Results 21 to 30 of about 2,476 (267)
Chopperless Fault Ride-Through Control for DC Microgrids [PDF]
IEEE Transactions on Smart Grid, 2021 The dc microgrid should remain connected to the ac utility grid to support the grid stability during faults. However, the bidirectional power flow between the utility grid and the dc microgrid will cause either high-voltage or low-voltage faults at the dc bus.
Yanghong Xia, Teng Long
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Energy Reports, 2022 With the continuous improvement of the penetration level of wind power in the power system, the grid-forming mode of wind turbine will gradually become one of the main modes of system synchronization.
Jianzu Hu +4 more
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Frontiers in Energy Research, 2021 Aiming at the problems of DC fault isolation and power surplus in the HVDC system with large-scale wind farm (WF) integration after single-pole grounding fault, this article designs a modified current transfer modular multilevel converter (M-CT-MMC ...
Bo Zhu +5 more
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Fault Ride-Through Strategy for GFM Inverters Based on Power Command Constraints [PDF]
Dianli jianshe[Objective] To address the issues of power angle instability and output current overload in grid-forming（GFM）inverter during symmetrical grid faults，this paper proposes a fault ride-through strategy based on power command constraints.
LIU Yiqi, ZHAO Bo, LAN Hao, ZHANG Hengke, WANG Zeyang, WU Yucheng
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Mechanical Switch Based Adaptive Fault Ride-through Strategy for Power Quality Improvement Device
Energies, 2021 Cascaded H-bridge power quality improving device (PQID) has garnered extensive attention for its flexible electric energy conversion and fast voltage response.
Yu Shen +6 more
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An Analytical Short-Circuit Current Calculation Method for Full-Power Wind Turbines under Complete Fault Ride-Through Processes [PDF]
Dianli jiansheAccurate calculation of short-circuit current throughout the fault ride-through process of wind turbines is a critical prerequisite for the analysis and control of modern power systems.
YUAN Shuai, XIAO Jiaan, TAO Jun, CUI Haohan, CHAO Pupu, LI Weixing, A Minfu, WANG Liqiang, ZHONG Ming
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Fault ride‐through strategy for hybrid HVDC with cascaded multi‐infeed MMC inverters
Electronics Letters, 2021 The hybrid HVDC with cascaded multi‐infeed MMC inverters suffers from the fragile characteristic of its MMC inverters and is easy to be over current and over voltage.
Jingbo Zhao +4 more
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Control Strategy for Potential Vector Remolding Fault Ride-through in Grid-forming MMC [PDF]
Dianli jianshe[Objective] The operational characteristics of the grid-forming modular multilevel converter （MMC） in offshore wind power transmission systems under short-circuit faults in the receiving-end grid are unclear， and the interaction mechanism between fault ...
FANG Chaoxiong, TANG Yuchen, LIN Yi, SHEN Hao, PAN Chao, BIAN Xiaoyan, ZHAO Jinbin
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Fault Ride-Through Characteristics of Small Wind Turbines [PDF]
Energies, 2019 There is significant potential for an increase in the use of kilowatt-class small wind turbines (SWTs) in Japan due to reduced limitations with respect to installation, despite their high cost. At this stage, the Japanese grid code has not been considered sufficiently with respect to grid-connected SWTs, and the addition of fault ride-through (FRT ...
Kondoh, Junji +2 more
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The Journal of Engineering, 2019 Wind turbines should have fault ride through capability, and also it can provide damping for the power grid by improving the control strategy. However, the currently corresponding control strategy is designed independent for the fault voltage through ...
Haiyan Tang +3 more
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