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DFIG's virtual resistance demagnetization for crowbar less LVRT
2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS), 2017Due 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 +3 more
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Impact of ASD settings in its LVRT behaviour
SPEEDAM 2010, 2010A common matter of concern in industrial installations is that adjustable-speed drives (ASD) trip due to voltage sags. ASD manufacturers are including more and more in these devices settings related to control strategies (e.g. allowable DC voltage levels, etc) in order to improve their Low Voltage Ride Through (LVRT).
C. Carrillo +4 more
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Low voltage ride through(LVRT) research of DFIG
2013 25th Chinese Control and Decision Conference (CCDC), 2013Nowadays Doubly Fed Induction Generator (DFIG) is used in variable speed wind power plants extensively. Doubly fed induction generator (DFIG) has many advantages such as low cost, reduced losses with an improved efficiency, variable speed operation and improved active and reactive power control capabilities.
Li Lianbing, Zhang Peng
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Study on LVRT Decoupling Dual Synchronous Current Controller
Applied Mechanics and Materials, 2014Under three-phase grid asymmetric fault conditions, use traditional PI controller of PV inverters to inject symmetric current positive sequence into the grid, ignoring the impact of the negative sequence current on LVRT, thus traditional PI controller does not apply to three-phase grid asymmetric faults.
Tian Fa Liao +5 more
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Wind turbine modeling, LVRT field test and certification
2011 IEEE Power and Energy Society General Meeting, 2011The need to validate wind turbine models for the use in grid integration studies is addressed in an increasing number of grid codes. In several countries (Spain, Australia, UK, Germany) requirements for simulation models are now required for the grid access of wind turbines.
Jens Fortmann +3 more
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DC Stage Modelling for LVRT Capability in Photovoltaic Systems
IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, 2021The design of control algorithms for power converters requires the modeling of different power stages. The selection of the appropriate models must consider the trade-off between accuracy and complexity according to the application to be analyzed. In grid-connected photovoltaic (PV) systems, the model for the PV panels array and the DC booster can be ...
David J. Rincon +3 more
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Study on Transient Characteristic of the DFIG LVRT
Advanced Materials Research, 2013In 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
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Research on LVRT capability of DFIG with demagnetization control
2013 IEEE Energy Conversion Congress and Exposition, 2013With 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 +3 more
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LVRT Capability of DFIGs in Interconnected Power Systems
2014This 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
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Coordinating control method to improve LVRT ability of PMSG
2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2018The 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 +5 more
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