Electric drive and its control
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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:4237 Amount of downloads:6931
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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:4045 Amount of downloads:5584
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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:4126 Amount of downloads:5766
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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:3770 Amount of downloads:5313
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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:9157 Amount of downloads:19800
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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:4668 Amount of downloads:7276
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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:4475 Amount of downloads:7125
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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:4325 Amount of downloads:6702
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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:4221 Amount of downloads:7283
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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:4961 Amount of downloads:6379
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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:4721 Amount of downloads:6556
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TANG Taonan,WANG Jian
Abstract: Aiming at the fault-tolerant operation problem of induction motor driving system with sensorfailures,a smooth fault-tolerant control strategy combining indirect field-oriented control(IFOC),direct torquecontrol(DTC)and V/f control was proposed. The indirect field-oriented controller and the direct torque c...
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Number of views:4729 Amount of downloads:7836
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SHEN Gaobo,LIU Xu
Abstract: A variable flux reluctance machine(VFRM)control system based on the excitation current controlof a single leg was proposed. Compared with the VFRM control system based on the H-bridge which controlling theexcitation current,fewer switch devices were used,in which the cost of the inverter was reduced while ...
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Number of views:4994 Amount of downloads:6269
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HE Wendan, LI Xiaohua, ZHAO Rongjian, FENG Anhui
Abstract: The main vibration of interior permanent magnet synchronous motor(IPMSM)with integer slot multipole pair for electric vehicles is the vibration at 0-order and 2p-order natural frequencies, which are generally believed to be caused by the spatial electromagnetic force waves of 0-order and 2p-order. In order...
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Number of views:9320 Amount of downloads:18922
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LIN Bin,SHAO Haoshu,WANG Xiaohe,LI Hongke,CAI Xu
Abstract: With the increasing scale of wind farms,large scale wind farm is gradually shifting from onshorewind farm to offshore wind farm,squirrel cage induction generator(SCIG),which is the main type of offshore wind farm,has become the main research object of offshore wind farm dynamic characteristics. In order to...
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Number of views:4402 Amount of downloads:6104