Integrated energy and modern power grid
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ZHANG Junlin,NI Lianghua,SUN Jia,LÜ Ganyun,ZHANG Jinhua
Abstract:In order to intervale evaluate saddle node bifurcation points(SNB)in a power system during loadgrowth quickly and accurately,a quadratic approximation method to directly calculate the power system voltagecollapse point of was proposed. Based on the approximate quadratic PV-curve of output PQ nodes in the sy...
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Number of views:877 Amount of downloads:626
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DONG Min,LIU Kezhen,ZHAO Qingli,CHEN Leidan,YAO Yue,ZHAO Xiong
Abstract: Under the "dual carbon" goal,the electric energy systems need to gradually develop towards theway of energy saving and low carbon. The integrated energy system(IES)is an important measure to solve energyand environmental protection problems. At present,the research on IES mainly focuses on distributed ener...
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Number of views:1013 Amount of downloads:912
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YANG Fan,WANG Huanmin
Abstract:With the development of power electronics technology,microgrid type energy storage inverters withvirtual synchronous generator(VSG)function have also been widely used. In VSG technology,due to the presenceof inertial frequency regulation loop and voltage regulation loop,the inverter can realize the grid fre...
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Number of views:1222 Amount of downloads:872
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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:820 Amount of downloads:939
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LI Ruizhe,WU Ming,LIU Shiyu
Abstract:To address the issue that existing microgrid planning evaluation methods do not adequately accountfor the influence of uncertainties in the system and environment on the evaluation results,a microgrid planningevaluation method based on regret theory-vlsekriterijumska optimizacija i kompromisno resenje(VIKOR...
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Number of views:845 Amount of downloads:928
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CHEN Ling
Abstract: With the large increase of load users,the load side adjustable resources gradually increase,and theload side demand response(DR)resources are used to participate in microgrid scheduling to improve the level ofnew energy consumption. In order to give full play to the scheduling potential of DR resources and...
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Number of views:762 Amount of downloads:930
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LÜ Yi,LIANG Wenbo,WANG Qing,LIU Entao
Abstract: The traditional active distribution network location and capacity determination ignores the multienergycomplementary coordination characteristics of the energy system,which led to high cost. Therefore,anactive distribution network location and capacity determination method based on energy interconnection w...
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Number of views:821 Amount of downloads:652
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LI Mingke,ZHONG Jinxing,XUE Yan,XIONG Xiaosheng,LIU Junwei,DENG Lina
Abstract: In order to effectively manage the grid short-circuit current overrun problem,optimization decisionmaking evaluation method of short-circuit current limitation scheme based on hybrid decision model considering asymmetric closeness was designed. Considering the relevant influence of the short-circuit curren...
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Number of views:867 Amount of downloads:651
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HAO Liangshou,XIA Kepeng,CHEN Xiaoping,JIANG Hai,ZHU Qi,WANG Di
Abstract: The conventional grid voltage observation methods of flexible DC power converters need to designmultiple observers,and use multiple filters,which are also affected by DC-offset. So,a grid voltage observationmethod of flexible DC power converters based on single sliding mode observer and single third-order ...
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Number of views:956 Amount of downloads:889
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LÜ Zhengyu,ZHOU Liang
Abstract: In the process of controlling the voltage of active distribution network,there are problems of poorvoltage control effect and low efficiency. A two-stage automatic voltage control method of active distributionnetwork considering load measurement was proposed. Using the probability density function (PDF) cu...
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Number of views:1089 Amount of downloads:780
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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:807 Amount of downloads:795
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LI Gang,XU Bin,WANG Xiaoming,ZHAO Wenguang,FANG Zhao,WU Hongbin
Abstract: The distributed control strategy of the distribution network with distributed generation is expected tosolve the voltage control problem of the distribution network. However,distributed generation are loosely distributed in space,and communication problems such as communication delay and packet loss betwee...
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Number of views:883 Amount of downloads:764
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CHENG Kai,WANG Pengyu,BAO Tao,YU jinyi,ZHANG Zihao
Abstract: The original power system dispatching model is separated from physical model and informationmodel. Establishing a cyber-physical integrated power system dispatching model can fully analyze and explore theregulation ability of adjustable resources,expand the dispatchable space of power system,and enhance th...
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Number of views:978 Amount of downloads:1238
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LI Lingqi,CHENG Zhijiang,GUO Shaokang,XIAO Shihao ,CHEN Xingzhi
Abstract: Aiming at the problem of wind abandonment caused by the contradiction between wind and heatduring the winter heating in the Three-north areas of China,a scheduling strategy for electric heating combinedsystem considering wind power consumption was proposed. Firstly,the "power determined by heat" constraint...
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Number of views:797 Amount of downloads:896
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LIU Detao
Abstract: Due to the inaccurate power deviation and network loss results obtained by the energy storage powercontrol of the multi-source distribution network,the power control results are not ideal. A rational control method of energy storage power in multi-source distribution network based on ant colony algorithm w...
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Number of views:814 Amount of downloads:880