Electric drive and its control
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WU Zhiheng，LIU Aimin
Abstract: The motor actuator used in circuit breaker has the advantages of simple structure，small dispersal ofaction and strong controllability，which provides the possibility for the switch contact of circuit breaker to followthe preset reference curve. The traditional control method can not adjust the parameters ac...
更多Number of views：684 Amount of downloads：501
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LI Weiye，GONG Yifan，XU Wei，LUO Yinglu，HE Mingjie
Abstract: As a new type of compressor，linear compressor has the advantages of high efficiency，smallvolume，low noise and little vibration. However，in order to give full play to its advantages of high efficiency，it isnecessary to control the driving frequency to track its mechanical resonance frequency. According to t...
更多Number of views：725 Amount of downloads：465
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JING Qi，WANG Changkai，XU Fengxia，YU Liqi
Abstract: In high-precision applications，the control accuracy of the servo system is extremely high required.The control precision of the servo system depends largely on the precision of the feedback measurement. Positionand speed feedback accuracy can be improved by increasing the absolute accuracy of the encoder，a...
更多Number of views：709 Amount of downloads：465
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CAI Weiliang，CHENG Haifeng，PAN Zhixuan，CHENG Jin，DAI Mingli
Abstract: The grid connection of doubly-fed induction generator（DFIG）leads to the reduction of systemequivalent inertia and primary frequency regulation capacity. With the increase of DFIG grid connection scale，theproblem of system frequency regulation becomes more and more serious. In view of this problem，frequency...
更多Number of views：692 Amount of downloads：765
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LIU Hao，WEI Lixin，YOU Lichun
Abstract: Due to the particularity of its application，offshore drilling rig has higher requirements for thestability and control accuracy of the control signal. Aiming at the situation that the signal in the electronic controlsystem of offshore drilling rig is greatly disturbed by noise，a PID control signal optimiza...
更多Number of views：692 Amount of downloads：458
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NIU Zongxian，FAN Bo，FU Yulin，WANG Chunguang，WU Xiaodan，YANG Chenhui
Abstract: Under traditional PI parallel control strategies，synchronous control systems of multi-motor rigidconnection structure have the problem of unbalanced motor torque output，and there is even a serious risk of shaftbreakage. Taking the rigid connection structure of multi-motor gear transmission as the research ...
更多Number of views：731 Amount of downloads：597
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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...
更多Number of views：822 Amount of downloads：641
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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...
更多Number of views：805 Amount of downloads：630
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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...
更多Number of views：741 Amount of downloads：556
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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...
更多Number of views：694 Amount of downloads：562
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GONG Xuanlin，WANG Junyan
Abstract: In view of the problem that the commutation error of brushless DC motor is difficult to accuratelymeasure during variable speed operation，the relationship between the integral of line voltage difference and themotor rotation angle was analyzed，and it was proved that the integral value of the line voltage d...
更多Number of views：1086 Amount of downloads：883
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WANG Shixin，YU Bo，YUAN Yong，SI Guolei，DAI Jin，CAO Taiqiang
Abstract: Electric valve regulation requires fast response speed，high precision control，no overshoot andstrong anti-interference performance. An active disturbance rejection algorithm based on feedforward compensation was used to control the brushless DC motor（BLDC），and the position error was taken as the input of t...
更多Number of views：1297 Amount of downloads：1154
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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...
更多Number of views：1240 Amount of downloads：1033
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LU Xihao，QIAO Mingzhong，ZHANG Chi
Abstract: In view of the electromagnetic vibration and noise analysis of permanent magnet motor with Halbachstructure at rated power，the analytical expression of radial force wave of permanent magnet motor was established，and two kinds of main force waves which cause vibration and noise were analyzed. The main noise...
更多Number of views：1361 Amount of downloads：1082
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LI Bingran，FU Hongquan，CHEN Xi
Abstract: Aiming at robust control of six-phase copper rotor induction motors（SpCRIM）under uncertaindisturbances，a new backstepping control strategy based on advanced ant colony optimized（AACO）recursiveRomanovski polynomial neural network（RRoPNN）was proposed. Based on the theory of backstepping controltheory，the con...
更多Number of views：1226 Amount of downloads：1130
