Power electronics
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SONG Mingxuan，FENG Yuan，ZHANG Tian，HE Fengyou，GAO Jie
Abstract: Aiming at the lack of realtime detection methods of operation status for NPC three-level inverter，anindirect detection method was studied. In this method，the commutation process of NPC three-level inverter wasanalyzed. And according to Kirchhoff's law，the current and voltage models of three-level circu...
更多Number of views：2613 Amount of downloads：1485
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WANG Peng，LI Zhongzhao，GONG Zhaowei，ZHANG Ningchao
Abstract: In order to solve the problem of coupling mechanism offset in wireless power transfer system，theS-S and LCC-LCC dual topological wireless power transfer system based on parameter optimization was proposed.Firstly，the output characteristics of S-S and LCC-LCC topological energy transmission channels were an...
更多Number of views：2855 Amount of downloads：1527
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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：2851 Amount of downloads：1633
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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：2659 Amount of downloads：1339
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LIU Wenqi，DING Wenfang
Abstract: In order to overcome the shortcomings of the classic Boost converter，such as low boost ratio，largeinput current ripple，and high voltage stress of power devices，a new type of zero input current ripple high gain nonisolated DC/DC converter was proposed. The combination of isolation type Sepic converter，coupl...
更多Number of views：2889 Amount of downloads：1465
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WEN Chuanxin，ZHU Jinda，WU Di，YUN Yang，CHENG Yuan，DU Bochao
Abstract: Silicon carbide（SiC）MOSFET has great advantages in improving efficiency and power density ofinverter for new energy vehicles，due to its advantages as high frequency，low loss and high junction temperature. For the SiC MOSFET module，it is very important to study the short-circuit protection with high current...
更多Number of views：2799 Amount of downloads：1777
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HUANG Haihong，HUANG Yuwei，LIU Xin
Abstract: Aiming at the requirements of portable DC insulation detection devices，a dynamic differencealgorithm based on single-arm was proposed，and a portable DC insulation detection and verification integratedmachine was designed based on this algorithm. The principle of the single-arm insulation monitoring system ...
更多Number of views：3014 Amount of downloads：1793
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WEI Wei，GE Qiongxuan，LI Yaohua，ZHAO Lu，ZHANG Bo
Abstract: The integrated gate commutated thyristor（IGCT）is an important element for efficient and reliableoperation of high power traction converters. The stability of high power converter system is significantly affected bythe voltage and current dynamic characteristics of the IGCT device during the turn-on and tur...
更多Number of views：2878 Amount of downloads：1572
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MA Zhiyuan，HUANG Haihong
Abstract: With the increasing popularity of renewable energy sources such as photovoltaics and wind power，improving the reliability and stability of grid-connected system operation has become a key technology in thesystem. Affected by the dynamic characteristics of the grid，if the traditional droop control is still ...
更多Number of views：2721 Amount of downloads：1472
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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：2777 Amount of downloads：1526
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YANG Shude1，ZENG Zikang，ZHANG Xinwen，GAO Xiongying，CAI Changhong，ZHOU Xin
Abstract: For the technical requirements of on-load voltage regulation based on power electronic switches，athyristor-based on-load voltage regulation unit topology was given based on the analysis of the possible conduction state of each switch in the steady state and the switching law of different states. Considerin...
更多Number of views：2776 Amount of downloads：1569
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ZHANG Liuyang，XU Limei，HUANG Ying，WANG Yao
Abstract: In order to improve the load transient response speed of Buck LED constant current driver，acapacitive current ripple-controlled（CCRC） Buck LED constant current driver was proposed. Based on theoperating principle of Buck LED constant current driver，the state space averaging model of Buck LED constantcurren...
更多Number of views：2749 Amount of downloads：1601
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ZHAO Ruochen，MEI Baishan，ZHANG Jinwei，FU Wenbo
Abstract: Active power filter（APF）has become an important measure for harmonic control because it cantrack and compensate reactive power and suppress harmonics adaptively，dynamicly，and in real time. APF wastaken as the research object，and on the premise of verifying the differential flatness of the system，a differen...
更多Number of views：2752 Amount of downloads：1534
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LI Zhe，LI Chengyuan，YUAN Yuan，CHEN Yujie，WANG Ziman
Abstract: Insulated gate bipolar transistor（IGBT）is widely used in the industry，but the IGBT junctiontemperature is easily affected by changes in operating conditions and the heat dissipation environment in which it islocated. Poor heat dissipation channels will cause the IGBT module to remain in a high temperature ...
更多Number of views：2661 Amount of downloads：1434
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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：2921 Amount of downloads：1529
