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SONG Mingxuan，FENG Yuan，ZHANG Tian，HE Fengyou，GAO Jie
Abstract: Aiming at the lack of realtime detection methods of operation status for NPC three-level inverter，anindirect detection method was studied. In this method，the commutation process of NPC three-level inverter wasanalyzed. And according to Kirchhoff's law，the current and voltage models of three-level circu...
更多Number of views：3467 Amount of downloads：4719
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JIN Dan，ZHI Jing，XIN Shijin，YANG Jian，HUANG Yafei，XU Qing
Abstract：Voltage source converter（VSC）connected to weak AC power grid has the risk of small disturbanceinstability. Under the traditional control strategy，VSC has to reduce output power to maintain stable operation. Inorder to improve the stability of the weak grid connected VSC system，first established a universal ...
更多Number of views：1477 Amount of downloads：4709
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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：1777 Amount of downloads：4704
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LI Zhen，ZHAO Pengxiang，WANG Nan，CONG Lin，WANG Huiyuan，CAO Yan
Abstract: Exploring the flexibility of the heat and electricity coupling integrated energy system（HEC-IES），reducing system operation costs and promoting renewable energy consumption are hot issues in the field of energyinternet. Thus，a day-ahead optimal scheduling method of the HEC-IES considering the thermal dynami...
更多Number of views：2273 Amount of downloads：4703
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YUAN Yisheng，HUANG Yikun，CAO Hui，HUANG Zhimin
Abstract：A bidirectional isolated resonant converter with variable mode and wide voltage range wasproposed. The proposed converter has the advantages of BOOST circuit and flyback current feed topology. Byreusing the pre-storage and flyback energy feedback of the resonant inductor，it can improve the gain from thebatt...
更多Number of views：1470 Amount of downloads：4694
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SUN Tao，WANG Tao
Abstract: The semi-bridgeless dual Boost power factor correction（PFC）circuit can obtain higher conversionefficiency without increasing common mode noise，but the return current of the input AC terminal producesadditional losses on the introduced diodes，which reduces the conversion efficiency. The replacement of diode...
更多Number of views：1524 Amount of downloads：4694
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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：1024 Amount of downloads：4690
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LIANG Haisheng
Abstract：In order to further improve the accuracy of fault identification of local abnormal factors indistribution network，a digital twin based fault identification simulation of local abnormal factors in distributionnetwork was proposed. Through real-time acquisition of electrical parameters of distribution network...
更多Number of views：1829 Amount of downloads：4690
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YU Zhongan，CHEN Miao，DING Wensu，LIN Shangrong
Abstract: The traveling wave fault location of traditional double-circuit transmission lines are mainly studiedon the model with symmetric parameters. In order to solve the problem of traveling wave fault location of doublecircuit lines on the same tower with asymmetric parameters in engineering practice，a fault loc...
更多Number of views：3394 Amount of downloads：4688
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ZHOU Wen，YANG Shaobo
Abstract: In the DC microgrid，bus voltage stability is the key to maintain the normal operation of the system.Load switching and distributed micro-source power fluctuations will affect the stability of the DC bus voltage. Tosolve the above problem，a compensation control strategy based on the residual generator was p...
更多Number of views：3283 Amount of downloads：4686
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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：3032 Amount of downloads：4683
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YANG Yidong
Abstract：In the grid load control and planning of distribution network，in order to optimize the grid structureof distribution network，such as line loss，power supply quality and load，a grid load control and planningtechnology based on differential evolution algorithm was proposed. For all kinds of power generation de...
更多Number of views：1529 Amount of downloads：4682
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DAI Yanwen，YU Aiqing
Abstract: In order to improve the reliability of microgrid operation and renewable energy power absorbability，a capacity optimization allocation method of energy storage system based on improved nondominated sortinggenetic algorithm Ⅲ（ NSGA-Ⅲ ）was proposed. Firstly ，a two-layer optimization model of energy storageco...
更多Number of views：3550 Amount of downloads：4682
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JIAO Yingxue，HUANG Xuejin
Abstract: The problem of secondary frequency recovery and active power distribution for AC microgrid（MG）with bounded time delay were studied. A distributed dynamic event triggering control method was proposedfor distributed generator sets. The method used dynamic event triggering mechanism，which could greatly reduce...
更多Number of views：2197 Amount of downloads：4681
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WU Xiangyu，XUN Chao，XIAO Fen，LIN Keyao，LIN Chaoqun，CHEN Bojian
Abstract: Existing long-term electricity consumption prediction methods are difficult to solve the problem ofvariable selection，which leads to inaccurate prediction results of power consumption. Therefore，combining theradio frequency variable selection in random forest（RF）algorithm with long short-term memory（LSTM）r...
更多Number of views：2161 Amount of downloads：4679
