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LI Yanlei，ZHANG Xiaoyang，LI Xiaoling，LIU Wei，WANG Gang，ZHOU Gaowei
Abstract: Because traditional methods have problems such as poor control stability and low control efficiencyin the process of using unmanned aerial vehicle（UAV）to check obstacles in transmission channels，a transmissionchannel unmanned aerial vehicle motor auto-disturbance rejection control technology based on extre...
更多Number of views：3384 Amount of downloads：1896
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CHEN Guangzhu，YANG Yuxin，ZHANG Yanan，LÜ Peihe，WANG Jianquan
Abstract: The new version of the national standard GB/T 15576—2020《Low-voltage reactive powercompensation assemblies》was released on November 19，2020，and has been implemented on June 1，2021，replacing the old standard. Through comparative analysis of the content of the new and old standards and key tests，the test met...
更多Number of views：3369 Amount of downloads：1928
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LI Qi，ZHANGTaoyun
Abstract: With the advancement of China's energy internet strategy，edge calculation has become an effectivemode to solve the data processing of energy internet. Aiming at the problems of chaotic storage and poor fusion ofheterogeneous power distribution and power data in energy internet，the multi-source data pro...
更多Number of views：3350 Amount of downloads：1689
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CAI Chunchen，MAO Xuefei，ZHAO Lei，CHEN Zhen，LI Zhen
Abstract: Aiming at the problems that the working efficiency of ultrasonic motor is too low，which limits theworking endurance of the system and affects the resonant and dynamic characteristics of the motor，a speed andefficiency optimization bivariate control method under dynamic conditions was designed. First，the tw...
更多Number of views：3331 Amount of downloads：1859
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LI Qinzhao，ZHAO Xuemin
Abstract: When the microgrid is operating in island mode，the cascaded H-bridge（CHB）converter as aninterface device may need to be configured with a non-sinusoidal reference wave of pulse width modulation（PWM）when implementing auxiliary functions such as negative sequence compensation. In order to avoid overmodulatio...
更多Number of views：3320 Amount of downloads：2010
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YANG Shihua，CAO Jun，CHEN Liang，CUI Bo，YU Long
Abstract: In order to solve the problems of large calibration error and model reconstruction failure in theoperation of traditional coaling instrument，an improved calibration algorithm based on direct linear transformation model and an improved 3D reconstruction algorithm based on time-of-flight method were proposed...
更多Number of views：3306 Amount of downloads：1653
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CHENG Zhiyuan，WU Longfei，LI Zheng，SUI Licheng，WU Xiaoting
Abstract: Current transformer（CT）inductive energy extraction is the most effective power supply method foronline monitoring equipment of power transmission cables. However，the low current of the transmission cable willcause the CT to fail to obtain energy，which will lead to the occurrence of equipment energy supply ...
更多Number of views：3291 Amount of downloads：1987
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LÜ Wei，WANG Han，ZHANG Jianwen，CHEN Gen，CAI Xu
Abstract: Compared with onshore wind power，the natural conditions at sea are bad and the traffic isinconvenient to maintain the wind power system，so wind power system needs to be highly reliable. The systemreliability can be effectively improved by using fault-tolerant control. A fault-tolerant control strategy by i...
更多Number of views：3279 Amount of downloads：1698
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ZHANG Cheng，HAN Cun，REN Wei，ZHAO Jinlei，ZHANG Xiao，ZHANG Xudong
Abstract: Based on the AC-DC-AC variable frequency speed control system of synchronous motor，theparameters of PI regulator were optimized by chaos particle swarm optimization algorithm. A pseudo-randomsequence generation method was constructed using a chaotic map dynamic integer tent map，and an objective function of...
更多Number of views：3251 Amount of downloads：2053
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LUO Lan，WANG Yuhong，SONG Ruihua，BI Jingtian，CHEN Shiyu，WAN Liangbin
Abstract: In the multi terminal flexible direct current（DC）transmission system，the flexible direct inner andouter loop control can not provide inertial support for the receiving end passive network. Traditional virtualsynchronous generator（TVSG）control can provide inertia support for passive network，but it can only ...
更多Number of views：3246 Amount of downloads：2029
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LIN Xin，GAO Xiang，XIE Zhen，XU Kebao，ZHANG Xing
Abstract: With the increasing proportion of wind turbines，the characteristics of low inertia and weak dampingpower grid become more obvious，which brings new challenges to the smooth operation of power grid. Traditionalcurrent-controlled strategy is difficult to obtain accurate grid synchronization information in wea...
更多Number of views：3214 Amount of downloads：2576
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LIU Siyan
Abstract: In order to realize the speed estimation and speed regulation of the permanent magnet synchronousmotor（PMSM）controller，a new type of fractional-order model reference adaptive speed observer was designed.Compared with integer-order observers，this strategy enhanced the adjustable degrees of freedom of the co...
更多Number of views：3212 Amount of downloads：1868
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JIN Yongchun，CHEN Li，ZOU Yusheng，DUAN Chengwu，YAO Jian
Abstract: Due to the advantages of high efficiency，wide speed range，high torque density and great controlperformance，permanent magnet synchronous motors（PMSM）have been widely used in driving systems of electric vehicles（EVs）. However，as the increase of power density，the problem of temperature rise caused by loss hea...
更多Number of views：3166 Amount of downloads：3479
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WANG Shijun，HAO Quan，LI Wenlong
Abstract: In view of the problems of unstable operation waveforms，high output current stress andinstantaneous fluctuation difference of load in the current sharing control of two-way DC-DC converter in flexiblesubstation，a method of independent current sharing control of two-way DC-DC converter in flexible substatio...
更多Number of views：3130 Amount of downloads：1712
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HUANG Haihong，HUANG Yuwei，LIU Xin
Abstract: Aiming at the requirements of portable DC insulation detection devices，a dynamic differencealgorithm based on single-arm was proposed，and a portable DC insulation detection and verification integratedmachine was designed based on this algorithm. The principle of the single-arm insulation monitoring system ...
更多Number of views：3110 Amount of downloads：1982
