Results 21 to 30 of about 2,959 (254)

MPC-based DC-link voltage control for enhanced high-voltage ride-through of offshore DFIG wind turbine

open access: yesInternational Journal of Electrical Power & Energy Systems, 2021
Abstract To deal with the DC-link overvoltage during high-voltage ride-through (HVRT) of the wind turbine, a coordinated DC-link voltage control (CDVC) scheme is proposed for enhancing the HVRT performance of offshore doubly-fed induction generator (DFIG) wind turbines equipped with the supercapacitor energy storage system (SESS).
Wei, Juan   +5 more
openaire   +2 more sources

Analysis of Transient Voltage-Frequency Dynamic Coupling Mechanism of High-Proportion Renewable Energy Sending End System Under Commutation Failure Faults [PDF]

open access: yesDianli jianshe
[Objective] Aiming at the new challenge of unclear transient voltage and system frequency operation risks faced by sending-end power systems with a high proportion of renewable energy after commutation failure, this paper reveals the dynamic coupling ...
GAO Shang, YIN Chunya, LIU Wan, LI Xiaozhu, HAN Lu, ZHANG Gaohang
doaj   +1 more source

High Voltage Ride Through Strategy For DFIG Considering HVDC System Converter Blocking

open access: yesCoRR, 2019
This paper presents a P-Q coordination based high voltage ride through (HVRT) control strategy for double fed induction generators (DFIGs) based on a combined Q-V control and P-V de-loading control. The active/reactive power injection effect of DFIG on transient overvoltage is firstly analyzed and the reactive power capacity evaluation of DFIG ...
Changping Zhou   +3 more
openaire   +2 more sources

Research on Low Voltage Ride through Control of a Marine Photovoltaic Grid-Connected System Based on a Super Capacitor

open access: yesEnergies, 2022
With the increase of photovoltaic penetration rate, the fluctuation of photovoltaic power generation affects the reliability of ship power grids. Marine PV grid-connected systems with high penetration rates should generally have a low voltage ride ...
Shihao Wang   +3 more
doaj   +1 more source

Safety Voltage Control Strategy for High Voltage Ride-Through of Doubly Fed Induction Generator (DFIG) [PDF]

open access: yesAdvances in Engineering Research, 2015
a DFIG high voltage ride-through method with the consideration for the safe operation voltage of the generator unit is proposed in the article. Based on the dynamic reactive support capability of DFIG, during grid voltage swell, the reactive powers outputted by the grid-side converter and the generator stator are concertedly controlled so as to keep ...
openaire   +1 more source

Fault ride-through control strategy of H-bridge cascaded energy storage system [PDF]

open access: yesE3S Web of Conferences, 2020
The cascaded energy storage system has received extensive attention in areas such as new energy consumption, maintaining stable operation of the power grid, and supporting black start due to its advantages such as high access voltage level, large single ...
Yin Shi   +4 more
doaj   +1 more source

Research on Voltage Ride-Through of Photovoltaic Grid-Connected System Based on Superconducting Magnetic Energy Storage

open access: yesIEEE Open Access Journal of Power and Energy
To enhance the voltage fault ride-through (VFRT) capability of grid-connected photovoltaic (PV) systems under grid voltage faults, this paper proposes an innovative solution using Superconducting Magnetic Energy Storage (SMES).
Hongchong Yang, Maimaitireyimu Abulizi
doaj   +1 more source

Fault-ride Through Control Strategy of Multi-terminal High Voltage DC Systems

open access: yesIFAC-PapersOnLine, 2018
Abstract A coordinate control strategy is proposed to secure fault-ride through (FRT) for voltage source converter (VSC) based multi-terminal high voltage dc transmissions (MTDC) integrating the offshore wind farms (OWFs). The short circuit fault in the ac grid obviously reduces the voltage at the connection point which, in turn, block the power ...
Jing Li   +5 more
openaire   +1 more source

A Comprehensive Review on Voltage Stability in Wind-Integrated Power Systems

open access: yesEnergies
The fast growth of the world’s energy demand in the modernized world has stirred many countries around the globe to focus on power generation by abundantly available renewable energy resources.
Farhan Hameed Malik   +6 more
doaj   +1 more source

Fault Traversal Strategy for Large-scale Photovoltaic Power Station via Flexible DC Grid-connected System

open access: yes工程科学与技术, 2023
Large-scale PV adopts DC overhead lines for flexible DC grid connection is one of the trends of new energy grid-connected in the future. However, the high probability of DC short-circuit fault of overhead line can easily lead to the disconnection of ...
Yinfeng SUN   +5 more
doaj  

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