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YAN Yulin，XIAYankun，LIU Liyou
Abstract: In order to achieve equal current, a constant current source should be used to drive the LEDs. Aconstant current source based on two output Cuk improved circuits was proposed. The circuit structure, workingmode and constant current principle were analyzed, and the voltage, current and power expressions wer...
更多Number of views：717 Amount of downloads：567
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JIANG Jingwen，ZHOU Jiemin，HONG Feng，ZHENG Gang
Abstract: On the basis of LLC，considering from the perspectives of soft-switching technology，DC/DCcascade converter technology and three-level technology，a new DC/DC composite cascade structure topology onthe basis of Buck-LLC structure was proposed. A 980 W prototype was designed and built for verification，whichpro...
更多Number of views：814 Amount of downloads：576
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WANG Jiarong，DAI Guanghua，HU Liang，GAO Jingxiang
Abstract: In order to realize the application requirements of SiC power devices，a novel dual edge-triggeredisolated drive circuit was proposed. The circuit have the advantages of full isolation of driving signals，strongdriving ability，wide switching frequency range with 0 Hz～500 kHz signal transmission and strong of...
更多Number of views：830 Amount of downloads：729
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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...
更多Number of views：756 Amount of downloads：644
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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...
更多Number of views：725 Amount of downloads：646
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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...
更多Number of views：708 Amount of downloads：662
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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...
更多Number of views：779 Amount of downloads：637
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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...
更多Number of views：792 Amount of downloads：684
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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...
更多Number of views：790 Amount of downloads：2337
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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，...
更多Number of views：808 Amount of downloads：568
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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...
更多Number of views：816 Amount of downloads：666
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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...
更多Number of views：866 Amount of downloads：610
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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...
更多Number of views：958 Amount of downloads：905
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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...
更多Number of views：1206 Amount of downloads：1038
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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...
更多Number of views：1360 Amount of downloads：1050
