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DAI Hui,LIU Yuxiang,LI Guorun,WANG Jianyuan,LIU Jingwen,TAN Wanqi
Abstract:Three port converter(TPC)has the characteristics of high integration,high power density andsingle-stage conversion between ports,but at the same time,the energy flow is affected by the interaction ofmultiple variables. Model predictive control(MPC)was introduced to optimize the dynamic response of outputvol...
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Number of views:1629 Amount of downloads:3218
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ZHU Changlin,TU Qunzhang,JIANG Chengming,WANG Shijiao
Abstract:The synchronization accuracy of a multi-motor speed synchronization system is influenced by themotor control algorithm and synchronization control strategy. In response to the shortcomings of existing controlstrategies,a mid-range deviation coupling control strategy for multi-motor speed synchronization sys...
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Number of views:1623 Amount of downloads:4402
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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:1621 Amount of downloads:3116
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CHEN Xiaoru,HUANG Longyi,LAI Shengjie,YANG Mingjia,WANG Zeqing,XIA Chengjun
Abstract:The circulating current of metal sheath in high voltage cable is the superposition of induced currentcomponent and leakage current component. At present,the calculation of induced current component is relativelymature,but the calculation of leakage current component is insufficient,which affects the final c...
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Number of views:1615 Amount of downloads:2770
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JIANG Jingwen,ZHOU Jiemin,HONG Feng,ZHENG Gang
Abstract: On the basis of LLC,considering from the perspectives of soft-switching technology,DC/DCcascade converter technology and three-level technology,a new DC/DC composite cascade structure topology onthe basis of Buck-LLC structure was proposed. A 980 W prototype was designed and built for verification,whichpro...
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Number of views:1611 Amount of downloads:2582
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WU Bing,WANG Jianliang
Abstract:The common-mode equivalent circuit model of the motor is the basis for analyzing the electricerosion of bearings,especially for analyzing the technical problems and experimental phenomena of shaft voltageand shaft current,among which the centralized equivalent model is an important calculation basis for the...
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Number of views:1610 Amount of downloads:4223
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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...
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Number of views:1610 Amount of downloads:3132
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WANG Yuning,YANG Chengshun,HUANG Xiaoning
Abstract:In response to the poor disturbance rejection performance and issues of parameter perturbation andcontrol precision in traditional control strategies for interior permanent magnet synchronous motors (IPMSM),afuzzy sliding mode control strategy based on the super-twisting disturbance observer was proposed. T...
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Number of views:1604 Amount of downloads:4379
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LI Shengnan,HE Tingyi,HE Xin,HE Peng,ZHANG Yongchang,ZHANG Shengan
Abstract:During the joint operation of permanent magnet direct drive wind power generation systems,thechanges in motor side parameters may cause problems such as reduce control accuracy and stability on the machineside,which in turn affects the DC bus voltage of the converter,leading to power fluctuations on the gri...
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Number of views:1603 Amount of downloads:4700
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ZHOU Jinwei,DING Dawei,JIANG Xuexiang,REN Zhaoting,LI Xizhi
Abstract:Maximum torque per ampere(MTPA)control can effectively improve system efficiency throughreducing copper loss,which is suitable for air conditioning permanent magnet compressor system. However,due to the inverter non-ideal characteristics,the tracking accuracy of the optimal current vector angle decreases. T...
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Number of views:1600 Amount of downloads:2791
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YAN Yulin,XIAYankun,LIU Liyou
Abstract: In order to achieve equal current, a constant current source should be used to drive the LEDs. Aconstant current source based on two output Cuk improved circuits was proposed. The circuit structure, workingmode and constant current principle were analyzed, and the voltage, current and power expressions wer...
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Number of views:1596 Amount of downloads:2859
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HU Junhua,WEI Huabing,FUYinfang,QIAOMin,GAO Baolong
Abstract: The safety monitoring of existing ultra-high voltage direct current(UHVDC)converter stationsmostly adopts manual on-site detection,which presents major safety hazards and high labor costs. In order to meetthe safety needs of the power transmission system,a multi-angle joint monitoring system was designed f...
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Number of views:1596 Amount of downloads:5107
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LI Xinhai,FAN Dehe,MENG Chenxu,ZENG Lingcheng,YUANTuolai
Abstract: Due to various environmental factors,the relay platen status recognition needs manual inspection fora long time,and the current popular platen image recognition program requires a huge background computingarchitecture,which can not immediately obtain the verification information in the operation site,and s...
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Number of views:1595 Amount of downloads:4757
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KANG Jiale,ZHOU Xuntian,ZHANG Zhigang,CEN Yinwei
Abstract: In order to improve the utilization rate of clean energy and promote the stable and low-carbonoperation of the microgrid,a low-carbon optimal dispatching model based on load side flexible resources wasestablished. According to the flexibility resource analysis,the flexibility resource modeling of load side...
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Number of views:1595 Amount of downloads:2974
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WANG Wenyuan,LUO Zhiwei,XIA Huan,CHEN Jie
Abstract:The modeling of distributed power sources in DC microgrids serves as the foundation for large-scalepower system simulations. However,the difficulty in obtaining electromagnetic parameters of diesel generatorshampers the accuracy of their electrical characteristic modeling. To address this issue,a data-drive...
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Number of views:1590 Amount of downloads:4730