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LU Yibing,LI Feng,ZHAO Wenbin,LU Wu,HUO Simin
Abstract: A power angle control method for DC system with doubly-fed induction generator based on air gapflux vector regulation was presented,which could reveal the relationship between the air gap EMF vector angle andthe stator output power,and could be used to directly control the stator output power. In the propos...
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Number of views:4340 Amount of downloads:3973
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ZHOU Xuesong,XIE Bingjie,MAYoujie,LIU Qian
Abstract: To effectively solve the problem of stable control for DC-bus voltage in the independent photovoltaicenergy storage system under multi-source disturbances,a bidirectional DC-DC converter control scheme based onimproved linear active disturbance rejection control(LADRC)was proposed. The linearized small sig...
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Number of views:4335 Amount of downloads:4019
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GUO Dengke,MI Wentao,ZHUANG Feihu,XU Yiduan,FAN Ruini
Abstract: According to the requirements of quickly and reasonably formulating load transfer measures afterdistribution network failure at this stage,a reliability evaluation scheme for fault transfer based on K-fold verification was introduced. Square up various power supply modes,according to the energy balance equ...
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Number of views:4323 Amount of downloads:3575
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WANG Xiaoyang,ZHAO Jinbin,ZHU Yuxin
Abstract: With more and more renewable energy devices and loads connected to the traditional power grid bypower electronic equipment,the negative resistance characteristics of power electronic equipment lead to the weakinertia characteristics of high power electronic power systems. Therefore,the stability of the mul...
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Number of views:4297 Amount of downloads:4898
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TANG Jiayuan,ZHAO Wenbin,LU Wu,GAO Yuan
Abstract: Under the electric power market environment,the key to achieve the joint operation of virtual powerplants lies in the profit distribution among the internal multi-subjects. To solve the impact of the final profitdistribution,which is caused by the uncertainty of the clean energy output of each main body in...
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Number of views:4291 Amount of downloads:3830
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YANG Zhengdong,SHI Haobo
Abstract: The tracking of the distorted current signal without static error cannot be completed by a single PIcontrol. In order to improve the quality of the grid current,a harmonic compensation method for parallel active filters under extreme loads was proposed. Create the main circuit topology of the parallel acti...
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Number of views:4279 Amount of downloads:4293
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DUAN Huiqin,HUANG Zhiyong,DU Shuping,YAN Tianbi,WEI Yongheng,WEI Hongxing,CHENG Zhuo
Abstract: Bidirectional DC-DC converter is the key equipment to realize the power balance of DC microgrid,and the accurate distribution of load current is one of the main objectives of multi converter parallel control. Aimingat the current sharing problem of bidirectional DC-DC converter,a current sharing control ba...
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Number of views:4268 Amount of downloads:4170
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GAO Yujie,ZHANG Chengrui,DING Xinzhong,LI Huxiu,CHEN Pan
Abstract: In the galvanometer scanner system,the motor should meet the requirement of 2°/200 Hz highfrequency response. It was inappropriate to utilize PID controller under the demands of small-inertia,lowamplitude,high-frequency. Therefore,many control algorithms are studied and applied,such as currentmultisampling...
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Number of views:4259 Amount of downloads:4052
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LI Yangyang,HU Jinlei,LAI Junju,WANG Wei,YANG Fan
Abstract: Aiming at the on-site live detection data of switchgear,a mean-shift clustering algorithm based onmulti-dimensional feature quantity was proposed to identify the abnormal partial discharge of switchgear. Theswitchgear partial discharge detection data which include dispersion,average distance percentage,con...
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Number of views:4254 Amount of downloads:3539
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PAN Guangxu,GONG Chiyu,LI Xingyu,HU Jun,LI Yingjie,WANG Ruiqi
Abstract: As an essential part of power system design and operation scheduling,electric load forecasting istroubled by strong randomness and low accuracy. Moreover,the application of advanced forecasting algorithms isassociated with data management system,while the traditional data management system is very inconven...
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Number of views:4237 Amount of downloads:4147
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ZHOU Ye,CUI Shuangxi,FAN Xiaochao,WANG Weiqing,WU Binbing
Abstract: When the grid voltage is unbalanced,the negative sequence current will seriously affect the qualityof the output power of the grid-connected inverter. The detection speed of the grid information is one of the mainfactors of negative sequence current compensation. Therefore,a control strategy without phase-...
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Number of views:4226 Amount of downloads:3532
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FAN Zhenning,SU Qiang,ZHANG Xinmin,ZHAO Changwei,XU Ke
Abstract: The control strategy of flexible multi-state switch(FMS)is a key technical challenge to ensure its highefficiency,reliability and flexibility. In order to solve the problems that the parameter design of proportional resonant (PR)controller is complicated and is greatly affected by grid frequency disturbanc...
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Number of views:4220 Amount of downloads:3875
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DING Yi1,LIU Shengzhong,WANG Xudong,HUO Xianxu,HU Zhigang,JIANG Fan
Abstract: The estimation method of state of health(SOH)of lead-acid battery based on chaotic particle swarmoptimization-Gaussian process regression(CPSO-GPR)was proposed. Firstly,the voltage and current curves of leadacid battery during charging process were investigated,and the characteristics of constant current c...
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Number of views:4198 Amount of downloads:4173
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LI Chengyuan,ZHANG Chao,LI Zhe,LIU Bochang,GAO Jing,JIN Pengfei
Abstract: Due to the small capacity and weak regulation energy of island grid,it is very easy to cause systemcollapse. When the isolated grid collapses,it is necessary to establish the grid through its internal black start powersupply without relying on the external public grid. In recent years,with the rapid develo...
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Number of views:4186 Amount of downloads:4130
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CHENG Zhiyuan,LI Zheng,WU Longfei,CHEN Kun,SUI Licheng
Abstract: Wireless power transmission technology can effectively solve the problems of wear,leakage and soon in the energy transmission process of traditional plug-in electrical equipment because of its non-physical contactenergy transmission mode. In view of this,a new type of secondary side magnetic ring strip typ...
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Number of views:4162 Amount of downloads:4699