Results 21 to 30 of about 11,960 (229)
High Voltage, 2022 In a modular multilevel converter‐based high‐voltage direct current (MMC‐HVDC) system, the dc fault ride through (FRT) control is an effective way to deal with a dc‐side pole‐to‐ground (PTG) fault.
Zhen He +3 more
doaj +1 more source
Energies, 2022 In the event of a DC side fault in modular multilevel converters (MMCs), the fault current contributions are initially made by submodule (SM) capacitor discharge, which occurs before the fault is detected, followed by the AC side contribution to the DC ...
Munif Nazmus Sakib +2 more
doaj +1 more source
Fault ride-through of doubly-fed induction generator with converter protection schemes [PDF]
, 2008 This paper from the point view of wind farm fault ride-through (FRT) capability, discusses the performance of converter protection schemes to it. Different resistor protection methods are summarized and then a new combined protection with crowbar (CB ...
Dorrell, DG, Fletcher, JE, Yang, J
core +1 more source
Fault characteristics analysis of two HVDC technologies for wind power integration [PDF]
, 2014 This paper analyzes the operation and control principle of the two transmission technologies, i.e. Line-Commutated Converter-HVDC (LCC-HVDC) and Voltage Source Converter-HVDC (VSC-HVDC) for wind farm integration.
Chen, X, Hou, Y, Wen, J
core +1 more source
Energies, 2022 Global warming and rising energy demands have increased renewable energy (RE) usage globally. Wind energy has become the most technologically advanced renewable energy source. Wind turbines (WTs) must ride through faults to ensure power system stability.
Ernest F. Morgan +4 more
doaj +1 more source
Improving fault ride-through of three phase voltage source inverter during symmetrical fault using DC link fault current limiter [PDF]
, 2015 The majority of distributed generation (DG) units utilize three phase voltage source inverter (VSI) to exchange electric power with the utility grid. The VSI employs semiconductor devices (SDs) with limited current withstand capabilities which are very ...
Hagh, M. Tarafdar +4 more
core +2 more sources
Current-limiting droop controller with fault-ride-through capability for grid-tied inverters [PDF]
, 2017 In this paper, the recently proposed current-limiting droop (CLD) controller for grid-connected inverters is enhanced in order to comply with the Fault-Ride-Through (FRT) requirements set by the Grid Code under grid voltage sags.
Konstantopoulos, G.C. +3 more
core +1 more source
On Systematic DC Fault-Ride-Through of Multi-terminal MMC-HVDC Grids [PDF]
, 2021 Development of Modular Multilevel Converter (MMC) based HVDC grids, as a new generation of Voltage Source Converter (VSC)-HVDC systems, has been considerable through the past decade.
Bak-Jensen, Birgitte +5 more
core +2 more sources
A Current Limiting Strategy to Improve Fault Ride-Through of Inverter Interfaced Autonomous Microgrids [PDF]
, 2017 With high penetration of distributed energy resources (DER), fault management strategy is of great importance for the distribution network operation. The objective of this paper is to propose a current and voltage limiting strategy to enhance fault ride ...
Esmail Hamedani Golshan, Mohamad +3 more
core +2 more sources
A Hierarchical Control Strategy With Fault Ride-Through Capability for Variable Frequency Transformer [PDF]
, 2014 A variable frequency transformer (VFT) is being considered as a new alternative to the classical back-to-back high voltage direct current (HVDC) link for interconnection of two asynchronous networks. The VFT is a retrospective form of frequency converter
Ambati, Bharath Babu +4 more
core +1 more source