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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...
更多Number of views：4939 Amount of downloads：11035
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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...
更多Number of views：4906 Amount of downloads：10326
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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...
更多Number of views：4885 Amount of downloads：8613
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SHEN Jiexin，LIU Lei，HE Dandong，LIU Zhenguo，CHU Houguang，MA Hanchao
Abstract: When the current method is used to control the DC transformer of the DC-DC converter，thecontrol efficiency is low，the immunity is poor，and the loss detection error is large. In order to solve the existingproblems，a DC transformer control method based on the SRDAB DC-DC converter was proposed. By analyzingt...
更多Number of views：4885 Amount of downloads：8921
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ZHANG Jinbo，YIN Yuan，SHI Jian，LIN Shaoyuan，YAN Lei，HUANG Xiaoyu， LIN Yubin，YANG Dishan，CHENG Nuo
Abstract: In order to reduce the measurement error of transmission line crossing distance and reduce theoccurrence rate of transmission line accidents，a method of transmission line crossing distance measurement basedon grid information model was proposed. The platform of crossing distance measurement including data ...
更多Number of views：4885 Amount of downloads：8703
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LI Mingyang，NIU Pingjuan，LI Yuhong，LI Ying，SUI Yu
Abstract: The offset characteristics of transmitting and receiving coils manufactured by different wirelesselectric vehicle manufacturers are a critical issue to ensure the interconnection of domestic and international vehiclecharging. The 3.7 kW wireless energy transmission system was modeled and the SS-type topolo...
更多Number of views：4846 Amount of downloads：8281
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ZHENG Xiaoyong，DENG Jinxiang，HU Ren，WANG Hong
Abstract: Brushless DC motor has been widely used in the market because of its long life，high reliability andhigh torque. The sensorless control method can avoid a series of problems caused by the position sensor and furtherexpand the application of the brushless DC motor. Compared with the traditional sensorless co...
更多Number of views：4797 Amount of downloads：12645
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YANG Shihua，CAO Jun，CHEN Liang，CUI Bo，YU Long
Abstract: In order to solve the problems of large calibration error and model reconstruction failure in theoperation of traditional coaling instrument，an improved calibration algorithm based on direct linear transformation model and an improved 3D reconstruction algorithm based on time-of-flight method were proposed...
更多Number of views：4793 Amount of downloads：9288
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CHEN Bojian，XUN Chao，LIN Chaoqun，XIAO Fen，LIN Keyao，WU Xiangyu
Abstract: The loss rate is an important indicator to measure the technical operation level and economicoperation level of the power system. In response to the actual needs of the distribution network in management andtechnical loss reduction，based on loss statistics and theoretical calculations，a short-term loss cha...
更多Number of views：4790 Amount of downloads：9437
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CHENG Zhiyuan，WU Longfei，LI Zheng，SUI Licheng，WU Xiaoting
Abstract: Current transformer（CT）inductive energy extraction is the most effective power supply method foronline monitoring equipment of power transmission cables. However，the low current of the transmission cable willcause the CT to fail to obtain energy，which will lead to the occurrence of equipment energy supply ...
更多Number of views：4784 Amount of downloads：10262
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WEI Zhengyi，ZHANG Min，ZHOU Mingzhu，DING Xinping
Abstract: In practice，the parasitic parameters have a non-negligible effect on the performance of invertercircuit. The influence of the main parasitic parameters on a new type of switched-coupled-inductor quasi-Z-sourceinverter was studied. By the reasonable analysis of the influence of the parasitic parameters（para...
更多Number of views：4780 Amount of downloads：11265
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TIAN Kai，YU Zhibin，YUAN Yuan，CHU Zilin，SUN Chuanjie，YANG Jingran
Abstract: A fine dead-time compensation method based on the medium voltage three-level IGCT outputfiltering topology was proposed to realize the real-time calculation and compensation of the dead-time effect of theinverter output. Based on the topology of the output filter，the transfer function was established，and t...
更多Number of views：4779 Amount of downloads：9879
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ZHANG Hao，WANG Xuanyuan，NING Bo，LIU Zhen，LIUYa，HUANG Hongwei
Abstract: In order to improve the actual utility of power electricity package decision and avoid the default riskcaused by blind choice，the response stability of power users according to their purchase contract was studied ，apeak-valley power electricity package decision-making method considering response stability ...
更多Number of views：4776 Amount of downloads：8744
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GAO Xiaozhi，QIAO Yu，CAO Xin，LI Zheng，SUN Huiqin，SUN Hexu
Abstract: DC active power filter（DC-APF）can effectively suppress the bus voltage ripple of DC microgrid. Inorder to solve the problem that DC-APF can not work normally due to the failure of switching devices，a fault-tolerant DC-APF topology based on H-bridge converter was proposed，which could ensure the power qualit...
更多Number of views：4730 Amount of downloads：8998
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YE Hai
Abstract: Flexible DC power grid is an important way for efficient transmission of various types of renewableenergy. How to design an efficient reclosing strategy to make it have the ability of rapid recovery after fault is a keyproblem to improve the stability of the whole AC/DC power grid. According to the working...
更多Number of views：4730 Amount of downloads：8567
