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LIU Juan，LEI Hui，LÜ Jin，WANG Yang，Xu Deshu
Abstract：The state of charge（SOC）of batteries is one of the most important parameters in lithium-ionbattery management technology，and high-precision SOC estimation is beneficial for the grid connection andcontrol of energy storage stations. Battery charge and discharge data are not only time-series in nature，but als...
更多Number of views：616 Amount of downloads：653
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XU Binbin，CHEN Chang，ZHANG Aoyu，WANG Yongqiang
Abstract: In order to study the distribution of magnetic field and temperature field of dry-type transformeriron core more accurately，analyze the influence of different excitation on the magnetic field loss and hot spottemperature rise of dry-type transformer core，firstly，Maxwell was used to calculate the transient ...
更多Number of views：697 Amount of downloads：984
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WU Qing，AN Shaoliang，XU Yixuan，DONG Songsong
Abstract: A quasi-resonant Flyback（QR-Flyback）converter with 65 W output was designed. The valleyswitching principle and the switching loss reduction mechanism of QR-Flyback were analyzed，the frequency andloss characteristics of the system under different working conditions were compared，and the advantages anddisadv...
更多Number of views：618 Amount of downloads：542
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GUO Jiahao，YANG Xiong，FANG Xin，GUAN Jiamin
Abstract: The secondary voltage signal output by electronic capacitive voltage transformer in the primary andsecondary fusion equipment is very weak，which is easy to be interfered by high-order harmonics，resulting inunstable signal transmission. In order to solve these problems，a high-order and high-precision filter...
更多Number of views：726 Amount of downloads：448
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XU Junyue，LIU Yi，GUI Jiae
Abstract: Aiming at the problems of three-phase load imbalance，power quality degradation and harmonicdispersion in current electronic power distribution system，a comprehensive power quality control scheme with fastdynamic response and small output harmonic was proposed，which includes comprehensive control mode andco...
更多Number of views：573 Amount of downloads：484
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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：594 Amount of downloads：513
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HAN Song，YU Zhiqiang，WANG Mingyue，YU Hongze，JIA Pengfei
Abstract: Under the background of carbon emission reduction，fully controlled power device IGBT is widelyused in various of converters with its excellent performance，effective and reliable drive circuit is crucial to the safeoperation of IGBT，especially for high-power applications. Aiming at the requirement of flexib...
更多Number of views：515 Amount of downloads：333
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LIANG Zhen，WANG Yong，BAI Haibin，ZHANG Zhiyu，SUN Qianhao，CUI Bin
Abstract: Based on full-bridge（FB）and half-bridge（HB）sub-modules（SMs），the conventional hybridmodular multievel converter（MMC）is a typical topology of MMC with DC fault clearing ability. However，theproportion of FB SMs in conventional hybrid MMC is usually greater than 50%，so as to increase the cost andlosses. To sol...
更多Number of views：432 Amount of downloads：406
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TIAN Bin，SUN Quanhui
Abstract: AC/DC switching power supply is the main source of electrical system，its development trend islarge capacity，high power density，high efficiency，low power factor and low harmonic content. However，there are still some common problems with existing digital power supplies，including poor anti-interference abilit...
更多Number of views：648 Amount of downloads：682
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JIAO Jinghai，LI Jie
Abstract: To solve the problem of low identification accuracy of partial discharge（PD）for electric multipleunits ethylene propylene rubber（EPR）cable terminal defects，an on-board cable terminal defect identificationmethod based on improved residual network was proposed. Firstly，cable terminals with four typical insul...
更多Number of views：608 Amount of downloads：466
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ZHANG Di，HUANG Lu，CUI Jing，SONG Zhiwei
Abstract: The AC voltage sensors are used to measure the grid voltage，which brings high hardware cost，difficult installation and low reliability. In order to realize that grid voltage sensors are not necessary，virtual fluxwas introducted to model prediction power control algorithm for cascaded H-bridge rectifier. Th...
更多Number of views：654 Amount of downloads：491
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ZHANG Xiangqian，CHE Chaochang，LI Fengsheng，YU Shipeng，LEI Hui
Abstract: As an important part of power electronic power conversion device，auxiliary power supply is facedwith the application demand of high voltage and wide range in DC transmission，solar power station，wind powerstation and other systems. Aiming at the problems of switch stress，cost and efficiency caused by high v...
更多Number of views：670 Amount of downloads：667
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LAI Guoqing，LAI Qun，LI Ming，FENG Chaokun
Abstract: In the application of renewable energy power generation，multi-input-port power conversion systemis a high cost-effectiveness option. A multi-input-port DC-AC conversion system based on single-stage nonisolatedbuck-boost power conversion cell was propsed . Each type of DC source flows into the full-bridge c...
更多Number of views：620 Amount of downloads：611
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WANG Pengcheng，PAN Ligang，WANG Yijie
Abstract: The emergence of wireless power transmission（WPT）technology overcomes the strict requirementsof traditional wire transmission process on transmission site conditions，maintenance convenience and security，which has a wide range of application scenarios. In the WPT technology，the misalignment tolerance charac...
更多Number of views：601 Amount of downloads：568
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JI Huancong，XIA Chengjun，WANG Zeqing，LAI Shengjie
Abstract: Aiming at the problems of high cost and poor voltage quality in the conventional power distributionscheme of long-distance electrical equipment of rail transit，a technical scheme of DC power distribution for longdistance electrical equipment was proposed to achieve the purpose of improving voltage quality ...
更多Number of views：615 Amount of downloads：664
