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ZHOU Jiabin,CHEN Yufe,GU Zhaoliang,YONG Jun,ZHAO Wenbin,JIANG Pengliang
Abstract: The influence of magnetic bias current on the excitation characteristics of near-field transformers inthe DC grounding electrode from bipolar to unipolar earth mode was discussed. Based on the principle of field-circuit coupling,the DC magnetic bias co-simulation model of transformer was established and an...
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Number of views:5767 Amount of downloads:9636
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FU Wenqi,HUANG Yongzhang,YANG Xin,GUAN Fei,GU Yujun
Abstract: The integration of large-scale renewable energy source causes the reduction of rotational inertia inpower systems. A motor-generator pair(MGP)can provide a real inertial response(IR)capability without delay forrenewable energy generations. The electrical-mechanical model of the MGP was established based on...
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Number of views:5765 Amount of downloads:7160
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LÜ Chao,JIA Junqing,ZHOU Jia,WU Tianyu
Abstract: The rapid development of artificial intelligence algorithm and edge computing technology has laid afoundation for the development of a new type of over-voltage identification device of distribution network withhigher identification rate and stronger intelligence. A design method of hardware and software sy...
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Number of views:5747 Amount of downloads:8486
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ZHOU Liying,XIA Changhao
Abstract: Three-phase bridge converters(TPBC)are widely used in low-voltage power distribution networksto compensate the negative-sequence current and the reactive current. Because of the relatively high costs,improving the compensation effect of limited capacity equipment has high economic value and research signif...
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Number of views:5745 Amount of downloads:9015
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MAO Shufan
Abstract: An automatic compensation method was presented based on adaptive capacitance regulationtechnology and the principle of controlling capacitor charging and discharging voltage. Based on the turn off ability of the self-turn off device,a switch circuit composed of two self-turning off devices connected in rev...
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Number of views:5733 Amount of downloads:8218
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CHEN Huabin,LIU Wei,XIANG Dening,CHEN Ying
Abstract: To control the induction motor stably under the condition of uncertain disturbances,an inductionmotor speed control method based on robust sliding mode control and field oriented control was proposed based on switching gain adaptive technology. By introducing the switch adaptive gain and integrator interpo...
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Number of views:5728 Amount of downloads:9775
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LI Qi,CHEN Yihua,GUO Bin,ZHANG Deliang,GUO Shaoqing
Abstract: In order to solve the contradiction between the maximum consumption of new energy and thereserved power flow margin of operation section,a day-ahead coordination optimization method for complexcascaded power grid based on key section identification was proposed to achieve the orderly coordination among the...
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Number of views:5725 Amount of downloads:8572
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LIU Jinchao,DUAN Hongmin,WU Letao,LIU Ligang,XU Chao
Abstract: Aiming at the phenomenon of pressure relief and deflagration caused by the faults of oil-immersedtransformer,a logic was proposed that the transformer can keep self-maintained running when faults occurred,and according to the logic,a scheme of oil circuit equipment was designed. The above logic and the sch...
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Number of views:5718 Amount of downloads:7601
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LI Dexiang,LU Jiayu,GE Wenqing,LI Bo,TAN Cao
Abstract: Aiming at the problems of high control performance and long design cycle of electromagnetic linearactuator control parameters,a multi-objective optimization design method of control parameters was proposed.Based on electromagnetic linear actuator system,a robust controller was designed. The controller para...
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Number of views:5700 Amount of downloads:8811
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FENG Qiao,WANG Na
Abstract: In order to improve the control performance of permanent magnet synchronous motor(PMSM)servosystem,weaken the influence of uncertainty in the system,and solve the chattering problem in traditional SMCtechnology,a dynamic sliding mode control(DSMC)method was proposed. Firstly,based on the PMSMmathematical m...
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Number of views:5696 Amount of downloads:8775
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XU Zhenyu,LI Shuai,CHEN Yong,WANG Wenna
Abstract: Electromagnetic radiation affects the development of the wireless charging technologies for electricvehicles.Amethod for reducing the radiation was proposed during the procedure of the wireless charging compared to the existing schemes from the viewpoint of hardware design,software implementation,simulatio...
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Number of views:5695 Amount of downloads:8572
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JIA Junqing,LÜ Chao,LIU Dinghua,XU Hao
Abstract: With the rapid development of artificial intelligence algorithms,convolutional neural networks withfewer layers have been used in distribution network overvoltage recognition. The deep-level network has a higherrecognition rate,but requires a large number of data samples. At present,the amount of data in t...
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Number of views:5688 Amount of downloads:9401
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ZHANG Lantao,XIONG Jun,NIU Xiaonan,HUANG Xiaoyu
Abstract: Aiming at the reliability problem of high-power IGBT modules under short circuit extreme operatingconditions,the power terminals imbalanced current of IGBT modules and the resulting dynamic junctiontemperature change were comprehensively analyzed. Firstly,the current sharing characteristics of parallel ter...
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Number of views:5685 Amount of downloads:9626
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SUN Lihua,ZHANG Lin,SUN Huiqin,GUO Yingjun,LI Zheng,GUO Tianliang
Abstract: The switched reluctance motor control system for electric vehicles includes motor drive and batterycharging circuit,which reduces system integration and power density. Based on the asymmetric half-bridge powerconverter of switched reluctance motor,an integrated power converter for electric vehicle was desi...
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Number of views:5684 Amount of downloads:8640
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XU Rui,PAN Sanbo
Abstract: Aiming at the problem that the application of multi-step model predictive control(MPC)to invertercontrol results in a doubling of the number of solutions to lead to computational difficulties,an MPC strategy basedon the improved spherical decoding algorithm was introduced. In the control strategy,the optim...
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Number of views:5683 Amount of downloads:8786