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GONG Yanchao,YANG Haiyun,MIAO Junjie,GAO Zhi
Abstract: Parallel capacitor banks can effectively improve the efficiency and quality of power transmission inthe application process of power distribution network. However,due to some unreasonable factors in the switchingmode of power capacitors,it will also generate overvoltage,thus affecting the power grid. stabi...
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Number of views:871 Amount of downloads:774
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TIAN Kai,YU Zhibin,YUAN Yuan,CHU ZiLin,CHEN Yujie,SUN Chuanjie
Abstract: A test method was proposed that can evaluate the ultimate power output capability of large capacityIGCT three-level converter. Based on synchronous symmetrical PWM modulation and temperature estimationmodel,the power experiment of IGCT three-level converter was carried out,which can test the equipment capa...
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Number of views:858 Amount of downloads:764
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YANG Tianxiang,CHENG Zhijiang,YANG Handi,TIAN Feng
Abstract: Aiming at the demand of intelligent coal mine and exit problem of underground coal mine powernetwork,an energy storage hybrid distribution transformer based on modular multilevel converter(MMC-HDT)was proposed. Firstly,the proposed energy storage MMC-HDT was modeled and four operation modes were givenconsi...
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Number of views:814 Amount of downloads:932
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CHENG Shiwei,ZHAO Shiwei
Abstract: To cope with the increasing demands of the application of high step-up DC-DC conversion,such asthe absorption of renewable energy,electric vehicles and aerospace,a high step-up DC-DC converter based onthree-winding coupled inductor with low voltage stress was proposed by utilizing magnetic coupling technol...
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Number of views:975 Amount of downloads:762
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LIU Fang,XU Yunyu,HE Guoqing,LI Guanghui,LIU Shiquan,LIU Wei
Abstract: With the increasing permeability of distributed generation,the grid becomes weaker and weaker. Itis very important to help the system achieve low voltage ride through(LVRT)when the grid voltage drops underweak grid. Aiming at a series of problems such as over-current,voltage collapse and system oscillation...
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Number of views:924 Amount of downloads:803
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CHEN Qi,HONG Feng,SHAO Dongwei,HU Xiangyu
Abstract: Pulsed xenon lamp is often used for performance testing of solar cells because its spectrum is mostsimilar to sunlight. The pulsed xenon lamp power supply is the key factor to ensure the reliable operation of thepulsed xenon lamp and improve the photoelectric conversion efficiency. In order to solve the pr...
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Number of views:926 Amount of downloads:2492
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WANG Yuqi,WANG Yufeng,GUO Yubao
Abstract: The equipotential switching algorithm of the traditional mechanical static compensator(MSC)device had many limitations in the operation of the single machine,such as the long operation time of themicrocontroller control chip,the poor convergence of the calculation results had been affected by the hardware,...
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Number of views:929 Amount of downloads:701
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XU Yelin,LU Xinqiang,ZHAO Ang,MA Li
Abstract: A cooperative control method for multi-port energy routers in distributed distribution networks wasproposed. Under the premise of power balance and bus voltage stability,seamless switching of various workingmodes of multi-port energy routers was realized to ensure the security and stability of distribution...
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Number of views:944 Amount of downloads:872
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ZENG Jiang,XIONG Taojun,XIE Baoping,ZHAO Benqiang,MA Haijie
Abstract: Aiming at the deficiency that the traditional active power filter(APF)can only control the localharmonic source,a harmonic active defense system(HADS)based on virtual harmonic resistance was proposed.The principle of harnessing harmonics in distribution network by HADS was analyzed,the HADS simulationmodel...
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Number of views:993 Amount of downloads:766
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HU Changbin,MA Tengfei,MA Jianli,XU Zheng
Abstract: Distributed power generation technology is an important part of modern smart microgrid,in whichthree-port isolated DC converter plays an important role. Because the storage battery system can realize the flowand storage of energy,so the combination of three-port isolated DC converter and photovoltaic power...
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Number of views:1095 Amount of downloads:1046
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ZHA Haitao,XU Kexin,LI Xiaowen,LIU Bin
Abstract: Active power filter(APF)is one of the main ways to eliminate harmonic quality problems in powergrid,and LCL filter is commonly used to connect APF to power grid. In order to suppress the resonance problemcaused by LCL filter,active damping based on capacitor current feedback is a common method. Active damp...
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Number of views:1358 Amount of downloads:1208
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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:1525 Amount of downloads:1185
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TIAN Kai,LI Fengsheng,CHU Zilin,YU Zhibin,LI Teng,WANG Mingyue
Abstract: Aiming at the short circuit fault protection of medium voltage three-level converter with IGCT asthe core and the monitoring of changes in main circuit device parameters during operation,a method was proposed to simultaneously realize fault identification of IGCT three-level converter and monitoring of mai...
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Number of views:1425 Amount of downloads:1518
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WANG Junlong,QIAN Xujun,LI Yongxiang,WANG Shouchang
Abstract: It is well known that the power system operation process will appear to require explicit justprediction difficulties and other problems,the power system operation reliability prediction model based oncontinuous collaborative machine learning algorithm was constructed.First,the continuous collaborative mach...
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Number of views:1201 Amount of downloads:1001
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LI Lingxin,JIAO Yuping,SUN Jiacheng,DENG Fujin,ZHANG Qi,REN Biying
Abstract: High voltage converter is often used in high voltage direct current(HVDC)transmission system tocontrol power supply nearby at high potential. However,the high bus voltage and its wide range fluctuation in themodule pose a challenge to the high reliability design of power supply. To solve this problem,a hig...
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Number of views:1911 Amount of downloads:1560