Results 21 to 30 of about 3,905 (208)

A Novel Low Voltage Ride-Through Technique of Three-Phase Grid-Connected Inverters Based on a Nonlinear Phase-Locked Loop

open access: yesIEEE Access, 2019
In this paper, a novel low voltage ride-through (LVRT) technique for three-phase grid-connected inverters is proposed. The proposed technique consists of two parts: a nonlinear phase locked loop based on complex-coefficient filters (NLCCF-PLL) and an ...
Guangyu Sun   +4 more
doaj   +1 more source

Low Voltage Ride-Through of Two-Stage Grid-Connected Photovoltaic Systems Through the Inherent Linear Power-Voltage Characteristic [PDF]

open access: yes, 2017
In this paper, a cost-effective control scheme for two-stage grid-connected PhotoVoltaic (PV) systems in Low Voltage Ride-Through (LVRT) operation is proposed. In the case of LVRT, the active power injection by PV panels should be limited to prevent from
Blaabjerg, Frede   +3 more
core   +2 more sources

Comprehensive Overview of Low Voltage Ride Through Methods of Grid Integrated Wind Generator

open access: yesIEEE Access, 2019
The wind power generation is a rapidly growing grid integrated renewable energy (RE) technology with an installed capacity of 539.291 GW. The capability of the wind energy conversion system (WECS) to remain integrated into the utility network in the case
Om Prakash Mahela   +3 more
doaj   +1 more source

A Comprehensive Review of Control Strategies to Overcome Challenges During LVRT in PV Systems

open access: yesIEEE Access, 2021
Due to the high penetration of grid-connected photovoltaic (GCPV) systems, the network operators are regularly updating the grid codes to ensure that the operation of GCPV systems will assist in maintaining grid stability.
Jyoti Joshi   +3 more
doaj   +1 more source

LVRT Test data analysis of converter‐interfaced wind turbines

open access: yesThe Journal of Engineering, 2019
Doubly Fed Induction Generator (DFIG) and Permanent Magnet Synchronous Generator (PMSG) are converter‐interfaced wind turbines, which have much more complex short circuit behaviour after grid voltage drops. The research on short circuit current contributions provided by the wind turbines is very important for power system planning and relay protection ...
Can Chen   +4 more
openaire   +2 more sources

Advanced Control Strategy of DFIG Wind Turbines for Power System Fault Ride Through [PDF]

open access: yes, 2012
This paper presents an advanced control strategy for the rotor and grid side converters of the doubly fed induction generator (DFIG) based wind turbine (WT) to enhance the low-voltage ride-through (LVRT) capability according to the grid connection ...
Dong, Zhao Yang   +4 more
core   +2 more sources

ZSI for PV systems with LVRT capability

open access: yesIET Renewable Power Generation, 2018
This study proposes a power electronics interface (PEI) for photovoltaic (PV) applications with a wide range of ancillary services. As the penetration of distributed generation systems is booming, the PEI for renewable energy sources should be capable of providing ancillary services such as reactive power compensation and low ...
Sally Sajadian, Reza Ahmadi
openaire   +1 more source

Enhanced Low-Voltage Ride-Through Coordinated Control for PMSG Wind Turbines and Energy Storage Systems Considering Pitch and Inertia Response

open access: yesIEEE Access, 2020
Low-voltage ride-through (LVRT) requirements are defined by grid operators, and they vary based on power system characteristics. Coordinated LVRT control methods have been proposed for wind turbines (WTs) and energy storage systems (ESSs).
Chunghun Kim, Wonhee Kim
doaj   +1 more source

Simulation of a Low-Voltage Direct Current System Using T-SFCL to Enhance Low Voltage Ride through Capability

open access: yesEnergies, 2022
Owing to the increasing penetration level of distributed energy resources (DER) and direct current (DC) load, the usage of low-voltage direct current (LVDC) systems has expanded to achieve efficient operations.
Kwang-Hoon Yoon   +4 more
doaj   +1 more source

Low-Voltage Ride-Through Techniques in DFIG-Based Wind Turbines: A Review

open access: yesApplied Sciences, 2020
In recent years, considerable advances were made in wind power generation. The growing penetration of wind power makes it necessary for wind turbines to maintain continuous operation during voltage dips, which is stated as the low-voltage ride-through ...
Boyu Qin   +4 more
doaj   +1 more source

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