Results 41 to 50 of about 2,212 (228)

A flexible low-voltage ride-through operation for the distributed generation converters [PDF]

open access: yes, 2013
With more and more distributed energy resources (DERs) are installed in the utility grid, the utility requires the DER generation system to remain grid-connected and injects reactive and active power to support grid voltage during voltage sags.
Bhattacharya, Subhashish   +5 more
core   +1 more source

LVRT Impact on Tower Loads, Drivetrain Torque and Rotational Speed—Measurement Results of a 2-MW Class DFIG Wind Turbine

open access: yesEnergies, 2021
With an increasing share in energy production, wind turbines have to fulfill strict grid requirements to support the grid in case of discontinuities. Here LVRT (Low Voltage Ride Through) compliance is one essential part, where the turbine has to stay ...
Mathias Arbeiter   +2 more
doaj   +1 more source

The transient instability mechanism and stability‐enhanced LVRT control for VSC riding‐through severe grid voltage sag

open access: yesIET Renewable Power Generation, 2023
As the grid‐connected interface device of wind and photovoltaic power generation, the voltage source converter (VSC) must pass the low voltage ride‐through (LVRT) test. However, existing literature demonstrates that under weak grid conditions, there is a
Huiqiang Sun   +6 more
doaj   +1 more source

Performance Evaluation of Low/Zero Voltage Ride-Through Operations for Single-Stage Single-Phase Photovoltaic Inverters [PDF]

open access: yes, 2017
With the fast development of distributed power generations, stability and security have attracted extensive attention in the recent years. As a representative of clean energies, Photovoltaic (PV) systems have been installed extensively worldwide.
null Ruiqing Ma   +7 more
core   +1 more source

Low-Voltage Ride Through Strategy for MMC With Y₀/Y₀ Arrangement Transformer Under Single-Line-to-Ground Fault

open access: yesIEEE Access, 2021
In the offshore wind farm high-voltage direct-current (HVDC) system, the power delivery capability of the onshore modular multilevel converter (MMC) decreases severely under grid fault, which makes the DC-bus voltage increase rapidly and threatens the ...
Xiaohe Wang   +4 more
doaj   +1 more source

Analysis of Low Voltage Ride Through Techniques for Grid-Connected Photovoltaic Systems [PDF]

open access: yes, 2020
This paper presents a comparative analysis of different low voltage ride though strategies proposed for operation of a grid connected two stage photovoltaic system under low voltages.
V, Seshadri Sravan Kumar, Naresh, P.
core   +1 more source

Research and Application of Low Voltage Ride through (LVRT) and the Power Grid Adaptability Testing Device for Frequency Converter

open access: yesJournal of Physics: Conference Series, 2019
Abstract In order to study the response characteristics of converters applied in the field of renewable power integration and motor speed regulation when grid fault appears, the traditional LVRT schemes and effects of converters are analyzed, and the integrated design of AC and DC sources scheme based on power electronics technology is ...
Xu Zaide   +4 more
openaire   +1 more source

LVRT Control Strategy For DC Microgrids Considering the Characteristics of PV/Storage/Load

open access: yesZhongguo dianli, 2019
Low voltage ride-through (LVRT) of grid-connected DC microgrid has been driving academic attentions. Firstly, the structure and operation principle of DC microgrids are developed to obtain the analytical expression of DC bus voltage.
Yan LI   +4 more
doaj   +1 more source

Enabling LVRT Compliance of Electrolyzer Systems Using Energy Storage Technologies

open access: yesBatteries, 2023
This paper presents a comprehensive techno-economic analysis of different energy storage systems (ESSs) in providing low-voltage ride-through (LVRT) support for power electronics-based electrolyzer systems.
Pankaj Saha   +4 more
doaj   +1 more source

Enhanced wind turbine generator fault ride‐through capability by using hybrid on‐load tap changer

open access: yesIET Generation, Transmission & Distribution, 2020
Low‐voltage ride‐through (LVRT) compliance of wind energy conversion systems is one of the significant concerns for both the wind industry and the system operator.
Hazem Karbouj, Zakir Hussain Rather
doaj   +1 more source

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