Results 171 to 180 of about 5,131 (213)

Model Predictive Control for DFIG to Improve the LVRT Capability Under Severe Asymmetrical Grid Faults

2023 IEEE International Conference on Predictive Control of Electrical Drives and Power Electronics (PRECEDE), 2023
Low-voltage ride-through (LVRT) capability of the doubly fed induction generator (DFIG) is seen as insufficient under severe grid faults due to it being prone to suffering from overcurrent.
Jia-Teng Gu, Zhen-Bin Zhang, Zhen Li, José Raúl Rodríguez Rodríguez   +3 more
semanticscholar   +1 more source

Evaluation of LVRT Control Strategies for Offshore Wind Farms

2020
The penetration of offshore wind farms (OWF) connected to the electric utility grid through voltage source converter-based high-voltage DC (VSC-HVDC) increased year by year in some countries. However, penetration of HVDC-connected OWF affects electric power system voltage and frequency stability during a grid disturbance, which enforces system ...
M. M. Kabsha, Zakir Rather
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

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

DFIG's virtual resistance demagnetization for crowbar less LVRT

2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS), 2017
Due to the increased renewable power penetration level renewable power plants have to provide low-voltage ride-through (LVRT) capability with simultaneous dynamic voltage support, to ensure the grid stability during grid faults. Concerning doubly fed induction generator (DFIG) based wind energy conversion systems (WECS) large transient electromotive ...
Andreas Uphues, Kilian Notzold, Ralf Wegener, Stefan Soter   +3 more
openaire   +1 more source

Consider the LVRT capability of wind turbines in microgrid

Advances in Engineering Technology Research
During the grid connection and power generation process of wind turbine,voltage drops often occur due to grid faults,which may affect the stable operation of the grid. To ensure the stable operation of the grid,wind turbines should have the ability to withstand low voltage.
Junxian Lin, Zhiqiang Xu, Xin Yang, Yiqi Cai, Chenxi Huang   +4 more
openaire   +1 more source

Modeling and LVRT analysis of DFIG wind power system

2015 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2015
This paper presents the modeling of the wind power system and low voltage ride through (LVRT) techniques for doubly-fed induction generator (DFIG) wind energy system. Firstly the equivalent circuit and power transfer principle of DFIG are reviewed. A simulation model of DFIG system has been constructed in PSCAD, where the gird-side double closed loop ...
Huiqing Wen, Sijie Cai
openaire   +1 more source

A Fault Tolerant Control Strategy for Three-Level T-Type Inverter in LVRT/HVRT Operation

Applied Power Electronics Conference
Three-level T-type inverter (3LT2I) has been widely applied in photovoltaic (PV) system. When the grid fault occurs, the low-voltage ride-through (LVRT) and high-voltage ride-through (HVRT) capabilities of 3LT2I are the key to increase the system ...
Xian-Zhe Pang, Shu-Mei Chi, Qicai Ren, Alian Chen   +3 more
semanticscholar   +1 more source

Design of LVRT capability for grid connected PV system

2017 International Conference on Intelligent Computing, Instrumentation and Control Technologies (ICICICT), 2017
This paper present the protective system for PV grid connected system using LVRT capability. We know that increasing capacity of PV systems in the grid, the grid-connected PV systems may get negative impacts on the grid in case of a disturbance. In this condition, a strategy of LVRT is given to protect the system.
Snehal S Bhangale, Nilesh Patel
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