. Based on the control performance of thesynchronous generator excitation control module,starting from the research of chip independent con...
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Number of views:2030 Amount of downloads:4007
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SHI Xuelei
Abstract:Under the power grid dispatch mode of "source follows load",different AC power supply modes arerequired in the market. To meet market demand,an uninterruptible power supply(UPS)system compatible withvarious AC power supply modes was designed. The modes of the system were selected by switching devices.Accord...
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Number of views:1757 Amount of downloads:3998
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LÜ Jin,XU Li,SUI Dawei,GAO Qixin,XU Deshu
Abstract: With the rapid development of China's industrial economy,the demand for strip materials isincreasing,and the construction of strip production lines both domestically and internationally is growing year byyear. However,the complexity of large-scale rolling mill systems and the harsh working environment ...
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Number of views:1560 Amount of downloads:3995
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YANG Ming, ZHANG Ruhao, ZHANG Jun,ZHU Haotian,SUN Yongping, CHEN Yangyang, XU Dianguo
Abstract: SCARA robot is especially suitable for assembly work because of its high speed, high precision and mechanism characteristics, so it is widely used in 3C, food and drug, automobile industry and other production processes, such as assembling circuit boards and components. First, the trajectory planning, incl...
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Number of views:6471 Amount of downloads:3987
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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:1834 Amount of downloads:3981
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LIU Lingshun,LI Yongheng,YAN Hongguang
Abstract: A nine-switch converter space vector pulse width modulation(SVPWM)algorithm was proposedbased on the dual Y shift 30° permanent magnet synchronous motor(PMSM)voltage vector. Compared with thebiggest four vectors of the twelve-switch converter SVPWM algorithm,the proposed algorithm not only reducesthree swi...
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Number of views:1757 Amount of downloads:3977
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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:1241 Amount of downloads:3972
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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:1429 Amount of downloads:3965
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DENG Yaping,JIA Hao,ZHANG Xiaohui,TONG Xiangqian,WANG Lu
Abstract:The accurate recognition of power quality disturbance(PQD)is one of the main problems to besolved after PQD occurrence,which is of great importance for responsibility dividing and power market reformprocess accelerating. Massive quantities of power quality monitoring data prepare the ground for the recognit...
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Number of views:1639 Amount of downloads:3963
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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:2374 Amount of downloads:3954
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TIAN Bin,SUN Quanhui
Abstract: AC/DC switching power supply is the main source of electrical system,its development trend islarge capacity,high power density,high efficiency,low power factor and low harmonic content. However,there are still some common problems with existing digital power supplies,including poor anti-interference abilit...
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Number of views:1709 Amount of downloads:3933
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QU Bo,LI Xin,XIANG Xingyao,ZHANG Ping,WANG Dan
Abstract:A microgrid optimization scheduling model considering dynamic network reconstruction wasproposed for the parallel and off grid scheduling problem of microgrids. The proposed model was based on Bendersdecomposition and decomposes the optimal scheduling problem of microgrids into a grid-connected operationmas...
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Number of views:1324 Amount of downloads:3919
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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:2308 Amount of downloads:3918