Results 41 to 50 of about 485 (183)

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

open access: yesEnergies, 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   +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

open access: yesIET 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   +4 more
wiley   +1 more source

Research on Voltage Stability of Grid-Connected Photovoltaic System Based on Double-Side Voltage Feedback Control

open access: yesZhongguo dianli, 2022
In terms of the problem that the grid-connected photovoltaic DC system is unstable during low voltage ride through (LVRT), an improved double-side voltage control strategy is proposed.
Fei XUE   +3 more
doaj   +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

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

open access: yesIET 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   +5 more
wiley   +1 more source

Research on the Control Strategy for Low Voltage Ride-through of Full Power Converter for Wind Turbine

open access: yesKongzhi Yu Xinxi Jishu, 2013
A control strategy of low voltage ride-through(LVRT) for full power converter is studied based on the system structure of 2.5 MW wind turbine with permanent magnet synchronous generator and the requirements of LVRT.
LUO Wenguang   +3 more
doaj  

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

open access: yes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   +3 more
doaj   +1 more source

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

open access: yesIET 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   +3 more
wiley   +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

Analysis and Control of Low-Voltage Ride-Through Capability Improvement for PMSG Based on an NPC Converter Using an Interval Type-2 Fuzzy Logic System

open access: yesElektronika ir Elektrotechnika, 2019
Wind farms must be linked to the grid during the voltage sag. Therefore, the improvement of low-voltage ride-through (LVRT) capability of wind turbine (WT) is a vitally issue. Protection system based on an interval type-2 fuzzy logic system (IT-2 FLC) is
Altan Gencer
doaj   +1 more source

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