Results 41 to 50 of about 645 (112)

Low Voltage Ride Through Enhancement Based on Improved Direct Power Control of DFIG under Unbalanced and Harmonically Distorted Grid Voltage [PDF]

Journal of Operation and Automation in Power Engineering, 2016
In the conventional structure of the wind turbines along with the doubly-fed induction generator (DFIG), the stator is directly connected to the power grid.
Ahmadreza Nafar, Gholam Reza Arab Markadeh, Amir Elahi, Reza pouraghababa   +3 more
doaj  

Improved Segmented Control Strategy for Continuous Fault Ride-Through of Doubly-Fed Wind Turbines

Energies
Aiming at the transient overcurrent problem faced by doubly-fed induction generators (DFIGs) during continuous voltage fault ride-through, a segmented control strategy based on the rotor side converter (RSC) is proposed.
Tie Chen, Yifan Xu, Yue Liu, Junlin Ren, Youyuan Fan   +4 more
doaj   +1 more source

Fault ride-through coordinated control strategy for offshore wind power via flexible low-frequency transmission system

电力工程技术
The offshore wind power via flexible low-frequency transmission (FLFT) system based on the modular multilevel matrix converter (M3C) faces power surplus and stability risks following faults on the power frequency grid side.
Nianwen XIANG, Hailong CHENG, Shouhong YE, Bingbing SHAO, Shulai WANG, Yi LU   +5 more
doaj   +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

Simulation Research of Low-voltage Ride Through Technology of Direct Drive Type Wind Power System

Gong-kuang zidonghua, 2011
The paper gave topological structure of permanent magnet direct drive type wind power system, analyzed working principle and topological structure of DC unloading circuit, established model of permanent magnet wind power system, and constructed ...
HAN Guo-qing
doaj  

Fault Ride-Through Control Strategy for Variable Speed Pumped Storage Unit with Full-Size Converter

Applied Sciences
Fault ride-through is a prerequisite for ensuring continuous operation of a variable-speed pumped storage unit with a full-size converter (FSC-VSPU) and providing support for the renewable energy and power grid.
Huabo Shi, Lijie Ding, Xueyang Zeng, Yuhong Wang, Pengyu Pan, Gang Chen, Yangtao Liu, Jianquan Liao   +7 more
doaj   +1 more source

Voltage Support Capacity Improvement for Wind Farms with Reactive Power Substitution Control

CSEE Journal of Power and Energy Systems
Generally, voltage support at the point of common coupling (PCC) of a wind farm is achieved through centralized static var generators (SVGs). Since the reactive power requirements occupy their capacity in a steady state, the reactive power support ...
Yuegong Li, Guorong Zhu, Jianghua Lu, Hua Geng   +3 more
doaj   +1 more source

Low‐voltage ride‐through control strategy for flywheel energy storage system

Energy Science & Engineering
Due to its high energy storage density, high instantaneous power, quick charging and discharging speeds, and high energy conversion efficiency, flywheel energy storage technology has emerged as a new player in the field of novel energy storage.
Xuechen Zheng, Zhenkui Wu, Gengling Song, Jihong Zhang, Peihong Yang, Zilei Zhang, Xingsheng Lu   +6 more
doaj   +1 more source

Review of low voltage ride‐through technology of doubly‐fed induction generator

The Journal of Engineering, 2018
In recent years, with the increasing of wind power development, the demand for low voltage ride‐through (LVRT) technology was proposed to ensure the safe and reliable operation of the power system. The key issue of LVRT strategy for doubly‐fed induction generator (DFIG) varies according to the network synchronisation modes.
Lele Niu, Xiao Wang, Linlin Wu, Feng Yan, Man Xu   +4 more
openaire   +2 more sources

An Adaptive Series-Dynamic-Resistor-Based Protection Scheme for Brushless Doubly- Fed Induction Generator Under Asymmetrical Fault Conditions

IEEE Access
Low-voltage ride-through (LVRT) is one of the most important criteria for integrating wind energy into the power grid. Based on grid connection codes, wind generators must remain connected during fault conditions.
Mahyar Gholizadeh, Amir Ghasemkhani, Sajjad Tohidi, Ashknaz Oraee, Hashem Oraee, Ehsan Najafi   +5 more
doaj   +1 more source