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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:1743 Amount of downloads:1444
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ZHANG Wanying,WANG Changjiang,YU Dayang
Abstract: Due to the strong coupling between rotor speed and rotor time constant in the indirect vector controlsystem of induction motor,it is difficult to realize their parallel identification. The parallel identification based onmulti-innovation extended Kalman filter based on forgetting factor(FMI-EKF)was propose...
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Number of views:1698 Amount of downloads:1105
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LI Junjun,LI Zhongqi,YI Jiliang
Abstract: Shared inverter can simplify the topology of the dual machines drive system under the traditional axiscontrol mode,reduce the volume and weight of the equipment. In view of the low voltage utilization rate of a single motor in the shared inverter drive system,which leads to the shortening of the constant p...
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Number of views:1786 Amount of downloads:1117
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ZHANG Fangyuan,JING Yun,WANG Dan
Abstract: A vector control method based on the modified super-twisting observer and non-singular terminalsliding mode was proposed for stand-alone doubly-fed wind power generation systems under unbalanced loads. The fundamental frequency and double frequency components of the rotor current were observed by the modif...
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Number of views:4921 Amount of downloads:3613
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ZHANG Cheng,HAN Cun,REN Wei,ZHAO Jinlei,ZHANG Xiao,ZHANG Xudong
Abstract: Based on the AC-DC-AC variable frequency speed control system of synchronous motor,theparameters of PI regulator were optimized by chaos particle swarm optimization algorithm. A pseudo-randomsequence generation method was constructed using a chaotic map dynamic integer tent map,and an objective function of...
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Number of views:2552 Amount of downloads:1544
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LIU Siyan
Abstract: In order to realize the speed estimation and speed regulation of the permanent magnet synchronousmotor(PMSM)controller,a new type of fractional-order model reference adaptive speed observer was designed.Compared with integer-order observers,this strategy enhanced the adjustable degrees of freedom of the co...
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Number of views:2544 Amount of downloads:1347
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DING Qiang,JIANG Yingxu,NI Tuocheng
Abstract: Firstly,the radial force mathematical model of central winding bearingless slice permanent magnetmotors was built. Subsequently,parameters tuning theory of displacement loop PID controller for bearingless motor suspension system was studied,and its inherent drawbacks of PID controller when used for bearing...
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Number of views:2486 Amount of downloads:1309
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GAO Ruiteng,WANG Shuhong,WU Hao,LI Jiabin,CAO Jianwen,WU Pan,ZHANG Ailing
Abstract: A no-load grid-connected voltage phase control method of the brushless doubly-fed inductiongenerator(BDFIG)based on the control winding flux was proposed,the control system structure block diagram was constructed according to the mathematical model and control strategy of BDFIG. The hardware circuit of the...
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Number of views:2370 Amount of downloads:1136
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YANG Chengshun,LIU Guofu,DAI Yuchen,ZHANG Dongdong,HUANG Xiaoning
Abstract: An adaptive cooperative control strategy based on improved virtual synchronous machine(VSM)technology was used to improve the traction power supply system of urban rail transit. Firstly,the improved VSMwas used as an one-time control to make the urban rail trains have the external characteristics of synchr...
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Number of views:5502 Amount of downloads:3635
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ZHANG Yubo,LIU Xu,CAO Yang
Abstract: The hybrid excited segmental rotor flux switching permanent magnet(HESRFSPM)machine basedon eccentric pole was proposed. Under the condition of constant air gap area,the segmental rotor structure based on eccentric pole can reduce 2,4,10 radial air gap flux density space harmonic amplitudes by comparing ai...
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Number of views:3108 Amount of downloads:1533
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ZHANG Yexin,DENG Yunchuan,LIU Zhigang,ZHANG Yuting,CHEN Tao,HUANG Ke
Abstract: When the high-speed electric multiple units(EMUs)pass through the long downslope route,speedlimit is required to meet the safety of train operation,the regenerative braking energy generated in this process isreturned to the traction network and may threaten the safety of power supply. At present,there are ...
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Number of views:2977 Amount of downloads:1391
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LI Yanlei,ZHANG Xiaoyang,LI Xiaoling,LIU Wei,WANG Gang,ZHOU Gaowei
Abstract: Because traditional methods have problems such as poor control stability and low control efficiencyin the process of using unmanned aerial vehicle(UAV)to check obstacles in transmission channels,a transmissionchannel unmanned aerial vehicle motor auto-disturbance rejection control technology based on extre...
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Number of views:2907 Amount of downloads:1356
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CAI Chunchen,MAO Xuefei,ZHAO Lei,CHEN Zhen,LI Zhen
Abstract: Aiming at the problems that the working efficiency of ultrasonic motor is too low,which limits theworking endurance of the system and affects the resonant and dynamic characteristics of the motor,a speed andefficiency optimization bivariate control method under dynamic conditions was designed. First,the tw...
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Number of views:2847 Amount of downloads:1338
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LU Yibing,LI Feng,ZHAO Wenbin,LU Wu,HUO Simin
Abstract: A power angle control method for DC system with doubly-fed induction generator based on air gapflux vector regulation was presented,which could reveal the relationship between the air gap EMF vector angle andthe stator output power,and could be used to directly control the stator output power. In the propos...
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Number of views:3232 Amount of downloads:1601
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GAO Yujie,ZHANG Chengrui,DING Xinzhong,LI Huxiu,CHEN Pan
Abstract: In the galvanometer scanner system,the motor should meet the requirement of 2°/200 Hz highfrequency response. It was inappropriate to utilize PID controller under the demands of small-inertia,lowamplitude,high-frequency. Therefore,many control algorithms are studied and applied,such as currentmultisampling...
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Number of views:3215 Amount of downloads:1372