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FANG Qiang,CHENG Zhijiang,YANG Handi
Abstract: For the problem of uneven power output and unbalanced state of charge(SOC)of energy storageunits caused by large-scale integration of distributed generation systems(DGS),such as photovoltaic and windturbine,into the grid,an improved consistency algorithm based on gradient compensation was proposed based on...
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Number of views:768 Amount of downloads:569
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LIU Kai,LI Gang,WANG Xin
Abstract: According to the 90 s regular breaking and 15 s emergency breaking requirement for 60 MW axialcompressor used in some large scientific facility,a control strategy of electric hybrid breaking in the convertor wasdesigned. The hybrid braking control strategy was analyzed and calculated,and the optimal brakin...
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Number of views:656 Amount of downloads:566
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KONG Lingqing,HE Shan,DONG Xinsheng,LI Ji,YANG Dingqian,HU Shuai
Abstract: In order to solve the problem of voltage and frequency fluctuations at the grid-connected point of thepermanent magnet wind turbine during high and low voltage ride-through,a virtual synchronous generator(VSG)was proposed to control the grid-side converter to improve the inertia and damping of the permanen...
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Number of views:757 Amount of downloads:565
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LU Guijun,JIA Pengfei,WANG Yubo,LIU Jing,YU Shouquan
Abstract: Permanent magnet synchronous motors play an important role in industrial automation,automotive,aerospace,household appliances,and other fields due to their high efficiency,high power density,good torque performance,and ease of control. However,in the field of electrical transmission,it is not onlynecessary...
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Number of views:879 Amount of downloads:564
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ZOU Jia,ZHANG Jianqiao,JI Chengchun
Abstract: Aiming at the problem that the accuracy of the speed estimation of the traditional model referenceadaptive system(MRAS)method without speed sensor decreases after the speed load mutation in the low speedrange,a speed identification method based on the combination of back propagation(BP)double-layer artific...
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Number of views:696 Amount of downloads:564
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ZHOU Qun,XIA Haogang,CAI Xiyu,LIN Dong,YAN Tiesheng
Abstract:The amplitudes of strong pull-in current and hold-on current passing through the high speedsolenoid valve were regulated accurately by using hysteresis control to realize pulse width modulation of thevoltage of fast solenoid valve,the duty cycle of the current pulse passing through the high speed solenoid v...
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Number of views:629 Amount of downloads:559
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JIANG Zhaoping,LIYue,LIUMingkai,ZHEN Dongfang,HOU Xinxu,WANGTong
Abstract: In order to ensure the efficient and stable operation of high-temperature submersible motors,and totimely avoid motor failures caused by high operating temperatures,which may affect production,it is necessary toobtain their underground temperature without temperature sensors. Based on this situation,a temp...
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Number of views:499 Amount of downloads:559
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WU Ning,CAI Jie,LIANG Gonghao
Abstract: As an important part of smart grid monitoring system,the security of power wide area measurementsystem is very important. Therefore,in order to ensure the integrity and confidentiality of communication data inpower wide area measurement system and the communication security between terminal devices in the ...
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Number of views:770 Amount of downloads:557
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TONG Xin,SONG Guobing,ZHANG Zhihua,WANG Junfeng,LEI Zhirong
Abstract: Due to the change of the ground parameters of the distribution network after the single-phasegrounding fault,the traditional active arc suppression method based on the ground parameters in the normaloperation state has a deviation between the compensation current reference value and the actual value. Incons...
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Number of views:655 Amount of downloads:557
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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:743 Amount of downloads:557
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YUAN Minxin,YIN Zhonggang,LUO Peien,ZHANG Yanqing
Abstract: To address the problem of the long detection time of the current detection method during the opencircuit fault diagnosis of inverter insulated gate bipolar transistor(IGBT)of the permanent magnet synchronousmotor(PMSM)drive system,an error current polarity method based on model predictive current control(M...
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Number of views:762 Amount of downloads:556
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ZHU Ye,CHEN Yuanrui,CHEN Yang,WANG Zhenlin
Abstract:The safe and efficient operation of lithium batteries depends on accurate state of charge(SOC)estimation. However,the traditional battery model and SOC estimation have poor robustness and reliability undernoise interference. Aiming at the problem of SOC cooperative estimation under noise interference,firstl...
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Number of views:691 Amount of downloads:552
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JIA Pengfei,HE Yongpeng,YANG Jianxin,ZHANG Qing,WU Wenda
Abstract:Industrial communication technology is an effective way to achieve network control of industrialequipment. With the development of Ethernet technology in recent years,a top layer application technology basedon Ethernet,PROFINET has rapidly developed. However,due to the lack of high-speed network interfaces ...
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Number of views:729 Amount of downloads:552
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TANG Junyi,DING Biwei,YANG Qi
Abstract: The integration of high proportion of wind power intensifies the uncertainty of power systemoperation. The sufficient flexibility is vital for the safe and reliable operation of the power system. An evaluationmethod of power system flexibility considering wind power prediction interval was proposed. First,...
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Number of views:693 Amount of downloads:552
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HUANG Xinbing,DENG Xinglong,LIU Xiaojuan
Abstract: Aiming at the problems of low production efficiency,poor consistency of appearance and high laborintensity in the manual way of packaging tin box sleeve film for bagging drinks and tea,a kind of automaticequipment for multi-tin box supporting sleeve film was proposed,which integrated application of program...
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Number of views:519 Amount of downloads:549