Electric drive and its control
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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：1905 Amount of downloads：4106
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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：2072 Amount of downloads：5488
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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：2273 Amount of downloads：4980
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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：1974 Amount of downloads：5291
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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：1818 Amount of downloads：3796
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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：1723 Amount of downloads：4689
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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：2649 Amount of downloads：4339
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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：2727 Amount of downloads：5025
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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：2452 Amount of downloads：5141
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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：2600 Amount of downloads：5198
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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：2376 Amount of downloads：5020
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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...
更多Number of views：2992 Amount of downloads：6067
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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...
更多Number of views：3095 Amount of downloads：6648
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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...
更多Number of views：3223 Amount of downloads：6055
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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...
更多Number of views：9190 Amount of downloads：18233
