Integrated energy and modern power grid
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ZHANG Chao,QIU Han,LI Zhe,LIU Bochang,Zhang Baoshun,LI Chengyuan
Abstract: A control strategy of off-grid start-up of energy storage system(ESS)was proposed,which canmake all power converter systems(PCSs)entered off-grid mode smoothly and quickly in MW level battery energystorage power station,and make off-grid voltage set up. The unified off-grid phase angle and enable signal we...
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Number of views:3180 Amount of downloads:1271
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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:3183 Amount of downloads:1337
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LI Qi,CHEN Yihua,GUO Bin,ZHANG Deliang,GUO Shaoqing
Abstract: In order to solve the contradiction between the maximum consumption of new energy and thereserved power flow margin of operation section,a day-ahead coordination optimization method for complexcascaded power grid based on key section identification was proposed to achieve the orderly coordination among the...
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Number of views:3565 Amount of downloads:1541
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TAN Xiaomeng,LIU Jichun
Abstract: New energy with intermittent and uncertainty would seriously impact the operation reliability,especially in isolated multi-energy complementary generation system,and make the system face certain risks. Thus,reasonable system reserve is the key to avoid large risk loss in isolated island power system under ...
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Number of views:3421 Amount of downloads:1418
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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:3164 Amount of downloads:1380
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FANG Biwu,XIAO Liang ,SUN Cheng,CHEN Yiping,XUE Yanjun,ZHANG Deliang
Abstract: In order to improve the absorption capacity of clean energy and make full use of the peak regulationresources of each province,the peak regulation capacity of different types of power sources was studied,and aregional power grid optimization dispatching method considering the mutual aid of peak regulation ...
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Number of views:3171 Amount of downloads:1273
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LIU Sheng
Abstract: Voltage and current balance plays an important role in ensuring the normal operation of DC microgrid.Therefore,a new distributed voltage and current control method was proposed to realize the current sharingand voltage sharing regulation of DC micro-grid. The considered DC micro-grid was composed of severa...
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Number of views:3525 Amount of downloads:1725
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MA Zhousheng,YAO Yang
Abstract: A novel DC current-voltage droop control method was proposed for a hybrid high-voltage directcurrent(HVDC)system composed of a voltage source converter(VSC)and a line-commutated converter(LCC).The DC voltage droop control was used to reduce AC voltage fluctuation on the inverter side,so as to achieve thego...
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Number of views:3570 Amount of downloads:1499
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CHEN Lu,WANG Can,HU Hao,ZHOUYANG Junran,YANG Wentao,MA Xin
Abstract: With the increasing utilization rate of electric vehicles(EVs)in China,high permeability EVs makethe three-phase imbalance rate of urban distribution network increase day by day,which causes problems such asvoltage fluctuation and network loss increase,and the distribution network with high three-phase imb...
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Number of views:3579 Amount of downloads:1626
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WANG Haijun,WANG Lei
Abstract: Aiming at the problem of active power dispatch and control in the grid-connected power system oflarge-scale wind power clusters(WPC)of distributed wind farms,a hierarchical model predictive control(HMPC)strategy based on dynamic power dispatch was proposed. Firstly,the dispatch framework was divided into f...
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Number of views:3355 Amount of downloads:1392
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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:3578 Amount of downloads:1412
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WU Ming,LÜ Zhipeng,WANG Xin,YANG Wanli,ZHOU Shan,LIU Xiaojuan
Abstract: Multi-energy complementary DC micro-grid is of great significance to achieve sustainable energydevelopment. Based on the typical DC micro-grid with various energy forms including wind,solar,gas and battery,a multi-energy DC micro-grid operation control strategy considering the complementary inertia of gas ...
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Number of views:3202 Amount of downloads:1360
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GONG Ruibang,JIANG Qi,WANG Yuchen,ZHANG Baoqing
Abstract: A novel voltage regulation and maximum power point tracking(MPPT)control for DC microgridcomposed of PV panel,battery,constant resistance and constant power loads was proposed. A dynamic model of the DC microgrid system described by a multi-input and multi-output nonlinear system with non-affine inputs was...
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Number of views:3795 Amount of downloads:1627
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LIU Chunhui,ZHANG Zheng,FAN Hongzhen,MOU Huilong,HUANG Cunkuan,YUAN Fang
Abstract: Multi-energy complementary generation operation had become a new direction to improve theefficiency of new energy utilization,and it is particularly important to analyze the characteristics of multi-energycomplementary generation. According to the operation characteristics of multi-energy complementary gen...
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Number of views:3583 Amount of downloads:1373
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JIA Junqing,LÜ Chao,LIU Dinghua,XU Hao
Abstract: With the rapid development of artificial intelligence algorithms,convolutional neural networks withfewer layers have been used in distribution network overvoltage recognition. The deep-level network has a higherrecognition rate,but requires a large number of data samples. At present,the amount of data in t...
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Number of views:3639 Amount of downloads:1628