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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...
更多Number of views：1435 Amount of downloads：2609
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ZHANG Jun，GONG Min，ZHOU Yi，XIE June，CAO Lei，LIU Yingying
Abstract：In traditional current protection，the effective value of current is compared with the setting value toidentify the fault which is the typical protection scheme for the transmission lines of the power distribution systems.The current is calculated by the fast Fourier transform algorithm. As the calculation o...
更多Number of views：1490 Amount of downloads：2609
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LI Hongqiang，LU Guangming，ZHOU Lei，WEI Yawei，ZHANG Hanhua，MA Jing
Abstract: In order to improve the inertia support ability of grid-connected converter of new energy based onDC capacitor energy virtual inertia control to the power system，an adaptive virtual inertia control method based onlinear quadratic regulator（LQR）was proposed. On the basis of analyzing the dynamic characteris...
更多Number of views：1399 Amount of downloads：2609
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YANG Xiaochu，WANG Guanwen，LUO Guogan，XU Shipeng，ZHANG Dingwang
Abstract: The composition of the double-fed induction generator（DFIG）is complex，and its operation andmaintenance are difficult. Due to the relatively complex electromagnetic transient characteristics of the fault，theextraction quality directly affects the reliability of the fault detection results of the DFIG. Aimin...
更多Number of views：1395 Amount of downloads：2609
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HU Yujie，ZHU Shenglong，WU Shaolei，FENG Yu，WANG Ming，LOU Wei
Abstract：The flexible DC interconnection of medium and low voltage can improve the flexibility andreliability of the distribution network，and the dual active bridge converter is a key link in achieving voltageconversion and electrical isolation in flexible interconnection equipment.The current source resonant dual a...
更多Number of views：1732 Amount of downloads：2608
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ZHUANG Gewei，GU Zhen ，FENG Xiuqing ，DUANYan
Abstract: Automatic verification system of smart meter may be abnormal in the long-term operation process，but the regular manual detection method can not timely learn the risk information，shortening the period of manual inspection will reduce the work efficiency of automatic verification. In most cases，the sample da...
更多Number of views：2994 Amount of downloads：2608
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LI Jiayu，HAN Yuan，WANG Jianjun，PAN Yue
Abstract：Modular multilevel matrix converter（M3C）is a multilevel topology that can directly realize ACACconversion，which has good application prospects in high-voltage transmission systems and DC distributionsystems，but the existence of bridge-arm circulating channels inside the M3C leads to a very complex controlst...
更多Number of views：1247 Amount of downloads：2607
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SONG Weiqiong，GUO Shuai，HAN Liu，XU Chaoqun，SONG Wei，LÜ Fengming
Abstract：In order to monitor current distribution state of parallel silicon carbide（SiC）devices in photovoltaicinverter，a contactless monitoring solution based on anisotropic magnetoresistive sensor was proposed. Accordingto practical position of SiC devices on PCB board，multiphysics simulation tool COMSOL was emplo...
更多Number of views：1784 Amount of downloads：2603
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SUN Zhenqin，QU Jianhua，ZHANG Zhenzhen，QUAN Xiao，LI Hongbin，TAN Peng
Abstract: In order to improve the measurement accuracy of the position and speed closed-loop of the brushlessDC motor，which is currently used in the attitude control actuator，a new cumulative pulse M/T method wasproposed，based on incremental off-axis magnetic encoder（AS5304A）and TMS570 chip internal integratedenhance...
更多Number of views：1470 Amount of downloads：2602
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YANG Zhaohui，WEI Huadong，HE Liuqing，ZHANG Hao，PENG Guoping，SHI Ben
Abstract：Aiming at the problem of large switching loss of modular multilevel converter（MMC），startingfrom the switching frequency optimization strategy，the existing switching frequency optimization strategy wasimproved，and the accurate analytical formula of sub-module capacitor voltage based on the real-time value of...
更多Number of views：1124 Amount of downloads：2590
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DENG Jiahao，LIN Lingxue，ZHU Lin，WU Zilong
Abstract：Up to now，the distribution network planning project optimization method rarely considered theimpact of the speed of load growth on the power supply efficiency of the project and the year when the project isselected，and rarely considered the urgency，technical benefit and economic benefit of the project at th...
更多Number of views：1431 Amount of downloads：2588
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TANG Junyi，DONG Xuetao，QIN Yanhui
Abstract: The large-scale grid connection of renewable energy with strong randomness and volatility and thenet load fluctuation caused by time sequence put forward higher requirements for the operation flexibility of powersystem. In order to quantitatively evaluate the operation flexibility capacity of power system，...
更多Number of views：1409 Amount of downloads：2587
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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...
更多Number of views：1339 Amount of downloads：2585
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WANG Haiyan，WU Ziran，QIAN Qi，XIA Chuyang，XU Haibo，LIN Zhenquan
Abstract: In order to improve the short-circuit breaking capacity of solid-state circuit breaker（SSCB）in DCsystem，a multi-objective optimization method that explores component parameters to achieve optimal breakingcharacteristics was proposed. A detailed analysis of the breaking process of the SSCB during a short-ci...
更多Number of views：1393 Amount of downloads：2584
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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：1601 Amount of downloads：2582
