Results 61 to 70 of about 1,238 (203)
Nowadays stochastic occurrence of main grid disturbances (LVRT, FRT) leads to high level vibrational excitation of the drive train during operation of wind turbines. Regardless of the drivetrain design as a direct, hybrid or multi-stage geared one in this case high mechanical and electrical stresses should be ...
null Dr.-Ing. Jan Wenske +1 more
openaire +1 more source
ABSTRACT This paper presents a comprehensive review of recent global research on voltage control in distribution systems with high penetration of distributed generation. First, it examines voltage regulation challenges in distribution systems that integrate distributed generation.
Htutzaw Hein +6 more
wiley +1 more source
Low Voltage Ride through Enhancement for Wind Turbines Equipped With DFIG under Symmetrical Grid Faults [PDF]
In modern power systems with significant penetration of wind-turbines (WTs), improvement of low voltage ride through (LVRT) capability of WTs equipped with doubly-fed induction generators (DFIGs) is an important issue.
Justo , Jackson J., Mwasilu, Francis A.
core +1 more source
Based on the characteristic of wind turbine LVRT influencing system power balance, this study proposes a method utilising active LVRT control to achieve transient stability. A transient stability control strategy is developed by integrating active LVRT with deep reinforcement learning while introducing a disturbance‐level‐based coordinated control ...
Guangyao Yu +6 more
wiley +1 more source
On the compliance of low-voltage ride-through ability of wind turbine generators [PDF]
As the number of installed wind turbines in the power system increases, it becomes increasingly necessary to ensure the wind turbines can meet the requirement of low-voltage ride-through (LVRT). Currently, there are several techniques to help the
Wang, Zheng
core
This paper studies the fault characteristics of the energy storage power station's transmission lines and its influence on the traditional phase comparison distance protection, under different charging and discharging operating conditions. An improved phase comparison distance protection based on polarisation voltage phase reconstruction is proposed ...
Haoyu Zhu +4 more
wiley +1 more source
The Research of Verifying Low Voltage Ride through of Double-Fed Wind Turbine Generator System and Voltage Dropping Simulation [PDF]
In order to maintain the stable operation of grid system, the grid company requires wind turbine generator system with low-voltage ride through (LVRT) capability.
Lei Chen +3 more
core +1 more source
Sequence extraction-based low voltage ride-through control of grid-connected renewable energy systems [PDF]
Various faults can cause voltage sag in the power grid at different voltage levels across the network. Balanced or unbalanced voltage sags lead to grid instability by tripping off a large number of wind or solar power plants from the electric power ...
Achour, Y. +17 more
core +1 more source
Preventive Control Considering Stability Constraints for Repeated Low Voltage Ride Through Events
This paper proposes a voltage stability preventive control strategy that accounts for repeated low‐voltage ride‐through characteristics. The method first partitions the system and constructs a short‐term voltage stability assessment index that effectively incorporates repetitive LVRT events, while offline generating a corresponding set of anticipated ...
Zhichong Cao +5 more
wiley +1 more source
Aiming at the problem of low voltage ride through (LVRT) of the generation side uncontrollable rectifying permanent magnet wind turbine in the low voltage microgrid, the operating characteristics of the permanent magnet synchronous generator (PMSG) wind ...
Haichuan ZHAO +3 more
doaj +1 more source

