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LI Haoyuan,CHEN Guowei,LI Guanjun,WEI Lingfeng,LIN Da,WANG Xiangjin
Abstract:With the emergence of a large number of distributed power generations,various unbalanced andnonlinear loads are connected to the power grid,resulting in the distortion of the grid current,which brings adverse effects to both the power grid and electrical equipment. A multifunctional energy storage converter...
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Number of views:1700 Amount of downloads:6095
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FAN Peilin,HU Pengtao,XUE Jianli,LIU Zheng,HUANG Jinming
Abstract:Voltage source converter (VSC) is prone to low-frequency oscillations of 100~101Hz whenconnected to weak AC power grids. The mechanism of improving the control strategy of VSC on the traditionalinverter side to suppress low-frequency oscillations(LFO)in the AC power grid is to transfer the oscillations from...
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Number of views:1495 Amount of downloads:6094
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YU Xinhai,WANG Xin,SU Riguge,ZHANG Xiaoju
Abstract: Microgrid is an effective method to integrate distributed power supply into power grid. The optimaloperation of microgrid can effectively improve the utilization efficiency of renewable energy. The objectiveoptimization model was established,considering the economy of microgrid operation,the volatility of ...
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Number of views:3564 Amount of downloads:6094
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JIAO Xiaofeng,WEI Chao,HU Hongbin,FAN Zeguo,ZHANG Lihui
Abstract: With the acceleration of my country' s power spot market construction process,in order to solve theproblem of heat-electricity mismatch in the northern region,two different day-ahead scheduling strategies of aflexible co-generation plant based on the participation of cogeneration units in the day-ahead...
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Number of views:2629 Amount of downloads:6087
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ZHOU Wen,YANG Shaobo
Abstract: In the DC microgrid,bus voltage stability is the key to maintain the normal operation of the system.Load switching and distributed micro-source power fluctuations will affect the stability of the DC bus voltage. Tosolve the above problem,a compensation control strategy based on the residual generator was p...
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Number of views:3599 Amount of downloads:6083
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ZENG Jiang,XIONG Taojun,XIE Baoping,ZHAO Benqiang,MA Haijie
Abstract: Aiming at the deficiency that the traditional active power filter(APF)can only control the localharmonic source,a harmonic active defense system(HADS)based on virtual harmonic resistance was proposed.The principle of harnessing harmonics in distribution network by HADS was analyzed,the HADS simulationmodel...
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Number of views:2285 Amount of downloads:6077
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YU Jialin,GUO Jinrui,TU Xiaodong,LIU Weiliang,ZHONG Weidong
Abstract:To address the issue of over/under voltage in the distribution network due to the scale access ofdistributed generators and flexible loads under the "double carbon" target,an active distribution networkscooperative voltage control strategy based on the active support of electric vehicles(EVs)aggregation wasp...
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Number of views:1989 Amount of downloads:6073
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XU Junyue,LIU Yi,GUI Jiae
Abstract: Aiming at the problems of three-phase load imbalance,power quality degradation and harmonicdispersion in current electronic power distribution system,a comprehensive power quality control scheme with fastdynamic response and small output harmonic was proposed,which includes comprehensive control mode andco...
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Number of views:2019 Amount of downloads:6072
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GONG Yanchao,YANG Haiyun,MIAO Junjie,GAO Zhi
Abstract: Parallel capacitor banks can effectively improve the efficiency and quality of power transmission inthe application process of power distribution network. However,due to some unreasonable factors in the switchingmode of power capacitors,it will also generate overvoltage,thus affecting the power grid. stabi...
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Number of views:2309 Amount of downloads:6071
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ZHANG Jinbo,YIN Yuan,SHI Jian,LIN Shaoyuan,YAN Lei,HUANG Xiaoyu, LIN Yubin,YANG Dishan,CHENG Nuo
Abstract: In order to reduce the measurement error of transmission line crossing distance and reduce theoccurrence rate of transmission line accidents,a method of transmission line crossing distance measurement basedon grid information model was proposed. The platform of crossing distance measurement including data ...
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Number of views:4185 Amount of downloads:6071
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MENG Jia
Abstract:To address the supply-demand imbalance caused by renewable energy intermittency and loadfluctuations in islanded microgrids,a two-layer optimization-based dynamic time-of-use(TOU)pricing schedulingmodel was proposed,aiming to enhance economic efficiency and operational stability. First,a comprehensivemicrog...
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Number of views:1663 Amount of downloads:6070
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ZHANG Kuangyi,LIU Haitao,MA Bingtai,ZHANG Chengyu
Abstract: There are many fault distributions along the actual distribution network lines,but the existingvoltage sag stochastic assessment methods only consider the uniform fault distribution. According to the differentfault distribution characteristics along the line,a stochastic assessment method of voltage sag wa...
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Number of views:2327 Amount of downloads:6068
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GONG Weizheng,YAO Yin,CHEN Mengying,LI Dongdong,ZHANG Xianming,ZHU Yedong
Abstract:The rapid increase in the proportion of renewable energy in the East China Power Grid System andthe continuous decline in the rotational inertia and frequency modulation resources in the system will pose a threatto the system's frequency immunity and stability. The existing research focuses on the devel...
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Number of views:1828 Amount of downloads:6059
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WANG Pengcheng,PAN Ligang,WANG Yijie
Abstract: The emergence of wireless power transmission(WPT)technology overcomes the strict requirementsof traditional wire transmission process on transmission site conditions,maintenance convenience and security,which has a wide range of application scenarios. In the WPT technology,the misalignment tolerance charac...
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Number of views:2045 Amount of downloads:6056
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LI Jiayu,HAN Yuan,WANG Jianjun,PAN Yue
Abstract:Modular multilevel matrix converter(M3C)is a multilevel topology that can directly realize ACACconversion,which has good application prospects in high-voltage transmission systems and DC distributionsystems,but the existence of bridge-arm circulating channels inside the M3C leads to a very complex controlst...
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Number of views:1929 Amount of downloads:6052