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ZHANG Guoqiang，NIU Ben，YANG Hua，WANG Gaolin，XU Dianguo
Abstract: Maximum torque per ampere（MTPA）control is one of the important methods to improve theefficiency of sensorless drive system of permanent magnet synchronous motor（PMSM）. In the sensorless drivesystem，the traditional calculation method deduces the analytical solution of the optimal current vector angleaccordi...
更多Number of views：747 Amount of downloads：606
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DU Yiming，CHENG Zhijiang，LI Zhiwen
Abstract: In order to realize the high-precision trajectory tracking control of four-wheel skid-steering mobilerobot（SSMR），under slip and external disturbance，an auto-disturbance tracking controller based on double closedloop rail structure was designed，and its stability was proved. First of all，in order to solve the...
更多Number of views：719 Amount of downloads：604
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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：732 Amount of downloads：599
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YU Hui，ZHOU Shigui ，MA Feihong，ZHANG Kecheng
Abstract：Permanent magnet synchronous machines（PMSM）has serious chattering problem when traditionalsliding mode observer（SMO）is applied to low-speed operation with fixed sliding mode gain. To solve thisproblem，a full-order sliding mode observer（FSMO）with fuzzy adaptive adjustment of sliding mode gain wasproposed，whi...
更多Number of views：1159 Amount of downloads：597
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JIA Junqing，ZHANG Yifan，PAN Dazhi，LIANG Shuai，YANG Yang
Abstract: Under the background of the increasingly prominent voltage sag problem in modern power grids，itis of great engineering significance to accurately identify the users' profile of demand of voltage sag control forguiding users' precise investment decisions for voltage sag control and helping power gri...
更多Number of views：642 Amount of downloads：594
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LI Ruizhe，WU Ming，LIU Shiyu
Abstract：To address the issue that existing microgrid planning evaluation methods do not adequately accountfor the influence of uncertainties in the system and environment on the evaluation results，a microgrid planningevaluation method based on regret theory-vlsekriterijumska optimizacija i kompromisno resenje（VIKOR...
更多Number of views：538 Amount of downloads：593
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WU Tong，LI Jian，LI Guodong，LIU Lu，ZHU Liguo，FENG Minshan
Abstract: There are many elderly people with limb disorder in China，and exercise rehabilitation technology isan effective means of rehabilitation treatment. However，the serious imbalance of doctor-patient ratio makes itdifficult for everyone to enjoy rehabilitation medical services. Impedance control technology is u...
更多Number of views：459 Amount of downloads：592
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SHI Dongsheng，WANG Tao，QIU Shuming，WANG Wenguang，WANG Yubo
Abstract: Application of TAC1 series high performance high power inverter products of Tianjin ElectricResearch Institute on 20-high reversible mill was introduced.The common DC bus multi drive system consists ofactive infeed converter and inverter. Firstly，the device selection of the system and the calculation of tra...
更多Number of views：723 Amount of downloads：590
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PENG Yanlai，FAN Yong，YANG Xiaofeng，YANG Hongyu，WANG Zhixin
Abstract: Aiming at the problems that the amount of data in wind farm SCADA data is huge and it is difficultto classify the fast fault of wind turbine generator，a dynamic threshold AdaBoost algorithm（DTAdaBoost）wasproposed. Based on AdaBoost algorithm，the dynamic threshold was introduced to screen the sample set dat...
更多Number of views：649 Amount of downloads：585
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YAO Yan，GAO Feilin，ZHOU Ziwang
Abstract: Aiming at the problems of increased network loss and node voltage deviation of the traditionaldistribution network after the distributed generations（DGs）is connected to the network，an optimization strategythat takes into account the reactive power output of DGs grid-connected inverter was proposed. Firstly...
更多Number of views：770 Amount of downloads：582
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SUN Ke，WANG Lei，YANG Xuan，WENG Hua，SUN Yikai，ZHENG Jiehui
Abstract: How to coordinate between power grid safety，low carbon and economic costs to achieve themaximum social benefits has a great impact on the "double carbon" strategic goal put forward by Chinagovernment. Therefore，a multi-objective optimization method for elastic power grid considering resilience indexwas pro...
更多Number of views：803 Amount of downloads：578
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JIANG Jingwen，ZHOU Jiemin，HONG Feng，ZHENG Gang
Abstract: On the basis of LLC，considering from the perspectives of soft-switching technology，DC/DCcascade converter technology and three-level technology，a new DC/DC composite cascade structure topology onthe basis of Buck-LLC structure was proposed. A 980 W prototype was designed and built for verification，whichpro...
更多Number of views：815 Amount of downloads：577
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WANG Pengcheng，PAN Ligang，WANG Yijie
Abstract: The emergence of wireless power transmission（WPT）technology overcomes the strict requirementsof traditional wire transmission process on transmission site conditions，maintenance convenience and security，which has a wide range of application scenarios. In the WPT technology，the misalignment tolerance charac...
更多Number of views：603 Amount of downloads：570
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YAN Yulin，XIAYankun，LIU Liyou
Abstract: In order to achieve equal current, a constant current source should be used to drive the LEDs. Aconstant current source based on two output Cuk improved circuits was proposed. The circuit structure, workingmode and constant current principle were analyzed, and the voltage, current and power expressions wer...
更多Number of views：718 Amount of downloads：569
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WANG Yuqi，WANG Yufeng，GUO Yubao
Abstract: The equipotential switching algorithm of the traditional mechanical static compensator（MSC）device had many limitations in the operation of the single machine，such as the long operation time of themicrocontroller control chip，the poor convergence of the calculation results had been affected by the hardware，...
更多Number of views：809 Amount of downloads：569
