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LI Liping,SHAO Pengcheng
Abstract: It is difficult to track and control the vibration of inspection robot because of its flexible operationspace. In order to ensure the high efficiency and accuracy of the inspection robot,the position and posture servocontrol strategy based on finite difference method was proposed. The dynamic model of posi...
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Number of views:1911 Amount of downloads:4120
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LI Fei,YU Kongli,XIE Youlin,YIN Xiaoping,LIU Wei
Abstract:Insulated gate bipolar transistor(IGBT)as an important part of wind power converter,through thehigh frequency switch to achieve efficient conversion of electrical energy,its long-term complex operation will leadto IGBT performance decline,increase the risk of failure and affect the stability of the system. ...
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Number of views:555 Amount of downloads:4013
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QIU Chen
Abstract:Aiming at the deterioration of position control performance in the position servo system ofpermanent magnet synchronous motor(PMSM)due to internal and external disturbances such as load torquevariation,an optimal position control method was proposed with anti-disturbance capability on the basis of activedis...
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Number of views:531 Amount of downloads:3999
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WANG Yufei,WANG Bo,JIANG Xiuhong
Abstract:Brushless DC motor has the advantages of high reliability and high efficiency,but due to its ownstructural characteristics and driving characteristics,it will produce large torque pulsation during operation. In lightof this operation problem,an improved direct torque control strategy for brushless DC motor ...
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Number of views:742 Amount of downloads:3828
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CHENG Shi,ZHAO Lu,CHI Yuhang,LUO Yuang,YIKESHA Halimulati
Abstract:The technological core of the automatic train operation(ATO)for urban trains lies in the highprecision control of traction motors,which requires online identification and correction of the motor closed-loop parameters. In order to satisfy the high-precision requirement that the ATO operation and stopping ac...
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Number of views:667 Amount of downloads:3709
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LI Jun,WU Xichun,YU Haorui,XIANG Chenguang,LI Haifeng
Abstract:Aiming at the scarcity of real label data caused by equipment occlusion in the construction ofsubstation 3D map,a 3D map construction method was proposed based on semi-supervised deep closest point(SEMI-DCP). Firstly,the iterative closest point algorithm was used to generate pseudo-labels for the registered...
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Number of views:492 Amount of downloads:3257
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HE Chengzeng,LIU Qi,XU Longbin,SHAO Yuzhou,GENG Yiwen
Abstract:Permanent magnet synchronous linear motor(PMSLM)suffers from load disturbances,frictionalforces between the guide rail and the rotor,tooth slot effects,and positioning force disturbances caused by endeffects during operation. To address these issues,a kind of PMSLM control strategy was proposed for continuo...
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Number of views:616 Amount of downloads:3153
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WANG Jin,GE Qiongxuan,ZHAO Lu,ZENG Dihui
Abstract:The combined propulsion,levitation,and guidance superconducting electrodynamic suspensionmaglev train is capable of achieving electromagnetic forces generated by ground coils,which is of significantimportance for reducing construction costs and shortening development cycles. A mathematical model of themagle...
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Number of views:284 Amount of downloads:3046
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JIA Pengfei,MENG Zhaohe,ZHANG Zhonglei,FANG Chenghui,LIU Xiaodong
Abstract:With the rapid development of technology,the increase in chip frequency has become a significanttrend that cannot be ignored in the industry. The increase in chip frequency directly drives the gradual increase indata throughput of chip communication interfaces. In the field of transmission equipment,the com...
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Number of views:387 Amount of downloads:3008
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ZHANG Linghao,LU Xiaoxing,XIAO Xiaolong,YUE Fuchang,WU Fan,LI Guangxi
Abstract:The inherent characteristics of distributed energy resources(DERs),including their small scale,volatility,and intermittency,pose significant challenges to the design of operational strategies for distribution areamicrogrids. Despite the successful integration of diverse DERs and external power grids within ...
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Number of views:726 Amount of downloads:2958
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CHEN Baixu,LI Xiaohua,CAI Zexiang,HU Ming,LIANG Xuran,YANG Bin
Abstract:As the new power system evolves towards a high proportion of renewable energy access andmultiple interactions,edge computing,as the core technology to support the intelligent upgrade of power system,is facing severe challenges of large-scale equipment access and complexity of power business. Aiming at the p...
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Number of views:385 Amount of downloads:2836
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FENG Yuzhe,SHENG Long,LUO Tongling,WANG Xin
Abstract:The inter-turn short circuit fault and thermal imbalance fault of the generator rotor winding will bothcause a positive correlation phenomenon between rotor vibration and excitation current. In order to improve theefficiency and accuracy of fault diagnosis,the research was conducted on the characteristics o...
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Number of views:366 Amount of downloads:2790
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SUN Xiangfei,LI Ping,DA Guangjun,DOU Xiaochang
Abstract:Due to the large rotational inertia of synchronous machines,frequency changes caused by faults areminimal. In contrast,new energy systems have smaller rotational inertia,which can result in more significantfrequency variations during faults. These larger frequency fluctuations inevitably lead to changes in ...
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Number of views:36 Amount of downloads:76
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LI Li,PANG Shengyang,ZHONG Ronghao,HUANG Qingdan,ZHANG Liping,ZHANG Yachao
Abstract:With the increase in electricity demand,the rising maintenance costs of substation projects have putpower grid companies under huge market pressure. Traditional cost methods cannot meet the needs of modernmarkets,so the construction of intelligent cost calculation models is the key to realize the modernizat...
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Number of views:34 Amount of downloads:73
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DING Jinjin,PENG Bo,ZHANG Feng,MAO Xun
Abstract:To address the large inrush current during the switching of a virtual synchronous generator(VSG)from off-grid to grid-connected,and the stability issues of traditional pre-synchronization schemes,a controlmethod for the phase-locked loop(PLL)pre-synchronization unit to be cut off in non-grid-connected time ...
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Number of views:37 Amount of downloads:70