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NIU Shengsuo，CHENG Bo，LI Jinbo，LÜ Linfei，FU Xiulai
Abstract: Avoltage disturbance detection method based on mathematical morphological filtering and derivationdq transformation was proposed. Firstly，in order to reduce the interference of pulses，harmonics and other noises in the signals to be detected，a composite morphological filter was constructed based on adaptive...
更多Number of views：2098 Amount of downloads：1548
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ZHANG Ao，DAI Linwang，MA Zhengyang，LI Shaolin，ZHANG Xueguang
Abstract: Doubly-fed wind turbine is easy to produce sub-synchronous oscillation in series compensation grid.Using virtual synchronous control structure to improve inertia and damping for grid may also lead to subsynchronous oscillation risk. In view of the causes of sub-synchronous oscillation，firstly，the double-fe...
更多Number of views：2552 Amount of downloads：1542
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HUANG Xu，LIU Yichao，ZHU Hanqing，LIU Yang
Abstract: The DC fault current calculation method of modular multilevel converter（MMC）is the key to studythe DC fault transient characteristics and isolate the fault point rapidly in VSC-HVDC grid. Firstly，aiming at twotypical MMC fault equivalent models，the topology and the capacitor voltage characteristics when th...
更多Number of views：3294 Amount of downloads：1537
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NIU Shengsuo，WU Zhenan，HUANG Shengpo
Abstract: The test of the internal cable conductivity of the traditional bullet train is time-consuming andlaborious，which increases the probability of false detection，seriously affects the accuracy and reliability of cabledetection results of bullet trains，and greatly reduces the safety and stability of bullet trai...
更多Number of views：3665 Amount of downloads：1537
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ZHOU Xuesong，GUO Kairui，MAYoujie，ZHONG Weibao
Abstract: Although the parallel connection of inverters in a microgrid system increases the system capacity，itcreates a circulation path which provides the conditions for the generation of zero-sequence circulating current（ZSCC）. In order to solve the problem of system loss caused by ZSCC，a ZSCC controller was desig...
更多Number of views：2574 Amount of downloads：1525
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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...
更多Number of views：2369 Amount of downloads：1524
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LU Wu，ZHENG Renjie，ZHAO Wenbin，TANG Jiayuan
Abstract: Efficient and accurate short-term load forecasting is essential to the safe and stable operation of thepower system. A combined prediction model based on empirical mode decomposition（EMD）and gated recurrentunit（GRU）was proposed. First，the date factors ，meteorological factors and historical load factor were...
更多Number of views：2621 Amount of downloads：1518
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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...
更多Number of views：3559 Amount of downloads：1515
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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 ...
更多Number of views：3481 Amount of downloads：1507
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LIU Ronghui，MA Tiantian ，SUN Gaiping
Abstract：The potential dispatchable resources of electric power，heat，cool and gas in the integrated energysystem（IES）are important contributors to reduce the operating cost of IES. In order to guarantee the customersatisfaction while reducing operating cost of IES，a IES day-ahead optimal dispatch model considering a...
更多Number of views：2177 Amount of downloads：1505
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CHEN Jinyang，LEI Yong，CAO Xiaoyan，HE Xin，ZHU Xiaobo
Abstract: The operation of 5G communication base stations in remote areas requires a lot of power. The basestation power supply system composed of wind and solar new energy can well solve the problem of difficult accessto the power grid in remote areas. The selection of the component capacity of the new energy base ...
更多Number of views：2829 Amount of downloads：1505
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TIAN Kai，YUAN Yuan，YU Zhibin，JIANG Yida，LI Nan，SONG Peng
Abstract: Three-level neutral-point balance method based on PWM pulse width dynamic regulation wasproposed to realize optimized PWM high-performance closed-loop control and three-level neutral-point balancecontrol of the inverter at low switching frequency. The fundamental current component was extracted from thecur...
更多Number of views：2568 Amount of downloads：1503
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CAI Wenbin，CHENG Xiaolei，NAN Jianan，LÜ Haixia，LI Ye，LI Jingyu
Abstract: With the proposed goal of achieving double carbon in China，a higher proportion of new energy willbe connected to the grid in the future. An analysis method was proposed for assessing the adequacy of flexibilityresources of power system with a high proportion new energy. The adequacy index of proposed flexi...
更多Number of views：2629 Amount of downloads：1503
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YANG Shude1，ZENG Zikang，ZHANG Xinwen，GAO Xiongying，CAI Changhong，ZHOU Xin
Abstract: For the technical requirements of on-load voltage regulation based on power electronic switches，athyristor-based on-load voltage regulation unit topology was given based on the analysis of the possible conduction state of each switch in the steady state and the switching law of different states. Considerin...
更多Number of views：2701 Amount of downloads：1501
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ZHANG Liuyang，XU Limei，HUANG Ying，WANG Yao
Abstract: In order to improve the load transient response speed of Buck LED constant current driver，acapacitive current ripple-controlled（CCRC） Buck LED constant current driver was proposed. Based on theoperating principle of Buck LED constant current driver，the state space averaging model of Buck LED constantcurren...
更多Number of views：2680 Amount of downloads：1500
