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LI Xinhai，LUO Qifeng，ZENG Qingzhu，ZENG Xinxiong，YAN Chao
Abstract：The detection of composite insulator defects in substations still relies on inspection by operators，which is a heavy workload and prone to leakage due to visual fatigue. To reduce the computational resourceconsumption and shorten the training time，the region convolutional neural networks（RCNN）was improved b...
更多Number of views：314 Amount of downloads：203
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QIN Gang，ZHANG Changqing，JIANG Xuejiao，ZHONG Lei，ZHOU Chaojun，WU Min
Abstract：During the operation of high-voltage DC power grid，due to factors such as load characteristics andvoltage fluctuations，the instantaneous power characteristics such as capacitor current and harmonics are morecomplex，which increases the difficulty of identifying faults in the power grid system. Therefore，a bi...
更多Number of views：296 Amount of downloads：203
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CHEN Chen，DONG Pingxian，SONG Xiaofan，GUO Fang，QI Huanruo，DU Xiaotong
Abstract：After the distributed wind farm stations are integrated into the distribution network，due to thecharacteristics of wind farm short-circuit current amplitude control and frequency offset，the traditional three-stagecurrent protection of distribution network is difficult to accurately identify the fault on the...
更多Number of views：287 Amount of downloads：181
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CHEN Zheng，WU Yangjin，HUANG Dingjie，WANG Chaojun，FU Xinhui
Abstract：Under the background of limited resources and time，equipment maintenance is considered as aneffective way to maintain the stable operation of the system. In order to allocate maintenance resources efficiently，the most critical equipment in the system should be identified first namely those that will cause s...
更多Number of views：513 Amount of downloads：383
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JING Weiwei，FU Hui，ZHENG Xian，LI Shuangwei，SHI Mingming，ZENG jiang
Abstract：With the accelerated construction of new power system，the harmonic characteristics of power gridare becoming more and more complex. It is of great significance to study the effective statistical management ofharmonic data for evaluating the power quality of power grid. A statistical method of harmonic evalu...
更多Number of views：510 Amount of downloads：377
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LI Nengjun，YANG Haicheng，XU Xianke，LI Shushan，GAO Yuling
Abstract：The state of the DC system of substation is directly related to the normal operation of the substation.A new method for ground fault detection in substation DC systems，which is a combination of double-tree complexwavelet transform and singular value decomposition，was proposed to achieve fast and accurate lo...
更多Number of views：454 Amount of downloads：378
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WANG Chunhui，QU Xiaowei，WANG Mingyue，HAN Song，LI Teng
Abstract：In order to improve the debugging and fault monitoring and analysis capabilities of inverterproducts，the design scheme of network version process data acquisition and analysis software was proposed.Thecomposition and implementation of the software system were discussed，and the technical means such as multit...
更多Number of views：436 Amount of downloads：349
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WU Jiawei
Abstract：Electrically assisted manufacturing（EAM）is a promising and rapidly developing metal processingmethod.The power supply is a key sub-system for EAM，which needs to be designed properly. the model-baseddesign of a low-voltage high-current pulse power supply used for EAM was proposed based on converter-levelelec...
更多Number of views：520 Amount of downloads：384
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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：450 Amount of downloads：455
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XIA Tao，LIU Liang，ZHANG Yangfei，LIU Haitao，MENG Gaojun
Abstract：Aiming at the problem of large output voltage fluctuation and long recovery time of three-phasepulse-width modulation（PWM）rectifiers when the load changes，an improved single-neuron gradient learningcontrol strategy was proposed. Due to the poor adaptability of the traditional PI controller parameters when t...
更多Number of views：433 Amount of downloads：336
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LI Ning，WANG Ruyue，ZHU Longhui
Abstract：In order to analyze the power quality problem of actual power network under the influence ofuncertain interference factors，a power quality detection and recognition method combining empirical wavelettransform（EWT）and improved S-transform was proposed. On the one hand，the frequency，amplitude and timeparamete...
更多Number of views：366 Amount of downloads：265
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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：340 Amount of downloads：266
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PENG Yinzhang，WANG Chen，NAN Dongliang，XIAO Chao，YANG Shuai
Abstract：AC-DC hybrid power grid can balance the power flow during the operation of the power system ina large range，which is conducive to improving the access capacity and access range of large-scale access of newenergy to the power grid，which is an important trend in the development of modern power grid. In order ...
更多Number of views：366 Amount of downloads：298
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JIANG Jian，XU Fengliang，WANG Fayi
Abstract：Reasonable planning of the active distribution network is an important part to improve the windenergy accommodation capability，however，the overuse of the wind power output and load timing characteristicsincrease the difficulty of model solving and have adverse effects on the optimal results. The Latin hyper...
更多Number of views：319 Amount of downloads：264
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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...
更多Number of views：296 Amount of downloads：241
