Results 61 to 70 of about 22,749,812 (200)

Voltage-induced stresses during Low Voltage Ride Through (LVRT) in the drive train of wind turbines with DFIG

RE&PQJ
Nowadays   stochastic   occurrence   of   main   grid   disturbances (LVRT,  FRT)  leads  to  high  level  vibrational  excitation  of  the drive train during operation of wind turbines. Regardless  of  the  drivetrain  design  as a  direct,  hybrid  or  multi-stage  geared  one  in  this  case  high  mechanical  and  electrical stresses should be ...
null Dr.-Ing. Jan Wenske, null Prof. i.R. Dr.-Ing. habil. Ulrich Beckert   +1 more
openaire   +1 more source

Active Low‐Voltage Ride‐Through Control Strategy for Wind Turbines to Improve Transient Stability in Power Systems

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
Based on the characteristic of wind turbine LVRT influencing system power balance, this study proposes a method utilising active LVRT control to achieve transient stability. A transient stability control strategy is developed by integrating active LVRT with deep reinforcement learning while introducing a disturbance‐level‐based coordinated control ...
Guangyao Yu, Xiaolin Zheng, Sixuan Wang, Zhenbin Li, Shupeng Li, Naiyuan Liu, Zhenglong Sun   +6 more
wiley   +1 more source

Simulation of a Low-Voltage Direct Current System Using T-SFCL to Enhance Low Voltage Ride through Capability

Energies, 2022
Owing to the increasing penetration level of distributed energy resources (DER) and direct current (DC) load, the usage of low-voltage direct current (LVDC) systems has expanded to achieve efficient operations.
Kwang-Hoon Yoon, Joong-Woo Shin, Jae-Chul Kim, Hyeong-Jin Lee, Jin-Seok Kim   +4 more
doaj   +1 more source

Improved Phase Comparison Phase‐to‐Phase Distance Protection for Transmission Lines Connected to Energy Storage Power Stations Based on Polarisation Voltage Phase Reconstruction

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper studies the fault characteristics of the energy storage power station's transmission lines and its influence on the traditional phase comparison distance protection, under different charging and discharging operating conditions. An improved phase comparison distance protection based on polarisation voltage phase reconstruction is proposed ...
Haoyu Zhu, Xiaoran Wang, Chunju Fan, Yan Hu, Nengling Tai   +4 more
wiley   +1 more source

Low Voltage Ride through Enhancement for Wind Turbines Equipped With DFIG under Symmetrical Grid Faults [PDF]

, 2018
In modern power systems with significant penetration of wind-turbines (WTs), improvement of low voltage ride through (LVRT) capability of WTs equipped with doubly-fed induction generators (DFIGs) is an important issue.
Justo , Jackson J., Mwasilu, Francis A.
core  

Preventive Control Considering Stability Constraints for Repeated Low Voltage Ride Through Events

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes a voltage stability preventive control strategy that accounts for repeated low‐voltage ride‐through characteristics. The method first partitions the system and constructs a short‐term voltage stability assessment index that effectively incorporates repetitive LVRT events, while offline generating a corresponding set of anticipated ...
Zhichong Cao, Cheng Liu, Chao Jiang, Rijun Wang, Jianyi Che, Rundong Tian   +5 more
wiley   +1 more source

Research on Low Voltage Ride Through for Small Direct-driven Permanent Magnet Wind Turbine in Low Voltage Microgrid

发电技术, 2020
Aiming at the problem of low voltage ride through (LVRT) of the generation side uncontrollable rectifying permanent magnet wind turbine in the low voltage microgrid, the operating characteristics of the permanent magnet synchronous generator (PMSG) wind ...
Haichuan ZHAO, Yandong LU, Haokang ZHENG, Zuoxia XING   +3 more
doaj   +1 more source

Value‐Based Reinforcement Learning for Inter‐Area Oscillations Mitigation in PV‐Integrated Power Systems

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
Enhanced critic‐only DQN with smoothing enables continuous SVC control for damping inter‐area oscillations. The state selection via participation and residue analysis captures critical key modes. Orthogonal array efficiently tunes hyperparameters with low cost.
Gunawan Dewantoro, Faizal Hafiz, Akshya Swain, Nitish Patel   +3 more
wiley   +1 more source

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

, 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, Chen, Hsin-Chih, Lee, Chia-Tse, Cheng, Po-Tai, Teodorescu, Remus; id_orcid, Blaabjerg, Frede; id_orcid   +5 more
core   +1 more source

Higher‐Order Statistics Based Pilot Protection Scheme for Wind Farm Transmission Line Connected to VSC Station

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper analyses the distribution of fault current samples for both external and internal faults conditions and quantifies the differences in the features by using the third‐order cumulant and kurtosis. On this basis, a pilot protection scheme was proposed for transmission lines wind farm transmission line connected to VSC station.
Ziliang Wu, Bowei Zou, Bolun Pan, Yuhan Yang, Jia Zhu, Yinhong Li, Luliang Zhang, Xianzhong Duan   +7 more
wiley   +1 more source