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HUANG Guanglei,TIAN Qidong,LIN Zhixian,ZHENG Weinan,XU Te,LI Bingran
Abstract:Due to the extensive addition of new energy systems,the number and types of power qualitydisturbances in the system are also increased accordingly. However,the traditional power quality disturbance(PQD)classification method has the problem of low accuracy and efficiency,and it is difficult to adapt to theex...
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Number of views:1322 Amount of downloads:2407
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YANG Guotao,HU Dongfang,ZHANG Jiaming,WEN Liqiang,TIAN Lisi
Abstract:Space vector pulse width modulation(SVPWM)strategy is one of the key technologies for threelevelinverters. However,conventional three-level SVPWM often experiences neutral point potential(NPP)oscillation and high switching loss when addressing the neutral point potential balancing issue. To tackle thischall...
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Number of views:1317 Amount of downloads:3330
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WEI Xin,LI Yubo,ZHANG Yun
Abstract:Currently,the optimal modulation strategies for SS resonant networks under different operatingconditions have not been fully explored. Therefore,the optimal modulation strategy of SS resonant network wasinvestigated in low-power situations to improve the transmission efficiency and charging stability of the...
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Number of views:1313 Amount of downloads:6300
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ZHANG Xudong,WANG Yangyang,LI Xiaolong,LÜ Jin
Abstract:Aiming at the problem that the ripple content of current and voltage in cycloconverter speed controlsystem is large and the ripple period is time-varying,the real-time sampling value is not suited for feeding back tothe speed control system directly,a variable period mean sampling algorithm was proposed. Fi...
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Number of views:1311 Amount of downloads:2835
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SHEN Zhangliang,CHEN Yini,LI Haomin,LIU Zihao,MA Hongzhong,GE Xuanhao
Abstract:A fault diagnosis model for isolation switches based on Markov transition field(MTF),catch fishoptimization algorithm(CFOA)improved pyramid vision transformer(PVT)was proposed to address theproblems of complex fault situations,strong noise in signal extraction,and insufficient feature extraction. Firstly,th...
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Number of views:1309 Amount of downloads:3747
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YOU Hanwen,CHEN Xi
Abstract:A modeling method based on fractional calculus was proposed to analyze the working mode of halfbridge LLC resonant converters and the influence of the "parameter drift" of the resonant capacitor on the workingmode of the converters. Then,based on the Oustaloup's filtering algorithm,a simulation model of...
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Number of views:1305 Amount of downloads:4951
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ZHANG Boyu,ZHANG Xiaoli,FENG Rui,ZHANG Zhaobo,CAI Siqi ,MA Xiaoxuan
Abstract:Based on the principle of magnetic coupling resonance technology,a bilateral LCC topologycompensation network parameter design method was adopted. Firstly,the mathematical model of the main circuitof the bilateral LCC topology was analyzed,and the inductance ratio of the coil self-inductance and the seriesc...
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Number of views:1305 Amount of downloads:3252
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YU Jialin,GUO Jinrui,TU Xiaodong,LIU Weiliang,ZHONG Weidong
Abstract:To address the issue of over/under voltage in the distribution network due to the scale access ofdistributed generators and flexible loads under the "double carbon" target,an active distribution networkscooperative voltage control strategy based on the active support of electric vehicles(EVs)aggregation wasp...
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Number of views:1305 Amount of downloads:2821
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LI Lingqi,CHENG Zhijiang,GUO Shaokang,XIAO Shihao ,CHEN Xingzhi
Abstract: Aiming at the problem of wind abandonment caused by the contradiction between wind and heatduring the winter heating in the Three-north areas of China,a scheduling strategy for electric heating combinedsystem considering wind power consumption was proposed. Firstly,the "power determined by heat" constraint...
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Number of views:1299 Amount of downloads:2944
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YIN Qiyun,YANG Chen,LU Hongjian,ZHAO Xinyang,AN Yanjie,CHEN Haoyang
Abstract: Aiming at clarifying the interference effect of 5G electromagnetic radiation on relay protection andcommunication control equipment in converter station,a microstrip antenna simulation model with a centerfrequency of 3.5 GHz was established. Firstly,the propagation and attenuation law of electromagnetic ra...
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Number of views:1299 Amount of downloads:2846
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LI Gang,XU Bin,WANG Xiaoming,ZHAO Wenguang,FANG Zhao,WU Hongbin
Abstract: The distributed control strategy of the distribution network with distributed generation is expected tosolve the voltage control problem of the distribution network. However,distributed generation are loosely distributed in space,and communication problems such as communication delay and packet loss betwee...
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Number of views:1293 Amount of downloads:2777
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ZHANG Chunli,LIU Hongwen,FANG Pengxing,CHAI Chenchao,ZHANG Wenqiong
Abstract:Incidents such as the burning of electromagnetic voltage transformers(PT),damage to primaryharmonic suppressors,and fuse tripping occur frequently in low and medium voltage distribution systems due toferroresonance,severely affecting the safe and stable operation of the system. Therefore,through theoretical...
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Number of views:1292 Amount of downloads:3785
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FENG Xiang,YU Yue,LI Cheng,ZHENG Wei,LIU Jianhua
Abstract:The traditional ultra high speed permanent magnet synchronous motor(PMSM)driver uses PWMequivalent sine voltage output,which leads to severe motor heating due to large harmonics,and it cannot be used in situations where the input voltage changes over a large range,such as fuel cells. To reduce the heat gene...
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Number of views:1284 Amount of downloads:2566
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WANG Mingyue,HE Yongpeng,YU Zhiqiang,ZHANG Zhonglei,YU Hongze
Abstract:Because of crystal oscillator error,inter-symbol interference and baseline drift in industrial opticalfiber communication,the optical fiber receiver has the problem of high error rate of data recovery. In long-distanceindustrial communication,the electrical level jitter of serial data at the receiver will i...
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Number of views:1282 Amount of downloads:3939
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DANG Yihan,XU Chuanfang,WANG Shaozu
Abstract:Usually,the DC side of the traction rectifier requires a series LC resonant circuit to filter out thepulsating component of 2 times the grid frequency. When the resonant inductor on the DC side had a short-circuitfault,the pulsating component would be transferred to the motor side,the problems such as torque...
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Number of views:1280 Amount of downloads:4249