Results 61 to 70 of about 513 (169)
EnergiesSince the stator of DFIG-based wind turbines is directly connected to the grid, it is dramatically affected by transient situations that may occur on the grid side. In order to meet grid code requirements, reactive power support must be provided to keep the DFIG connected to the grid during the transient state. To achieve this, Low Voltage Ride Through
M. Kenan Döşoğlu, Muhsin Uğur Doğan
openaire +3 more sources
Nonlinear Modeling and Transient Stability Analysis of SG–PV Infeed Systems
IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.The system stability can be judged by comparing the TEF value with the critical energy at the initial state of early fault recovery, no necessary to wait until late fault recovery. This study provides a system‐level physical picture and a fast transient stability criterion for the transient stability analysis of SG‐PV infeed systems.
Qihao Shen, Meng Zhan
wiley +1 more source
IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.This paper develops a unified short‐circuit framework to systematically evaluate the optimal overcurrent capability (Imax) for grid‐forming (GFM) inverters across 11 European transmission grid subsystems. Based on exponential saturation and capacity‐weighted compliance analysis, the study yields region‐specific Imax recommendations ranging from 2.5 to ...
Ziqian Zhang +2 more
wiley +1 more source
A Grid Voltage Measurement Method for Wind Power Systems during Grid Fault Conditions
Energies, 2014 Grid codes in many countries require low-voltage ride-through (LVRT) capability to maintain power system stability and reliability during grid fault conditions.
Cheol-Hee Yoo +3 more
doaj +1 more source
IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.To address differential protection misoperation/prolonged blocking caused by frequency deviation and aperiodic components in doubly fed induction generator wind farm‐side severe fault currents, a novel adaptive forgetting factor recursive least squares‐based export transformer differential protection scheme with online magnetising inductance estimation
Zichen Wei +3 more
wiley +1 more source
Study on Low Voltage Ride Through for Direct-drive VSCF Wind Power System
Kongzhi Yu Xinxi Jishu, 2010 New grid regulation brings forward the requirements on wind turbines for having Low Voltage Ride Through(LVRT)capability and supplying reactive power compensation to the grid during voltage sag prcoess.
张宪平
doaj
International Journal of Electrical Power & Energy SystemsVoltage sags often disrupt the normal functioning of sensitive equipment and distributed generators (DGs), making voltage sag mitigation based on corresponding assessments crucial. Voltage sag characteristics, including voltage magnitude and sag duration,
Xian-yong Xiao +3 more
doaj +1 more source
Research on the Technology of Low Voltage Ride-through for Grid-connected Photovoltaic Inverter
Kongzhi Yu Xinxi Jishu, 2013 It analyzes the current commonly used LVRT (low voltage ride-through) solutions, presents a new LVRT SPLL (software phase locked loop) technique which is simpler and faster, and designs a grid-connected PV (photovoltaic) inverter based on the SPLL ...
WANG Nan, CHEN Yifeng, WU Hengliang
doaj
Low-voltage ride-through control strategy for permanent magnet synchronous generator under weak grid
Diance yu yibiaoIn order to improve the low-voltage ride-through（LVRT）capability of permanent magnet synchronous generator（PMSG）under weak grid, this paper proposes a low-voltage ride-through control strategy for power support and auxiliary protection of unloading ...
CHEN Zhong, DING Linzhi, GU Chunsong
doaj +1 more source
Ain Shams Engineering JournalThis paper aims to investigate the improvement of the low voltage ride-through (LVRT) in grid-connected photovoltaic (PV) systems by applying the Gold Rush Optimization (GRO) algorithm to design system PI controllers.
Yasmin GH. Mousa +5 more
doaj +1 more source