Results 71 to 80 of about 7,394 (245)

Improved DFIG Capability during Asymmetrical Grid Faults [PDF]

, 2015
In the wind power application, different asymmetrical types of the grid fault can be categorized after the Y/d transformer, and the positive and negative components of a single-phase fault, phase-to-phase fault, and two-phase fault can be summarized. Due
Blaabjerg, Frede, Zhou, Dao
core   +2 more sources

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

Demodulation Type Single-Phase PLL with DC Offset Rejection [PDF]

, 2020
International audienceThis Letter proposes demodulation type PLL for phase and frequency estimation of single‐phase system that can reject DC offset. Using results from the adaptive estimation literature, this Letter proposes a linear parametric model ...
Ahmed, Hafiz, Benbouzid, Mohamed
core   +1 more source

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

IET 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, Muhammad Ahsan Zamee, M. J. Hossain, Md. Biplob Hossain, Md. Ahasan Habib   +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

Elektronika 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

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

Journal 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, Liu Yang, Xu Jingmin, Xiao Qi, Zhu Zhijie   +4 more
openaire   +1 more source

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

IET 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, Chih‐Ming Hong, Yitong Li, Fu‐Sheng Cheng   +3 more
wiley   +1 more source

Wind–Storage Coordinated Control Strategy for Suppressing Repeated Voltage Ride-Through of Units Under Extreme Weather Conditions

Energies
In practical engineering, large-scale wind power integration typically requires long-distance transmission lines to deliver power to load centers. The resulting weak sending-end systems lack support from synchronous power sources.
Yunpeng Wang, Ke Shang, Zhen Xu, Chen Hu, Benzhi Gao, Jianhui Meng   +5 more
doaj   +1 more source

Power Electronics – The Key Technology for Renewable Energy System Integration [PDF]

, 2015
The energy paradigms in many countries (e.g. Germany and Denmark) have experienced a significant change from fossil-based resources to clean renewables (e.g. wind turbines and photovoltaics) in the past few decades.
Blaabjerg, Frede, Ma, Ke, Wang, Xiongfei, Yang, Yongheng   +3 more
core   +2 more sources

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

IET 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, Qian Zhou, Yongyong Jia, Dajiang Wang, Jianhui Meng, Xintong Dong, Junyuan Zhang   +6 more
wiley   +1 more source