Results 141 to 150 of about 275 (163)

Network-Sensitivity-Based Coordinated Volt-VAR Control for LVRT/HVRT Enhancement in Hybrid Renewable Energy Integrated SG-PV Systems

Despite the wide range of Volt-VAR coordination techniques proposed for inverter-based resources, existing approaches often suffer from inadequate post-fault recovery performance and inefficient utilization of available inverter headroom. These limitations become more critical under high renewable-energy penetration, where low-voltage ride-through ...
Mohammad Qayyum Ahmad Suhail, Muhammad Noman Ashraf, Ammar Atif Abdalla Ibrahim, Khalifa Al Hosani, MOHAMED EL MOURSI   +4 more
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Hierarchical Event-Triggered MPC-Based Coordinated Control for HVRT and Voltage Restoration of Large-Scale Wind Farm

IEEE Transactions on Sustainable Energy, 2022
Qiuwei Wu, Canbing Li, Bin Zhou
exaly   +2 more sources

HVRT control strategy for PMSG-based wind turbine with dynamic chopper resistance

2023
With the increasing penetration of wind power, wind turbine is required to have fault ride through capability during grid fault. To improve the direct current (DC) voltage suppression effect of traditional high voltage ride through (HVRT) control scheme with regard to chopper resistance, this paper proposes an HVRT control strategy based on dynamic ...
Yanhui Qin, Xiaolin Liu, Zhichao Yang, Bingtuan Gao   +3 more
openaire   +1 more source

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

2024 IEEE Applied Power Electronics Conference and Exposition (APEC)
Alian Chen, Qicai Ren, Xianzhe Pang
exaly   +2 more sources

Evolution Mechanism Analysis of Continuous HVRT/LVRT Chain Off-Grid Caused by Wideband Oscillation

2025 5th International Conference on Electrical Engineering and Control Science (IC2ECS)
Honglu Xu, Ni Zhen, Liping Gao, Zixuan Guo   +3 more
exaly   +2 more sources

Development of LVRT and HVRT control strategy for DFIG based wind turbine system

2010 IEEE International Energy Conference, 2010
With a rapid increase of large wind farms across the globe, a problem associated with the wind turbine is voltage fluctuation of the grid during power generation. Voltage fluctuation could be over voltage or voltage dips and under those conditions the performance of the wind turbines is normally deteriorated. Over voltage withstanding capability of the
Ayaz Ahmad, Rajaji Loganathan
openaire   +1 more source

Coordinated droop control and adaptive model predictive control for enhancing HVRT and postevent recovery of large-scale wind farm

Qiuwei Wu, Wei Juan, Vladimir Terzija
exaly   +2 more sources

LVRT and HVRT analysis of Grid connected Solar PV system

2023 IEEE International Conference on Power Electronics, Smart Grid, and Renewable Energy (PESGRE), 2023
J. Sreedevi, Honnesh C Sannappaiah
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Dynamic equivalent modeling of wind farm considering HVRT characteristic

2022 IEEE Sustainable Power and Energy Conference (iSPEC), 2022
Yanhui Qin, Baoyu Zhai, Qi Yang, Zian Li, Zhichao Yang, Bingtuan Gao   +5 more
openaire   +1 more source

[The genomic organization and localization on the chromosomes of the HvRT family of DNA repetitive sequences in barley].

TSitologiia i genetika, 1990
HvRT family of repetitive DNA sequences from barley genome appears to have complex hierarchical organization. Tandem repetition of 118-bp monomers constitutes lower level of HvRT-family organization. Amplification units of the higher level consist of several contiguous 118-bp monomers.
D A, Belostotskiĭ, A M, Kolchinskiĭ, E V, Anan'ev   +2 more
openaire   +1 more source