Results 201 to 210 of about 7,162 (246)

A Stable and Ultrafast Control for Multiparallel Grid-Tied SiC Inverters With LVRT Capability Considering Cable Impedance

IEEE transactions on power electronics
The stability of multiparalleled grid-tied inverters remains a challenging issue especially during low-voltage ride-through (LVRT) in the presence of grid impedance.
Xuli Quan, Xiaofeng Dong, Hui Li
semanticscholar   +1 more source

State of Charge Management for Grid-Connected PV with Supercapacitor System Considering LVRT Operation

European Conference on Cognitive Ergonomics, 2023
This paper presents a state of charge (SOC) management strategy to ensure low-voltage ride-through (LVRT) services of a grid-connected photovoltaic (PV) with a supercapacitor (SC) energy storage system (PVSS).
Paychuda Kritprajun, Leon M. Tolbert, Jingjing Sun, Jingxin Wang, Nattapat Praisuwanna, Yunting Liu, Maximiliano F. Ferrari   +6 more
semanticscholar   +1 more source

Study on Transient Characteristic of the DFIG LVRT

Advanced Materials Research, 2013
In order to analyze the operational capability of the low voltage ride through ( LVRT) of a gird-connected wind turbine with doubly fed induction generator (DFIG) effectively, it is necessary to evaluate operation characteristics of DFIG under a grid fault.By using the transient principle of the flux of stator and rotor, the expressions of transient ...
Jian Hua Zhang, Rong Luan, Hao Ran Shen
openaire   +1 more source

Transient Stability Analysis and Improved Control Strategy for DC-Link Voltage of DFIG-Based WT During LVRT

IEEE transactions on energy conversion, 2022
In this paper, the transient stability for dc-link voltage of doubly-fed induction generator (DFIG)-based wind turbine (WT) is studied in detail during low voltage ride-through (LVRT).
Shiyue Chen, Jun Yao, Jinxin Pei, Yuan Liu, Ruikuo Liu, Sen Huang, Zhaoyang Chen   +6 more
semanticscholar   +1 more source

Research on LVRT capability of DFIG with demagnetization control

2013 IEEE Energy Conversion Congress and Exposition, 2013
With the stator directly connected to the grid, doubly-fed induction generator is very sensitive to grid disturbance. Demagnetization control depresses the influence of grid fault by accelerating the damping of natural stator flux linkage, improving the performance of doubly-fed induction generator.
Linyuan Zhou, Jinjun Liu, Sizhan Zhou, Yangque Zhu   +3 more
openaire   +1 more source

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

Energies
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.
M. Döşoğlu, M. U. Doğan
semanticscholar   +1 more source

Matching Analysis of LVRT Grid Code and Injection Current Dependent Voltage Response of WTC Connected to High Impedance AC Grid

IEEE transactions on energy conversion, 2022
With increasing penetration of wind power, wind turbines are usually required to stay connected and provide reactive current support according to LVRT (low voltage ride through) grid code during grid faults.
Qi Hu, Feng Ji, Fan Ma, Yan Zhang, Lijun Fu   +4 more
semanticscholar   +1 more source

LVRT Capability of DFIGs in Interconnected Power Systems

2014
This chapter presents a new control scheme for the enhancement of the low-voltage ride-through (LVRT) capability of doubly-fed induction generators (DFIGs). LVRT capability is provided by extending the range of operation of the controlled system to include typical post-fault conditions.
Jahangir Hossain, Hemanshu Roy Pota
openaire   +1 more source

Coordinating control method to improve LVRT ability of PMSG

2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2018
The paper firstly models the Permanent Magnet Synchronous Generation System (PMSG) and analyzes the low voltage problem. Based on the traditional vector control strategy, the paper performs combining grid-side reactive power compensation control strategy, the DC voltage reference value correcting controller and the pitch angle control strategy. Finally,
Xuemei Zheng, Yidan Liu, Zhuang Liu, Yangman Li, Chao Wang, Yong Feng   +5 more
openaire   +1 more source

DFIG wind turbine modeling and validation for LVRT behavior

IEEE PES Innovative Smart Grid Technologies, 2012
As the increasing of installed capability of wind power in power system, the dynamic wind turbine models are required for wind turbine and wind farm stability assessment. For this reason, the wind turbine models have to be simulated accurately compare to the wind turbine operation behavior especially during grid fault.
null Jing He, null Qing Li, null Shiyao Qin, null Ruiming Wang   +3 more
openaire   +1 more source