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DONG Yue,LI Linwei,LI Feng,ZHAO Xianghua
Abstract:Low frequency transmission was adopted in the sending end of wind power farm,in order to reduceline impedance and charging current of distributed capacitance,improve the static stability limit and transmissioncapacity. Compared with using flexible DC converter valves to send power and connect to grid,modula...
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Number of views:1489 Amount of downloads:5949
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LIU Wenqi,DING Wenfang
Abstract: In order to overcome the shortcomings of the classic Boost converter,such as low boost ratio,largeinput current ripple,and high voltage stress of power devices,a new type of zero input current ripple high gain nonisolated DC/DC converter was proposed. The combination of isolation type Sepic converter,coupl...
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Number of views:3943 Amount of downloads:5943
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JIANG Wenhui,LIN Dong,YU Li,CHEN Bo,CHEN Yumin
Abstract: The voltage stability of power grid was briefly introduced,and the measurement method of voltagestability of phasor measurement unit(PMU)based on state estimation was proposed. This method mainly aims atthe voltage change caused by the load rate change. The voltage stability under different load conditions...
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Number of views:1715 Amount of downloads:5942
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TAO Li,YANG Xiaxi,GU Jinhui,WEI Bingbing,ZHANG Lin,WANG Jianing
Abstract: Virtual power plant(VPP)can integrate distributed energy resource(DER)to participate in theoperation of power market and auxiliary service market,and provide management and auxiliary services fordistribution network and transmission network. Its operation and control have been widely concerned. Aiming at t...
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Number of views:2189 Amount of downloads:5937
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LI Zhen,ZHAO Pengxiang,WANG Nan,CONG Lin,WANG Huiyuan,CAO Yan
Abstract: Exploring the flexibility of the heat and electricity coupling integrated energy system(HEC-IES),reducing system operation costs and promoting renewable energy consumption are hot issues in the field of energyinternet. Thus,a day-ahead optimal scheduling method of the HEC-IES considering the thermal dynami...
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Number of views:2465 Amount of downloads:5937
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JIANG Jian,XU Fengliang,WANG Fayi
Abstract:Reasonable planning of the active distribution network is an important part to improve the windenergy accommodation capability,however,the overuse of the wind power output and load timing characteristicsincrease the difficulty of model solving and have adverse effects on the optimal results. The Latin hyper...
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Number of views:1857 Amount of downloads:5927
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MAYuefeng,ZHAO Suqi,WANG Kai
Abstract:Microgrid is an effective method to integrate a large number of distributed generators into the powergrid. Aiming at the optimal dispatch problem of microgrid,an optimal dispatch method based on proximal policyoptimization algorithm was proposed. Firstly,the optimal diapatch model of microgrid was construct...
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Number of views:1998 Amount of downloads:5926
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JIN Dan,ZHI Jing,XIN Shijin,YANG Jian,HUANG Yafei,XU Qing
Abstract:Voltage source converter(VSC)connected to weak AC power grid has the risk of small disturbanceinstability. Under the traditional control strategy,VSC has to reduce output power to maintain stable operation. Inorder to improve the stability of the weak grid connected VSC system,first established a universal ...
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Number of views:1697 Amount of downloads:5924
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XING Gang,LIU Huihong,WANG Bozhao,SONG Wenyang,LIU Longfei,XU Xiandong
Abstract:To address the need of carbon emission peak and carbon neutrality target on local energy systems,an optimal expansion planning method of heat pump was proposed for regional energy stations considering thebenefits from ancillary services. The method was used to support the integration of new technologies suc...
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Number of views:1812 Amount of downloads:5921
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WU Yihao,ZHAO Shiwei,ZHOU Jie,XIAO Chaoren
Abstract:In order to solve the problem of large peak-to-peak inductor currents in dual active bridge converterswith mismatched input and output voltages,a four-degree-of-freedom modulation(FDFM)strategy was proposedby combining symmetric duty cycle modulation and asymmetric duty cycle modulation. By analyzing the op...
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Number of views:1441 Amount of downloads:5920
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DING Qiang,ZHU Jie,JIANG Yingxu
Abstract: Direct-drive electrically excited synchronous motor(EESM)is obtained widespread utilization inwind power generation system due to its advantages of simple construction and low cost. Firstly,a mathematicalmodel of EESM was derived and the direct torque control(DTC)algorithm for EESM was introduced based on ...
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Number of views:3160 Amount of downloads:5915
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CHEN Xuling,LIU Cheng,XU Xinwei,DONG Shuo,TIAN Ting
Abstract:Taking the planar rotation mechanism as an example,a magnetic coupling wireless powertransmission system was designed and studied from two perspectives:the spatial structure of the coils and theresonant compensation circuit. This system aimed to reduce the voltage fluctuations caused by significant changesi...
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Number of views:2076 Amount of downloads:5911
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ZHA Haitao,XU Kexin,LI Xiaowen,LIU Bin
Abstract: Active power filter(APF)is one of the main ways to eliminate harmonic quality problems in powergrid,and LCL filter is commonly used to connect APF to power grid. In order to suppress the resonance problemcaused by LCL filter,active damping based on capacitor current feedback is a common method. Active damp...
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Number of views:2866 Amount of downloads:5910
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CHEN Dongdong,ZHANG Shengqi,XIAO Long
Abstract:Due to the wide control bandwidth of the shunt active power filter(SAPF),the resonance problemof the LCL output filter has become a key problem of the SAPF. To solve the resonance problem of the LCL filter,anovel damping method based on active damping circuit was proposed to achieve the damping effect witho...
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Number of views:2013 Amount of downloads:5904
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YUAN Shaowei,LI Yuxiang,JIANG Jie,ZHANG Bei,ZHU Qing
Abstract:In order to solve the problems of intermittent and fluctuating distributed energy,took three majorphysical entities in the demand response project,namely system operator,load aggregator and load end user,as the research object,the transactions between supply and demand within the power system composed by the...
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Number of views:1945 Amount of downloads:5901