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SHI Liguo，LI Yanzhen，LI Yuanfu，GUAN Xuelin，XU Zhigen，ZHANG Mingyuan
Abstract：Three-level neutral-point-clamped（3L-NPC）interconnected converters have been widely used inthe AC-DC hybrid distribution grids due to their superiorities of large capacity and high power quality. However，their working conditions are always with high power，varying load，and limited heat dissipation，etc.，with ...
更多Number of views：1697 Amount of downloads：1100
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ZHANG Guoqiang，NIU Ben，YANG Hua，WANG Gaolin，XU Dianguo
Abstract: Maximum torque per ampere（MTPA）control is one of the important methods to improve theefficiency of sensorless drive system of permanent magnet synchronous motor（PMSM）. In the sensorless drivesystem，the traditional calculation method deduces the analytical solution of the optimal current vector angleaccordi...
更多Number of views：1075 Amount of downloads：1098
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GUO Jiajun，XU Zhi，ZHAI Baoyu，CHEN Yutian，CHEN Junru
Abstract：Aiming at the low voltage ride through（LVRT）problem of the combined grid-connected systemwith new energy-energy storage under the control of the grid-forming converter，an additional voltage limitercontrol scheme based on the traditional LVRT was proposed. Firstly，the shortcomings of the traditional LVRTstra...
更多Number of views：978 Amount of downloads：1092
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MENG Chao，WANG Lianzhi，XIE Min，FU Yichao
Abstract: As the existing system fails to evaluate the process of pushing the power grid dispatch controlinstructions，the push delay and energy loss increase. A feature selection-based automatic push system for power grid dispatch control commands was proposed.According to the characteristics of power grid dispatch ...
更多Number of views：1364 Amount of downloads：1090
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SONG Hui，YUAN Longxiang
Abstract: Aiming at the problem of single hot spot temperature under average state and long response timeunder different load states，in order to improve the response speed，a 10 kV transformer load state detection method based on K-means algorithm was designed. The 10 kV transformer load model was established，the ove...
更多Number of views：1208 Amount of downloads：1087
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XIAO Longhai，FU Ming，JIN Hai
Abstract: Aiming at the problem of power deviation caused by uncertain influence of renewable energy andelectric heating and cooling loads in the integrated energy system（IES）to realize integrated energy system optimaldispatch，a double-layer IES optimal dispatch strategy was proposed by combining the stochastic mode...
更多Number of views：1212 Amount of downloads：1074
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WANG Jiarong，DAI Guanghua，HU Liang，GAO Jingxiang
Abstract: In order to realize the application requirements of SiC power devices，a novel dual edge-triggeredisolated drive circuit was proposed. The circuit have the advantages of full isolation of driving signals，strongdriving ability，wide switching frequency range with 0 Hz～500 kHz signal transmission and strong of...
更多Number of views：1121 Amount of downloads：1072
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LOU Bin，HAI Ying
Abstract：Harmonic loss is one of the main causes of safety accidents in excitation transformers. If the lossvalue is too large，it can easily affect normal substation and transmission. Therefore，a method based on waveletpacket decomposition and reconstruction was proposed to calculate the additional loss of rectifica...
更多Number of views：953 Amount of downloads：1071
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LONG Zhengyu，WANG Xuhong，FAN Shaosheng
Abstract: In view of the traditional wind tower cleaning，painting，maintenance and other operations，therewas a high risk of artificial aerial work. In order to ensure the personal safety of workers and improve workefficiency，a wheeled climbing robot based on load balancing adjustment was designed. By analyzing the fo...
更多Number of views：1103 Amount of downloads：1059
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WANG Yuhao，LIU Haitao，ZHU Kangkai，ZHONG Cong，MA Jiayi
Abstract：With the increased penetration rate of new energy year by year，it is difficult to accurately predictthe randomness and fluctuation characteristics of its output，causing a severe challenge to the operation，planningand scheduling of electrical power system. Therefore，modeling for the uncertainty of new energy...
更多Number of views：1139 Amount of downloads：1055
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XU Yelin，LU Xinqiang，ZHAO Ang，MA Li
Abstract: A cooperative control method for multi-port energy routers in distributed distribution networks wasproposed. Under the premise of power balance and bus voltage stability，seamless switching of various workingmodes of multi-port energy routers was realized to ensure the security and stability of distribution...
更多Number of views：1158 Amount of downloads：1044
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SONG Zhuoran，DOU Wenlei，LI Jianfeng，JIANG Tao，LU Sichen，JI Hansong
Abstract: In order to improve the operation economy of the distribution system with multiple industrial parksand restrain the power fluctuation of the distribution-micro tie line，a multi-time scale optimization schedulingstrategy for the distribution system with multiple industrial parks was proposed based on the ro...
更多Number of views：1021 Amount of downloads：1043
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JIA Dexiang，ZHONG Cheng，LIU Zhanjie，ZHENG Houqing，GUO Yang
Abstract: Photovoltaic（PV）generation usually operates in maximum power point tracking（MPPT）mode，which cannot provide inertia and frequency support for the power system. Virtual synchronous generator（VSG）control is an attractive control method that can provide the similar behavior of synchronous generator（SG）.However...
更多Number of views：1159 Amount of downloads：1040
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WANG Huahan，ZHAO Shiwei
Abstract：A dual active bridge（DAB）DC-DC converter voltage control strategy based on double-integralsliding mode control was proposed，which can obtain good control effect under the condition that the modelaccuracy requirements are low and the controller design process is simple. Firstly，the reduced-order model of the...
更多Number of views：995 Amount of downloads：1036
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CAI Weiliang，CHENG Haifeng，PAN Zhixuan，CHENG Jin，DAI Mingli
Abstract: The grid connection of doubly-fed induction generator（DFIG）leads to the reduction of systemequivalent inertia and primary frequency regulation capacity. With the increase of DFIG grid connection scale，theproblem of system frequency regulation becomes more and more serious. In view of this problem，frequency...
更多Number of views：1035 Amount of downloads：1036
