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ZHOU Xuesong，GUO Kairui，MAYoujie，ZHONG Weibao
Abstract: Although the parallel connection of inverters in a microgrid system increases the system capacity，itcreates a circulation path which provides the conditions for the generation of zero-sequence circulating current（ZSCC）. In order to solve the problem of system loss caused by ZSCC，a ZSCC controller was desig...
更多Number of views：3084 Amount of downloads：3084
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SHEN Zhangliang，CHEN Yini，LI Haomin，LIU Zihao，MA Hongzhong，GE Xuanhao
Abstract：A fault diagnosis model for isolation switches based on Markov transition field（MTF），catch fishoptimization algorithm（CFOA）improved pyramid vision transformer（PVT）was proposed to address theproblems of complex fault situations，strong noise in signal extraction，and insufficient feature extraction. Firstly，th...
更多Number of views：1151 Amount of downloads：3079
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ZHOU Qun，XIA Haogang，CAI Xiyu，LIN Dong，YAN Tiesheng
Abstract：The amplitudes of strong pull-in current and hold-on current passing through the high speedsolenoid valve were regulated accurately by using hysteresis control to realize pulse width modulation of thevoltage of fast solenoid valve，the duty cycle of the current pulse passing through the high speed solenoid v...
更多Number of views：1325 Amount of downloads：3075
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FANG Biwu，XIAO Liang ，SUN Cheng，CHEN Yiping，XUE Yanjun，ZHANG Deliang
Abstract: In order to improve the absorption capacity of clean energy and make full use of the peak regulationresources of each province，the peak regulation capacity of different types of power sources was studied，and aregional power grid optimization dispatching method considering the mutual aid of peak regulation ...
更多Number of views：3941 Amount of downloads：3074
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CHEN Guoping，WANG Juan，LIANG Zhen，ZHANG Zhiyu，BAI Haibin，SUN Qianhao
Abstract: The full fault-blocking converter（FFBC）-based DC power distribution network is an importantdirection of the power system with source-load-storage interaction. Since there is no DC breaker in FFBC-DCpower distribution network，the start-up，mode switching and fault handling control strategies of FFBC-DC power...
更多Number of views：2623 Amount of downloads：3065
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TIAN Jiabin，YANG Chuanjiang，LI Junda，GU Jiateng，ZHANG Zhenbin
Abstract: The doubly-fed induction generator（DFIG）is the mainstream model in the wind power market.Since there are multiple time-scale control objectives in the wind turbine，it is difficult for conventional linearcontrol methods to optimize the multi-objective. Model predictive control（MPC）is an effective method for...
更多Number of views：1634 Amount of downloads：3058
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LIU Xinglong，XIE Yihan，YANG Ziyang，ZHANG Zhilong，YI Hao，ZHUO Fang
Abstract：Active power filters（APF）are widely used for dynamic compensation of power system harmonic.However，under weak grid conditions，the interaction between APF，nonlinear loads and grid impedance can easily lead to the stability issue of harmonic oscillation around the compensation frequency，resulting in the fault...
更多Number of views：1827 Amount of downloads：3057
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ZHOU Jie，ZHAO Shiwei，WU Yihao，YANG Xiangyu
Abstract：In order to optimize the current stress of dual active bridge（DAB）converter，an improved dualphase shift（IDPS）modulation was proposed based on the traditional dual phase shift（DPS）modulation. Firstly，the working principle of IDPS modulation was introduced，its steady-state working characteristics were analyze...
更多Number of views：1822 Amount of downloads：3057
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GAI Zhiqiang，XUE Bin，LIYajie
Abstract: The traditional fault location method lack effective fault location process，which leads to the increaseof ranging error，fault location time and complexity. In order to effectively solve the above problems，a new faultlocation method for multi-power distribution network based on traveling wave theory was des...
更多Number of views：4025 Amount of downloads：3048
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LIU Jinchao，DUAN Hongmin，WU Letao，LIU Ligang，XU Chao
Abstract: Aiming at the phenomenon of pressure relief and deflagration caused by the faults of oil-immersedtransformer，a logic was proposed that the transformer can keep self-maintained running when faults occurred，and according to the logic，a scheme of oil circuit equipment was designed. The above logic and the sch...
更多Number of views：4480 Amount of downloads：3047
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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：3287 Amount of downloads：3042
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WANG Yubo，AN Yang，QIU Shuming，GAO Zhuoxuan，SUN Furun
Abstract：Inverter products have been developing towards higher power density and more compact structure.To enhance the power density of inverter systems within a limited structural space，several prototypes need to bemade and a large number of experiments conducted during the research and development process. To shor...
更多Number of views：1655 Amount of downloads：3036
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ZHAO Jingjing，CHEN Linghan
Abstract: The penetration rate of renewable energy in the island AC microgrid was relatively high，and itssystem inertia was relatively low. The primary frequency regulation during island operation mainly relies onequipment such as diesel engines and energy storage. Using the fast adjustment characteristics of energy...
更多Number of views：1966 Amount of downloads：3036
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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：3366 Amount of downloads：3035
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GU Laiqiang
Abstract：The traditional three-phase pulse width modulation（PWM）rectifier requires six power switches.Due to the shoot-through problem between two switches on the same bridge arm，the control difficulty is increasedand overall system design becomes more complicated. A half-controlled three-phase PWM rectifier topolog...
更多Number of views：1235 Amount of downloads：3019
