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LIU Dong
Abstract: Focus on the stator winding insulation and voltage oscillation of variable frequency motor，thetransition process of the pulse voltage output by the frequency converter in the transmission path of stator windings，frequency conversion cables，reactors，etc was analyzed，the voltage equivalent mathematical model...
更多Number of views：1545 Amount of downloads：3144
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LI Shengnan，HE Tingyi，HE Xin，HE Peng，ZHANG Yongchang，ZHANG Shengan
Abstract：During the joint operation of permanent magnet direct drive wind power generation systems，thechanges in motor side parameters may cause problems such as reduce control accuracy and stability on the machineside，which in turn affects the DC bus voltage of the converter，leading to power fluctuations on the gri...
更多Number of views：1542 Amount of downloads：3947
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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：1539 Amount of downloads：2280
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KANG Jiale，ZHOU Xuntian，ZHANG Zhigang，CEN Yinwei
Abstract: In order to improve the utilization rate of clean energy and promote the stable and low-carbonoperation of the microgrid，a low-carbon optimal dispatching model based on load side flexible resources wasestablished. According to the flexibility resource analysis，the flexibility resource modeling of load side...
更多Number of views：1539 Amount of downloads：2670
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QIAN Junjie，LI Haoquan，LI Guanghua，XU Dongli，LÜ Ganyun
Abstract：Aiming at the problem of power quality deterioration caused by a large number of high-permeabilitydistributed generation connected to the distribution network，a power quality assessment method based oncombination weights and vlsekriterijumska optimizacija i kompromisno resenje（VIKOR）method was proposed.Firs...
更多Number of views：1528 Amount of downloads：2024
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FAN Enze，LI Yaohua，GE Qiongxuan，ZHAO Lu
Abstract：Under digital control，the inner current loop of the LC-type inverter is affected by the control delay，which leads to the weakening of its active damping effect. Increasing the sampling control frequency can effectivelyreduce the negative influence of digital control delay. Furthermore，in order to suppress t...
更多Number of views：1527 Amount of downloads：2637
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HU Junhua，WEI Huabing，FUYinfang，QIAOMin，GAO Baolong
Abstract: The safety monitoring of existing ultra-high voltage direct current（UHVDC）converter stationsmostly adopts manual on-site detection，which presents major safety hazards and high labor costs. In order to meetthe safety needs of the power transmission system，a multi-angle joint monitoring system was designed f...
更多Number of views：1526 Amount of downloads：4457
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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：1519 Amount of downloads：2083
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WANG Wenyuan，LUO Zhiwei，XIA Huan，CHEN Jie
Abstract：The modeling of distributed power sources in DC microgrids serves as the foundation for large-scalepower system simulations. However，the difficulty in obtaining electromagnetic parameters of diesel generatorshampers the accuracy of their electrical characteristic modeling. To address this issue，a data-drive...
更多Number of views：1516 Amount of downloads：4450
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SONG Zhuoran，DOU Wenlei，LI Jianfeng，JIANG Tao，LU Sichen，JI Hansong
Abstract: In order to improve the operation economy of the distribution system with multiple industrial parksand restrain the power fluctuation of the distribution-micro tie line，a multi-time scale optimization schedulingstrategy for the distribution system with multiple industrial parks was proposed based on the ro...
更多Number of views：1513 Amount of downloads：2702
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ZHANG Xing，LIU Pingfei，ZHANG Liuli，ZHANG Yuwei，JIN Yu，XIAO Qian
Abstract：Under the promotion of carbon peak and carbon neutrality，in order to effectively reduce the carbonemissions of distributed generators in islanded AC/DC hybrid microgrid clusters，a distributed low-carbon controlstrategy was proposed. Firstly，the topology of the islanded AC/DC hybrid microgrid cluster was giv...
更多Number of views：1512 Amount of downloads：5570
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ZHU Changlin，TU Qunzhang，JIANG Chengming，WANG Shijiao
Abstract：The synchronization accuracy of a multi-motor speed synchronization system is influenced by themotor control algorithm and synchronization control strategy. In response to the shortcomings of existing controlstrategies，a mid-range deviation coupling control strategy for multi-motor speed synchronization sys...
更多Number of views：1512 Amount of downloads：3703
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CHEN Xiaoru，HUANG Longyi，LAI Shengjie，YANG Mingjia，WANG Zeqing，XIA Chengjun
Abstract：The circulating current of metal sheath in high voltage cable is the superposition of induced currentcomponent and leakage current component. At present，the calculation of induced current component is relativelymature，but the calculation of leakage current component is insufficient，which affects the final c...
更多Number of views：1509 Amount of downloads：2344
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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：1509 Amount of downloads：2365
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JIANG Zhaoping，LIYue，LIUMingkai，ZHEN Dongfang，HOU Xinxu，WANGTong
Abstract: In order to ensure the efficient and stable operation of high-temperature submersible motors，and totimely avoid motor failures caused by high operating temperatures，which may affect production，it is necessary toobtain their underground temperature without temperature sensors. Based on this situation，a temp...
更多Number of views：1508 Amount of downloads：3256
