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ZHANG Junkun,LEI Ertao,JIN Li,MA Kai,XIA Chenyang,WANG Xirui
Abstract:The rapid development of modern power electronics technology promotes the insulated gate bipolartransistor(IGBT)wide range of applications in the AC motor drive,inverter,switching power supply and newenergy industry. In the application process of IGBT,due to the complex and varied circuit topology and syste...
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Number of views:492 Amount of downloads:647
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WU Yue
Abstract:The problem of AC train passing neutral section can be solved by ground's flexible passing neutralsection method. However,for multisystem electric locomotives,the switching of power supply system in neutralzone is much more complicated,but there is little research at present. Based on the approach of ve...
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Number of views:368 Amount of downloads:448
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DONG Lizhi,ZHAI Bingcong,WANG Kaifeng,JIA Xuecui
Abstract:When multiple energy storage units are connected to an energy storage station by the powerelectronic converter,the interaction and coupling effect bring challenges to the stable operation of the system. Thesmall-signal model of the parallel storage system was established. The stability analysis was carried ...
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Number of views:394 Amount of downloads:280
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ZHANG Junling,YIN Peng,WANG Jiwei,LONG Mengjiao
Abstract:Relay coil is an effective method to improve the performance of wireless power transmission. Butthe selection of relay coil position is usually based on experience. To elucidate the mechanism of the impact of relaycoils on system performance,the port impedance differences between typical two-coil and relay-...
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Number of views:355 Amount of downloads:292
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CHEN Xuling,LIU Cheng,XU Xinwei,DONG Shuo,TIAN Ting
Abstract:Taking the planar rotation mechanism as an example,a magnetic coupling wireless powertransmission system was designed and studied from two perspectives:the spatial structure of the coils and theresonant compensation circuit. This system aimed to reduce the voltage fluctuations caused by significant changesi...
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Number of views:388 Amount of downloads:292
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ZHANG Jianwei,YANG Zaixin,WANG Yunhui,LIU Guangchen
Abstract:In order to alleviate the intensive computational burden in the model predictive contro(l MPC)of the matrix converter,the MPC of the matrix converter was divided into the predictive control of the virtual rectifier and virtual inverter based on the equivalent indirect modulation of the matrix converter. Com...
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Number of views:377 Amount of downloads:297
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HUANG Zhaobin,ZHANG Zhijian,LONG Tan,HU Bin,LIU Wenlong,WANG Gaolin
Abstract:When the Vienna rectifier is connected to unbalanced loads operating under light load conditions,the slight power difference causes unbalanced voltage of bipolar DC bus,which increases the voltage stress on theswitching device and DC-link capacitance. To solve the above problems,a DC offset reduction of neu...
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Number of views:378 Amount of downloads:318
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HU Xiangyu,HONG Feng,SHAO Dongwei
Abstract:Switching power supply is now developing towards high-frequency soft-switching and high powerdensity,the volume of magnetic components is greatly reduced,and the excitation inductance of transformer nolonger meets the assumption of large excitation inductance in traditional analysis. Under this background,t...
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Number of views:347 Amount of downloads:363
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WU Yihao,ZHAO Shiwei,ZHOU Jie,XIAO Chaoren
Abstract:In order to solve the problem of large peak-to-peak inductor currents in dual active bridge converterswith mismatched input and output voltages,a four-degree-of-freedom modulation(FDFM)strategy was proposedby combining symmetric duty cycle modulation and asymmetric duty cycle modulation. By analyzing the op...
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Number of views:330 Amount of downloads:351
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ZHAO Faping,SHE Yanjie,SUN Huanyu,BU Xiangzhou,BAI Tao
Abstract:A sliding mode linear self disturbance rejection control strategy was proposed to address the outputvoltage fluctuations caused by sudden load changes,changes in DC bus voltage,disturbance addition,and otherdisturbances in three-phase interleaved parallel DC-DC converters. Firstly,a mathematical model of th...
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Number of views:370 Amount of downloads:350
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DU Jifei,WANG Yang,WANG Li,LIU Haoruo,MU Yunfei,SUN Qiang
Abstract:The primary side feedback can stabilize the output voltage,and improve the service life of theequipment without using the secondary winding detection error signal. The topology of active filter and theimproved method of primary side feedback were adopted. The performance of active EMI filter topologies wasa...
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Number of views:416 Amount of downloads:404
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CUI Mengyu,YIN Qinglong,GUO Xudong,LÜ Tuo,HU Qifeng,LIU Zhengyan
Abstract:The VPX power standard is currently the most compatible military embedded computer standardinternationally,and its modules can stably power multiple different functional modules in the chassis. A VPXpower board based on VITA46 and VITA62 standards was designed. The design architecture,ideas,and functionsof ...
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Number of views:424 Amount of downloads:387
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XU Shizhou,CHANG Jinhai,FAN Jingsheng,JIA Xinxin
Abstract:A method for establishing edge triggered pulse control switch state time was proposed to address thedivergence of floating capacitor voltage and DC capacitor midpoint voltage in a 5-level active neutral point clamped(ANPC-5L)inverter using the space vector pulse width(SVPWM)algorithm in the g-h coordinate s...
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Number of views:472 Amount of downloads:408
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ZHANG Boyu,ZHANG Xiaoli,FENG Rui,ZHANG Zhaobo,CAI Siqi ,MA Xiaoxuan
Abstract:Based on the principle of magnetic coupling resonance technology,a bilateral LCC topologycompensation network parameter design method was adopted. Firstly,the mathematical model of the main circuitof the bilateral LCC topology was analyzed,and the inductance ratio of the coil self-inductance and the seriesc...
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Number of views:438 Amount of downloads:947
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LIU Hui,SU Jianhui,ZHANG Jian,LIU Shuo,SHI Yong,ZHANG Jie
Abstract:Wireless power transfer(WPT)load voltage,current and other state information need to be sent tothe original side for closed-loop control and monitoring processing,the secondary side to the original side of thecommunication is very important. Firstly,the topology and working principle of capacitive modulated...
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Number of views:606 Amount of downloads:429