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WANG Chao,CAO Wei,ZHANG Xuhang,QIU Chunfeng,CHEN Wei,LI Yun
Abstract:Based on the low-speed communication network,a multi-energy storage operation method of DCmicrogrid with improved power droop control was proposed so as to realize the balanced control in three aspects:state of charge(SOC)balance,rational power distribution among energy storage units and stable bus voltage....
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Number of views:3769 Amount of downloads:9911
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YANGYifan,YIN Han,LU Zhiye,YU Xueying
Abstract: In order to solve the problems of large volume and short service life of the traditional electrolyticcapacitor frequency converter,the thin film capacitor was used to replace the electrolytic capacitor to constitute theAC-DC-AC frequency converter without electrolytic capacitor. Aiming at the problem of bu...
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Number of views:3750 Amount of downloads:15553
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LUO Huanliang,WANG Zaixiang,LI Yesong
Abstract:Aimed at the issues of deadbeat direct torque and flux control strategy(DB-DTFC)such as relyingon the accurate motor model,high computational load,and coupling between torque and flux,a simplified strategy of DB-DTFC for permanent magnet synchronous motor which based on flux planning was proposed. Firstly,p...
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Number of views:3735 Amount of downloads:15758
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LUO Ranjie,LI Qian,GAO Jing,FENG Chongwen,MAMengyuan,GUO Peijian
Abstract:The development status of electric drive systems in the industrial sector and their significance inpromoting green and low-carbon transformation were studied. As a crucial control and energy-saving equipment inthe industrial sector,electric drive systems face numerous challenges posed by unchecked developme...
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Number of views:3725 Amount of downloads:14330
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DANG Yihan,XU Chuanfang,WANG Shaozu
Abstract:Usually,the DC side of the traction rectifier requires a series LC resonant circuit to filter out thepulsating component of 2 times the grid frequency. When the resonant inductor on the DC side had a short-circuitfault,the pulsating component would be transferred to the motor side,the problems such as torque...
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Number of views:3722 Amount of downloads:17345
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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...
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Number of views:3722 Amount of downloads:9225
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HUO Zhen,XIE Jingcheng,WANG Chenyu,LIU Hao,MENG Jianhui,GAO Benfeng
Abstract:Grid-forming(GFM)converter is a voltage source and has good adaptability and frequency-voltagesupport in weak grid,but is prone to oscillation instability in strong grid due to impedance characteristics. To solvethis problem,based on the analysis of the impedance characteristics of the GFM converter,an adap...
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Number of views:3721 Amount of downloads:16865
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DONG Yi,ZHOU Yufei,LIU Shuai,WANG Yingying
Abstract: The coupling coefficient of the loosely coupled transformer in the inductively coupled wirelesspower transmission(ICPT)system is a key parameter affecting the conversion efficiency of the wireless energytransmission system. To improve the coupling coefficient,an equivalent magnetic circuit model was establ...
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Number of views:3720 Amount of downloads:8247
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WANG Kun,LIU Xiaonan,DU Yingkang,ZHANG Bohan,TIAN Xinyi,ZHANG Zhaonan
Abstract:Decentralized multiple energy systems(DMES)are vital for energy transition and local efficientutilization. The standards for DMES cover various fields,including distributed energy,microgrids,energy storagetechnologies,and communication control,making the standardization work more systematic and complex.Curr...
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Number of views:3696 Amount of downloads:18839
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WANG Yi,JIA Hongbo,WANG Cong,ZHANG Lihui,YANG Minghao,LI Baohui
Abstract:It is an important means to improve the anti-G ability of pilots to simulate the flight G-loadcharacteristics of aircraft in full envelop flight on the ground through centrifuge. With the great improvement ofmaneuvering performance of manned aircraft,it is extremely difficult to accurately analyze its fligh...
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Number of views:3686 Amount of downloads:11157
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XU Hai,MI Yanqing,WANG Yanyang,XU Zhipeng
Abstract:Permanent magnet synchronous motor(PMSM)has the advantages of fast dynamic response,highpower density,and high torque at low speed,but the temperature variation and complex working conditions willcause the variation of PMSM parameters,thus affect motor performance and reduce the output efficiency. Toaddress...
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Number of views:3684 Amount of downloads:15325
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QIAO Chunlin,JIN Chuxiong,CHEN Dong,LIU Jianming
Abstract:In response to the potential local electric field distortion and insulation weaknesses that may occurunder high-voltage operating conditions in 35 kV European cable connectors,a 35 kV European cable connectorsstructural design method based on adaptive geometric optimization was proposed. The method integrat...
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Number of views:3683 Amount of downloads:16309
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LONG Zhengyu,WANG Xuhong,FAN Shaosheng
Abstract: In view of the traditional wind tower cleaning,painting,maintenance and other operations,therewas a high risk of artificial aerial work. In order to ensure the personal safety of workers and improve workefficiency,a wheeled climbing robot based on load balancing adjustment was designed. By analyzing the fo...
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Number of views:3650 Amount of downloads:13074
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YUE Xuelei,WANG Lei,TIAN Di,XU Kelei
Abstract: Permanent magnet synchronous motor(PMSM)has become the development direction of the newgeneration of rail transit traction system due to its characteristics of high efficiency and high power density. Amongthem,the research on the identification method of the initial position and frequency of the motor roto...
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Number of views:3642 Amount of downloads:15797
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ZHAN Chengkang,LI Xiaolu,LU Yiming,LIU Riliang,LI Congli
Abstract: With the access of large-scale distributed energy resources in active distribution network,thetraditional centralized control architecture system will not effectively deal with a large number of distributed unit,so it is necessary to study the optimal scheduling of distributed resource cluster in active di...
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Number of views:3630 Amount of downloads:8970