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LI Zhe,LI Chengyuan,YUAN Yuan,CHEN Yujie,WANG Ziman
Abstract: Insulated gate bipolar transistor(IGBT)is widely used in the industry,but the IGBT junctiontemperature is easily affected by changes in operating conditions and the heat dissipation environment in which it islocated. Poor heat dissipation channels will cause the IGBT module to remain in a high temperature ...
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Number of views:3771 Amount of downloads:6331
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WANG Jianglei,FAN Xiaochao,SHI Ruijing,WANG Weiqing,LI Wenliang,XIONG Ruifeng
Abstract: The "double carbon" goal promotes the development of China's energy sector in the direction ofgreen,low-carbon,safe and efficient. In order to improve the penetration of renewable energy such as scenery,stabilize the diversified load fluctuation on the user side,improve energy utilization efficiency an...
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Number of views:2158 Amount of downloads:6329
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LI Qi,ZHANGTaoyun
Abstract: With the advancement of China's energy internet strategy,edge calculation has become an effectivemode to solve the data processing of energy internet. Aiming at the problems of chaotic storage and poor fusion ofheterogeneous power distribution and power data in energy internet,the multi-source data pro...
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Number of views:4412 Amount of downloads:6325
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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 ...
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Number of views:1790 Amount of downloads:6321
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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...
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Number of views:2148 Amount of downloads:6320
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GU Ming,XING Meng,GE Xianjun
Abstract: Aiming at the complex problem of weight factors tuning when the induction motor driving systemadopts the finite set model predictive control,an optimal finite set model predictive controller without weightdistribution for induction motor driving system was designed. In the new scheme,the form of sequential...
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Number of views:5052 Amount of downloads:6319
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HAO Liangshou,XIA Kepeng,CHEN Xiaoping,JIANG Hai,ZHU Qi,WANG Di
Abstract: The conventional grid voltage observation methods of flexible DC power converters need to designmultiple observers,and use multiple filters,which are also affected by DC-offset. So,a grid voltage observationmethod of flexible DC power converters based on single sliding mode observer and single third-order ...
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Number of views:2049 Amount of downloads:6318
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GAO Geming,YE Manhong,LIU Yanan,XU Hongqi,CHEN Fan
Abstract:Aiming at the problems of difficult identification of stacked outliers and insufficient extraction ofraw data features in the data-driven ultra-short-term power prediction of wind turbines,a prediction methodcombining data cleaning and parallel spatio-temporal neural network was proposed. First,a combined d...
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Number of views:1398 Amount of downloads:6307
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HAN Jianfu,XIAO Chun,SONG Xiaobing,LU Jiansheng,WANG Feifei
Abstract: With the continuous advancement of China's energy Internet strategy,how to reduce the occurrenceof electricity theft has become a focus of research. The historical data of electricity consumption was processed andanalyzed,and the data of electricity consumption were processed and converted to realize t...
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Number of views:4596 Amount of downloads:6306
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SHEN Yuming,GUI Xu,JIANG Guifen,XU Jiayin,FENG Peiru,LI Kun
Abstract:As the penetration rate of new energy in the power system continues to increase,the large-scale gridconnection of wind power is one of the important factors affecting the stable frequency operation of the powersystem. Configuring energy storage can provide transient frequency support for the system,improve ...
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Number of views:1897 Amount of downloads:6302
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SHEN Gaobo,LIU Xu
Abstract: A variable flux reluctance machine(VFRM)control system based on the excitation current controlof a single leg was proposed. Compared with the VFRM control system based on the H-bridge which controlling theexcitation current,fewer switch devices were used,in which the cost of the inverter was reduced while ...
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Number of views:5003 Amount of downloads:6298
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CHEN Sisi,LI Zhigang,ZHENG Jiehui
Abstract:The energy flow analysis method with both high precision and high computational efficiency is abasic tool to simulate the operation and analyze the interaction between the thermal and electric coupling systems.The traditional iterative numerical method is slow in computation,poor in computability for large-...
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Number of views:1736 Amount of downloads:6294
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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...
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Number of views:2042 Amount of downloads:6288
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ZHAO Enlai,HU Yu,GUO Jun,SU Xinlei,LIU Pengyuan,YANG Jun
Abstract:In view of the fact that the original high-dimensional nonlinear power flow model cannot be appliedto the linear planning of distribution network,and the existing linear power flow model has the problem of weakuniversality,a calculation method of distribution network linear power flow was proposed consideri...
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Number of views:1618 Amount of downloads:6278
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WANG Yanjie,LIN Chaobin,XU Guozhi,LI Qingyao,ZHANG Zhenye,HU Kun
Abstract:To adapt to the construction of a novel power system with new energy as the main body,it isnecessary to continuously improve the new energy consumption capacity of various voltage-level power grids.Through the research on the influencing factors and improvement methods of new energy consumption capacity ofd...
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Number of views:1797 Amount of downloads:6276