Results 71 to 80 of about 1,240 (203)

Mitigating Grid Stability Risks From Large AI Data Centres: A Three‐Mode Supervisory Control Framework for Centralized UPS Systems

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
A three‐mode supervisory control framework for centralized data centre UPS systems mitigates the grid stability risks posed by large AI facilities during transmission faults. The framework coordinates current‐limited reactive‐priority allocation, a minimum‐draw policy to limit aggregate load withdrawal and rate‐limited post‐fault recovery, extended to ...
Mohamed Shamseldein
wiley   +1 more source

Improving Low Voltage Ride-through Capabilities for Grid Connected Wind Turbine Generator

open access: yes, 2014
Low Voltage Ride-Through (LVRT) is one of the most dominant grid connection requirements to be met by Wind Energy Conversion Systems (WECS). In presence of grid voltage dips, a mismatch is produced between the generated active power and the active power ...
Tank, Ishwari   +2 more
core   +1 more source

Strengthening Renewable‐Rich Weak Grids Through Improved Voltage Stability and Fault‐Ride Through Capability

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
To enhance grid stability and resilience in high renewable energy scenarios, this research proposes a cascaded control optimization framework guided by a novel dynamic resilience metric. Validated on a representative Australian grid, the framework significantly reduced voltage overshoot and extended fault clearing times, offering a robust solution for ...
Sadnan Sakib   +4 more
wiley   +1 more source

A Novel ALTSRCFNN‐STSMC Approach for Enhancing Ride‐Through in Hybrid Renewable Systems

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
Simulation results demonstrate that the proposed method reduces voltage recovery time by approximately 25% and improves transient voltage stability by about 15% while satisfying low‐voltage ride‐through (LVRT) grid code requirements. ABSTRACT This paper develops a hybrid adaptive control framework for improving low‐voltage ride‐through (LVRT ...
Kai‐Hung Lu   +3 more
wiley   +1 more source

Enhancing Low Voltage Ride Through of Microinverters

open access: yes
Photovoltaic-based distributed generation (DG) systems are increasingly integrated into the global electrical grid. The existence of numerous DGs in the electrical grid gives rise to concerns about vulnerability, particularly with regard to voltage sag ...
Sharida, Ali   +3 more
core   +1 more source

Hierarchical Response Control Method for Voltage Support in DFIGs Considering Fatigue Loads

open access: yesIET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
This paper proposes a hierarchical response control (HRC) method to address the increased fatigue load on wind turbines during reactive power support for grid voltage stability. By establishing a fatigue sensitivity model and dynamically adjusting control parameters, the method optimally allocates reactive power while avoiding critical shaft ...
Bin Yang   +7 more
wiley   +1 more source

Enhancement of Low Voltage Ride Through (LVRT) Capability of DFIG-Based Wind Turbines with Enhanced Demagnetization Control Model

open access: yesEnergies
Since 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

open access: yesIET 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

A Grid Voltage Measurement Method for Wind Power Systems during Grid Fault Conditions

open access: yesEnergies, 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

An Overcurrent Suppression Strategy for Distributed Photovoltaic Inverters Under Unbalanced Faults Based on Adaptive Linear Active Disturbance Rejection Control

open access: yesIET Smart Grid, Volume 9, Issue 1, January/December 2026.
After distributed photovoltaic (PV) systems are connected to the distribution network, the overcurrent problem caused by transient faults instantaneously threatens the safety of PV inverters and other equipment. This paper proposes a comprehensive control method that combines active‐loop adaptive linear active disturbance rejection control (A‐LADRC ...
Dandan Zhu   +6 more
wiley   +1 more source

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