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DONG Yue，HE Yingfei，DU Lulu，TANG Mingjie，JIN Guangchao，ZHAO Jing
Abstract：Modular multi-level matrix converter（M3C）is a kind of new topology which can convert onespecified electric frequency to another directly，it is applicable to high voltage and large capacity scene. In thefractional transmission system，the complete flow was introduced to achieve power frequency grid fault ride...
更多Number of views：2472 Amount of downloads：10277
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ZHU Yuanzhe，WANG Ling，WU Zhengrong，LÜ Hong，XIAO Fan
Abstract：In order to further improve the output performance and efficiency of the converter，a grid-connectedconverter based on heterogeneous device mixing was proposed，referred to as heterogeneous grid-connectedconverter（HGCC）. The HGCC consists of two half-bridge modules based on SiC MOSFET devices，which arecross-c...
更多Number of views：2402 Amount of downloads：10276
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CHEN Sisi，LI Zhigang，ZHENG Jiehui
Abstract：The energy flow analysis method with both high precision and high computational efficiency is abasic tool to simulate the operation and analyze the interaction between the thermal and electric coupling systems.The traditional iterative numerical method is slow in computation，poor in computability for large-...
更多Number of views：2465 Amount of downloads：10272
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HU Dong，HU Jingtao，ZHANG Wentao，LÜ Feichun，WU Xu
Abstract: Photovoltaic（PV）power generation is an important power generation method to achieve the goal ofcarbon neutrality. During the grid connection of PV power generation system，due to the characteristics of inverterand the influence of nonlinear load，high-order harmonics are generated，the power quality of the po...
更多Number of views：2841 Amount of downloads：10271
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HU Xiangzheng，GAN Pei，LI Ke，WU Wenqi，GUO Hanting，HUANG Xianjin
Abstract：The insulated gate bipolar transistor（IGBT），as the core device of power electronics system，iswidely used in industrial control，transportation and new energy power generation due to its high efficiency andhigh switching frequency. However，the internal bonding wire is vulnerable to thermal stress and current ...
更多Number of views：2267 Amount of downloads：10265
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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：10265
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JIA Dexiang，ZHONG Cheng，LIU Zhanjie，ZHENG Houqing，GUO Yang
Abstract: Photovoltaic（PV）generation usually operates in maximum power point tracking（MPPT）mode，which cannot provide inertia and frequency support for the power system. Virtual synchronous generator（VSG）control is an attractive control method that can provide the similar behavior of synchronous generator（SG）.However...
更多Number of views：2965 Amount of downloads：10264
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WANG Yufei，WANG Bo，JIANG Xiuhong
Abstract：Brushless DC motor has the advantages of high reliability and high efficiency，but due to its ownstructural characteristics and driving characteristics，it will produce large torque pulsation during operation. In lightof this operation problem，an improved direct torque control strategy for brushless DC motor ...
更多Number of views：1890 Amount of downloads：10263
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WANG Xing，TAN Peixiao，CHENG Zhijiang，MAWanqing，TIAN Bo
Abstract: Retired power batteries have poor parameter consistency，when they are used for energy storageafter series and parallel connections，the barrel effect is obvious and the failure rate is high. So the improved modular multilevel H-bridge converter（MMHC）distributed energy storage based on modular multilevel con...
更多Number of views：5224 Amount of downloads：10251
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ZHOU Jie，ZHAO Shiwei，WU Yihao，YANG Xiangyu
Abstract：In order to optimize the current stress of dual active bridge（DAB）converter，an improved dualphase shift（IDPS）modulation was proposed based on the traditional dual phase shift（DPS）modulation. Firstly，the working principle of IDPS modulation was introduced，its steady-state working characteristics were analyze...
更多Number of views：2736 Amount of downloads：10237
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ZHANG Chao，QIU Han，LI Zhe，LIU Bochang，Zhang Baoshun，LI Chengyuan
Abstract: A control strategy of off-grid start-up of energy storage system（ESS）was proposed，which canmake all power converter systems（PCSs）entered off-grid mode smoothly and quickly in MW level battery energystorage power station，and make off-grid voltage set up. The unified off-grid phase angle and enable signal we...
更多Number of views：5816 Amount of downloads：10221
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LUO Lan，WANG Yuhong，SONG Ruihua，BI Jingtian，CHEN Shiyu，WAN Liangbin
Abstract: In the multi terminal flexible direct current（DC）transmission system，the flexible direct inner andouter loop control can not provide inertial support for the receiving end passive network. Traditional virtualsynchronous generator（TVSG）control can provide inertia support for passive network，but it can only ...
更多Number of views：4965 Amount of downloads：10202
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DING Chaohui，YAO Fei，JANG Jun,GAO Ang，SHAO Gao
Abstract：The traditional predictive current control for three-phase LCL grid connected inverters has theproblems of large steady-state ripple and unstable switching frequency，which is not conducive to the quality of grid connected current and the design of filters. Therefore，an improved three vector fixed frequency ...
更多Number of views：2603 Amount of downloads：10193
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JIA Junqing，LÜ Chao，LIU Dinghua，XU Hao
Abstract: With the rapid development of artificial intelligence algorithms，convolutional neural networks withfewer layers have been used in distribution network overvoltage recognition. The deep-level network has a higherrecognition rate，but requires a large number of data samples. At present，the amount of data in t...
更多Number of views：5897 Amount of downloads：10193
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LIU Qiwei，ZENG Jiang
Abstract：In view of the need to test the operation of power electronic equipment under various workingconditions in the current new power system，a control strategy using linear auto-disturbance rejection technologywas proposed to study the power grid simulator with line impedance simulation function. On this basis，i...
更多Number of views：2221 Amount of downloads：10188
