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ZHAO Chaokun，YAN Tao，ZHOU Jiachao，YUAN Zhanwei，MENG Pu
Abstract: The AMK servo control system is widely used in cigarette machine equipment like German Protos-M5 and local product ZJ116. But its failure parts repaired could not be guaranteed to operate safely and reliably. Ifthose parts are replaced frequently，the efficiency of the equipment will be seriously impact. To...
更多Number of views：3836 Amount of downloads：14803
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MA Xiaoliang
Abstract: Several problems and their solutions of high-performance inverter-fed motor drive systems wereintroduced: the features and some matters needing attention of two- closed-loop systems; how to improve speedfollowing performance during starting and breaking and to improve anti-disturb ability by means of predicti...
更多Number of views：7864 Amount of downloads：4346
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CHAI Bin，SHI Lei，LIU Zhiyuan，XU Hui
Abstract: The circuit breaker of AC filter in converter station is an important part of HVDC system. Theoccurrence of internal faults will directly affect the stable operation of HVDC system. In view of the fault diagnosisof the circuit breaker for filter，an efficient online monitoring method was proposed to diagnos...
更多Number of views：5288 Amount of downloads：3777
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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...
更多Number of views：5740 Amount of downloads：3734
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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...
更多Number of views：5500 Amount of downloads：3635
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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：4920 Amount of downloads：3613
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ZHANG Tian，SONG Mingxuan，FENG Yuan，HE Fengyou
Abstract: Aiming at the series short-circuit phenomenon caused by device breakdown and control failure，based on the half-bridge structure，the different series short-circuit dynamic sharing voltage characteristics of SiCMOSFET and Si IGBT were analyzed. At the same time，the principle of series short-circuit voltage s...
更多Number of views：4807 Amount of downloads：3583
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GU Zhongfan，CHENYuwei，LI Cheng′ao，ZHANG Dechun，HUANG Hai
Abstract: The 3.5 V/20 A•h lithium iron phosphate battery was taken as the research object.Aiming at the onlineestimation of its state of charge（SOC），the second-order Thevenin equivalent RC circuit model was established，and a joint SOC estimation algorithm was proposed by combining BP neural network，dynamic forgetti...
更多Number of views：5387 Amount of downloads：3338
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LIU Weijie，ZHANG Yiming，CUI Longfei，ZHANG Dong，WANG Xuhong
Abstract: The transmitting coil in the aviation electromagnetic transmitting system was took as the researchobject，considered the influence of the parameters of the transmitting coil on the peak value of the transmitting current，used finite element software，the coil model was established. The skin effect and proximi...
更多Number of views：4449 Amount of downloads：3335
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LIU Yue，JI Guosheng，ZOU Jun，WU Hongfei，YANG Yuan，GUO Yuedong
Abstract: The optimal design of the magnetic integration and integrated printed circuit board（PCB）windingbased on a high-frequency high-density LLC resonant converter was studied. Both the transformer and resonantinductor were integrated into only one magnetic core. By configuring the resonant inductor on the second...
更多Number of views：3408 Amount of downloads：3070
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XIANG Baicheng，LI Sheng，XU Zheng，LI Guangming
Abstract: Regarding the problem of instability in the start-up process of permanent magnet synchronous motor（PMSM）air-conditioner compressor caused by different operating conditions，and combined with the characteristics of shaft error speed closed-loop control，a set of three-stage start-up application program pertin...
更多Number of views：4636 Amount of downloads：2742
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MA Xiaoliang
Abstract: Several problems and their solutions for industrial speed regulation applications of four kinds ofcommonly used AC- DC-AC voltage source converter were introduced. Aiming at the problems of high dU/dt, shaftcurrent and power device thermal fatigue related quantitative data were given. Three kinds of rectifi...
更多Number of views：5276 Amount of downloads：2722
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SUN Yuechao,LI Man,LIAO Cong,CHEN Jingyuan
Number of views：4929 Amount of downloads：2660
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YANG Ming, ZHANG Ruhao, ZHANG Jun,ZHU Haotian,SUN Yongping, CHEN Yangyang, XU Dianguo
Abstract: SCARA robot is especially suitable for assembly work because of its high speed, high precision and mechanism characteristics, so it is widely used in 3C, food and drug, automobile industry and other production processes, such as assembling circuit boards and components. First, the trajectory planning, incl...
更多Number of views：4983 Amount of downloads：2659
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CHEN Ya’ai，LIN Yankang，ZHOU Jinghua
Abstract: The power conversion system in microgrid adopts flexible control strategy to supply the demand loadafter transforming various energy sources. The power conversion system enables the microgrid to be connected tothe grid as a controllable whole unit or to operate independently. Its control strategy is particu...
更多Number of views：4699 Amount of downloads：2636
