Results 21 to 30 of about 2,773 (216)

Influence of Converter DC Bus Overvoltage on Wind Turbine High Voltage Ride Through Capabilities

open access: yesZhongguo dianli, 2020
Off-grid occurred in a wind farm caused by converter fault during field test of the DFIG (doubly feed induction generator) high voltage ride through (HVRT) capabilities.
Guangru ZHANG   +6 more
doaj   +1 more source

Flexiable Fault Ride Through Capability Improvement of Semi-Direct Drive Wind Power System Based on Improved Grid-Side Control Strategy

open access: yes南方能源建设, 2023
[Introduction] In order to improve the flexible fault ride through (FFRT) capability of semi-direct drive wind power system, this paper proposes an improved grid-side control strategy with reactive power priority.
Jiangtao GUO, Shuo CHEN, Liling HUANG
doaj   +1 more source

Identification method of cascading failure in high-proportion renewable energy systems based on deep learning

open access: yesEnergy Reports, 2022
A high proportion of new energy sources are connected to the grid, which not only alleviates the energy shortage, but also brings hidden dangers to the safe and stable operation of the grid. Aiming at the inadequate consideration of uncertainty caused by
Yuhong Zhu   +5 more
doaj   +1 more source

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

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

Theoretical Study on Control Strategy of Grid-Connected High Voltage Ride Through in Doubly-Fed Wind Farm

open access: yesIEEE Access, 2019
Aiming at the problem of high voltage disconnection when doubly-fed wind farms are merged into weak power grids, this paper researches the theory of rotor excitation control and proposed an additional control model of DFIG grid-connected rotor flux based
Xinyu Liu, Xianwei Li, Donghong Jiao
doaj   +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

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

Study on high voltage ride through control strategy of PMSG-based wind turbine generation system with SCESU

open access: yesThe Journal of Engineering, 2019
Regarding PMSG-based wind turbine generation system, this study proposes a super-capacitor energy storage unit (SCECU) connected parallel to the DC-link of the back-to-back converter to enhance its high voltage ride through performance.
Guangchen Liu   +4 more
doaj   +1 more source

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