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ZHOU Liying，XIA Changhao
Abstract: Three-phase bridge converters（TPBC）are widely used in low-voltage power distribution networksto compensate the negative-sequence current and the reactive current. Because of the relatively high costs，improving the compensation effect of limited capacity equipment has high economic value and research signif...
更多Number of views：5947 Amount of downloads：9712
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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：2625 Amount of downloads：9705
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ZHANG Xuyang，ZHANG Maosong，WANG Xiuqin，CHEN Zhong，WANG Qunjing
Abstract：In view of the problem that the transfer branch of the current high-voltage DC circuit breaker mostlyadopts uncontrollable full-bridge transformer coupling energy supply，which is not conducive to controllable andstable power supply，and low energy utilization，a combined DC circuit breaker energy supply metho...
更多Number of views：2506 Amount of downloads：9704
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ZHAO Chencong，XIE Zhouhua，ZHOU Feihang
Abstract：Unbalanced grid voltage will affect the normal grid connection operation of the wind energyconversion system（WECS），resulting in fluctuations in system output power and distortion of output current. Inaddition，in the actual permanent magnet synchronous wind power system，there may be uncertainties in thenetwo...
更多Number of views：2453 Amount of downloads：9701
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GUO Cheng，WANG Linling，HE Mi，YANG Fayu，YANG Xuanming
Abstract：The influence degree of voltage sag on equipment is related to the fault removal time of protectionaction，the magnitude of sag caused by fault and the tolerance ability of equipment sag. The challenge ofconsidering voltage sag factors in the protection setting process is to determine a time setting method b...
更多Number of views：1752 Amount of downloads：9700
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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：3485 Amount of downloads：9679
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CHEN Zhixiu，LIU Yang，ZHANG Hanshu，XIAYe，WANG Hao，LIU Xin
Abstract: In the period of high and new technology development，the application of SiC and other newsemiconductors promotes the development of PCB design toward integration and high efficiency. The new ideas were provided for PCB design optimization from two aspects of high frequency and high density. Among them，ther...
更多Number of views：5661 Amount of downloads：9668
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LI Wei，LUO Cheng，YANG Kai，WANG Xuming，QIU Lingfeng，HUANG Yuhao
Abstract：When the permanent magnet assisted synchronous reluctance motor（PMaSynRM）runs at highspeed with flux-weakening control，the DC bus voltage utilization is not high，and the efficiency and torque output capacity of the motor are low. Therefore，a flux-weakening control strategy of permanent magnet assistedsynchr...
更多Number of views：3097 Amount of downloads：9659
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ZHAN Yubing，TAO Deshun，WANG Changxing，CHEN Liangliang，LIU Hongpeng
Abstract：In order to cope with the impact of large-scale access to new energy sources such as wind power，photovoltaic and electric vehicles on the spatial characteristics of the power grid，a novel dynamic probabilistictrend analysis method was proposed. Firstly，the probability distribution model of wind and light po...
更多Number of views：2163 Amount of downloads：9639
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SHEN Hangyu，FAN Xiaochao，SHI Ruijing，WANG Weiqing， WANG Haiyun，CHENG Zhijiang
Abstract: In order to solve the problem of heat dissipation in the process of producing hydrogen fromelectrolytic water and generating electricity from fuel cells，an independent photohydrogen fuel cell thermoelectriccombined supply system was designed according to the principle of water cooling heat dissipation betw...
更多Number of views：4050 Amount of downloads：9639
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WANG Haijun，WANG Lei
Abstract: Aiming at the problem of active power dispatch and control in the grid-connected power system oflarge-scale wind power clusters（WPC）of distributed wind farms，a hierarchical model predictive control（HMPC）strategy based on dynamic power dispatch was proposed. Firstly，the dispatch framework was divided into f...
更多Number of views：5573 Amount of downloads：9631
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FU Xuhui，FANG Chun'en，XUE Tao，HUANG Leichao，CHEN Junping
Abstract: In order to ensure that the thyristor valve body can be accurately conducted during the solid state switch switching，a solid state switch trigger control unit was designed. Firstly，the structure and working principle of the solid state switch and the structure and function of the trigger control unit were ...
更多Number of views：6318 Amount of downloads：9628
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CHEN Kun，SUN Kaiyuan，LIN Lin，WANG Meng，ZHENG Jiehui，LI Zhigang
Abstract: With the massive access of renewable energy sources and pluralistic load，it is bi-directionalbeneficial to update the distribution network topology. It can not only promote the consumption of renewableenergy and the satisfaction of new load demands，but also improve the rationality of urban distribution net...
更多Number of views：2692 Amount of downloads：9625
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DONG Yue，LI Linwei，LI Feng，ZHAO Xianghua
Abstract：Low frequency transmission was adopted in the sending end of wind power farm，in order to reduceline impedance and charging current of distributed capacitance，improve the static stability limit and transmissioncapacity. Compared with using flexible DC converter valves to send power and connect to grid，modula...
更多Number of views：2124 Amount of downloads：9619
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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：2545 Amount of downloads：9617
