Results 11 to 20 of about 277,270 (358)
DC Fault Ride-Through Strategy Based on Overmodulation [PDF]
IOP Conference Series: Earth and Environmental Science, 2021 Abstract The hybrid modular multilevel converter (hybrid MMC) can realize DC fault ride-through based on the capability of overmodulation and can continue to output reactive power to AC side during the fault, which can speed up the recovery of DC grid power after the fault is cleared.
M Cui, K J Li, Z J Liu, L Z Li
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Energy Reports, 2021 The hybrid HVDC system based on line commutated converter and modular multilevel converter is a feasible method to address the common commutation failure at the receiving end of conventional HVDC systems. At present, project Gezhouba–Shanghai in China is
Liangliang Hao +4 more
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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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IEEE Transactions on Power Delivery, 2023 The doubly fed induction generator (DFIG) based wind turbine generator (WTG) can activate different fault ride through (FRT) control schemes and circuits to comply with various grid code or utility interconnection requirements. These FRT solutions play a
Yuanzhu Chang +4 more
semanticscholar +1 more source
A New Virtual Oscillator-Based Grid-Forming Controller with Decoupled Control Over Individual Phases and Improved Performance of Unbalanced Fault Ride-Through [PDF]
IEEE transactions on industrial electronics (1982. Print), 2022 Virtual oscillator (VO) control is the latest and promising control technique for grid-forming inverters. VO controllers (VOCs) can simultaneously provide time-domain synchronization and steady-state droop functionalities.
Ritwik Ghosh, N. Tummuru, B. Rajpurohit
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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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IEEE Access, 2023 Modular multilevel converter (MMC)-based high voltage direct current (HVDC) transmission networks integrate remotely located distributed renewable energy resources (RER). The intermittent nature of RER and symmetrical and asymmetrical AC-side low-voltage
M. Hossain +4 more
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Ride-through-fault capabilities of DFIG wind farm connected to a VSC station during a DC fault [PDF]
, 2010 This work analyzes the capabilities of ride-through-fault (RTF) of a double-fed induction machine (DFIG), -based wind farm connected to a VSC-, in case of a fault in the DC side of the VSC.
Anaya-Lara, O. +3 more
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An Adaptive Fault Ride-Through Scheme for Grid-Forming Inverters Under Asymmetrical Grid Faults
IEEE transactions on industrial electronics (1982. Print), 2022 Three-phase four-wire grid-forming (GFM) inverters are promising to interface distributed energy resources into low-voltage networks. However, these inverters are prone to overcurrent under grid faults. Physically increasing the inverter current capacity
Zilin Li, K. Chan, Jiefeng Hu, S. Or
semanticscholar +1 more source
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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