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YIN Zhenhuan
Abstract:Due to the advantages of faster dynamic performance and smaller torque ripple,high frequencypulse voltage injection(PSVI)is widely used in sensorless control of permanent magnet synchronous motor(PMSM)at low-speed range. Under low switching frequency,the dynamic and steady performance of thetraditional high...
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Number of views:1647 Amount of downloads:3431
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MAO Fang,MIAO Xinzhao,LIANG Qianyuan,TANG Fangwen
Abstract:Compared to partial life cycle assessment,the full life cycle assessment is more complex anduncertain,with the difficulty of comprehensively considering carbon emissions and their multiple influencingfactors at each stage,resulting in fuzzy assessment boundaries and dynamic repetition of the process. To thi...
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Number of views:1354 Amount of downloads:3421
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WANG Baihuai,WUTong,ZHANGWeizheng,FANG Xuezhen,LIYingzhi
Abstract: In order to enhance the stability of power grid operation and improve power supply capacity of powergrid,a power supply capacity simulation method based on harmonic reactive compensation was proposed. Theharmonic data in the power network equipment was calculated through DIgSILENT/PowerFactory software,inc...
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Number of views:4318 Amount of downloads:3418
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LONG Zhengyu,WANG Xuhong,FAN Shaosheng
Abstract: In view of the traditional wind tower cleaning,painting,maintenance and other operations,therewas a high risk of artificial aerial work. In order to ensure the personal safety of workers and improve workefficiency,a wheeled climbing robot based on load balancing adjustment was designed. By analyzing the fo...
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Number of views:1841 Amount of downloads:3413
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YIN Yongliang,WU Qiong,ZHANG Jianping,ZHANG Heng,CHENG Haozhong,ZHANG Xiaohu
Abstract: With the increasing scale of wind power installation and grid connection,the interconnection ofpower grids through tie lines can absorb wind power in a wider range,but the uncertainty of wind power output leads to an increase in the risk of system operation. Conditional value-at-risk(CVaR)was introduced in...
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Number of views:3035 Amount of downloads:3413
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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:1112 Amount of downloads:3409
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SU Le,CHENG Jing,WANG Weiqing
Abstract: In recent years,the broadband oscillation of power system caused by new energy grid-connectedoccurs frequently. As an important part of new energy,photovoltaic power station can't be ignored. In order toexplore the broadband oscillation of photovoltaic grid-connected,a detailed linear mathematical mode...
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Number of views:1458 Amount of downloads:3404
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GU Jiming,SONG Yunting,LIU Xinyu,ZHU Shaoxuan,LEI Yu,ZHANG Tongzun
Abstract:Under the dual carbon background of AC and DC hybrid power grids have the new feature of"strong HVDC and weak AC system" and power electronization,in order to effectively reduce the risk of largescalepower outages in power grid,it is necessary to build a secure and reliable comprehensive defense system toen...
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Number of views:1864 Amount of downloads:3400
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WAN Shaoqi,WANG Bo,GUAN Wenqing,CHEN Jingbo,LÜ Congxin,DONG Haiying
Abstract:The traditional control of electromechanical actuator in aviation electromechanical servo systemmostly adopts two-level inverter and PID control,which can not achieve higher precision control of permanentmagnet synchronous motor. In view of the above problems and the difficulty of space vector modulation al...
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Number of views:1432 Amount of downloads:3391
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YANG Xinai,LI Bingran
Abstract: A dispatchable droop control method for multiple distributed generators which can be applied inislanded AC microgrids was proposed. In the proposed method,the first-order inertia elements was utilized toachieve pseudo hierarchical control so that the distributed generator(DG)could share the load automatica...
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Number of views:4004 Amount of downloads:3391
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MA Baohui
Number of views:5904 Amount of downloads:3390
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YAN Hao,BA Sang,GU Yi
Abstract: Insulation failure can cause motor turn-to-turn,phase-to-ground and ground-to-ground faults,ranging from equipment downtime,or endangering personal safety,resulting in catastrophic consequences. In order to be able to carry out online sensitive monitoring of the deterioration state in the early stage of tu...
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Number of views:4273 Amount of downloads:3389
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YUE Xuelei,WANG Lei,TIAN Di,XU Kelei
Abstract: Permanent magnet synchronous motor(PMSM)has become the development direction of the newgeneration of rail transit traction system due to its characteristics of high efficiency and high power density. Amongthem,the research on the identification method of the initial position and frequency of the motor roto...
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Number of views:1694 Amount of downloads:3382
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ZHOU Zhen,PENG Yuanxiu,LIU Bin,LI Xiaowen,ZHA Haitao
Abstract: In the isolated island operation mode of microgrid,the output power of distributed generation unitsin the system is difficult to distribute reasonably due to the difference of output line impedance,which affects thestability of the system. In order to realize the reasonable distribution of power according ...
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Number of views:3846 Amount of downloads:3381
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NIU Shengsuo,WU Zhenan,HUANG Shengpo
Abstract: The test of the internal cable conductivity of the traditional bullet train is time-consuming andlaborious,which increases the probability of false detection,seriously affects the accuracy and reliability of cabledetection results of bullet trains,and greatly reduces the safety and stability of bullet trai...
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Number of views:4123 Amount of downloads:3378