Results 11 to 20 of about 7,162 (246)

Design of A Single-Phase Transformerless Grid-Connected PV Inverter ‎Considering Reduced Leakage Current and LVRT Grid Codes [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2021
A new single-phase transformerless grid-connected PV inverter is presented in this paper. Investigations in transformerless grid-connected PV inverters indicate the existence of the leakage current is directly related to the variable common-mode voltage (
F. Mohammadi   +3 more
doaj   +1 more source

LVRT enhancement of DFIG-driven wind system using feed-forward neuro-sliding mode control

open access: yesOpen Engineering, 2021
Power generation losses arise in doubly fed induction generator (DFIG) system due to grid faults. The system’s protection should ensure that the wind turbine (WT) generator meets the grid requirements through a low voltage ride through (LVRT) technique ...
Hiremath Ravikiran, Moger Tukaram
doaj   +1 more source

Existence analysis of power flow solution considering LVRT of a full-power converter

open access: yesZhejiang dianli, 2023
Power flow solution of the system with a full-power converter may get lost during low-voltage ride-through (LVRT). Therefore, the change law of grid equivalent parameters and power flow characteristics during the fault is analyzed, and the law of ...
LAN Zhou   +3 more
doaj   +1 more source

Research on LVRT Control Strategy of Photovoltaic System Based on Hybrid Control Algorithm

open access: yesZhongguo dianli, 2020
A low voltage ride-through (LVRT) control strategy of photovoltaic (PV) system based on a hybrid control algorithm is proposed to solve the problems of DC-link overvoltage and AC side overcurrent of grid-connected inverter when the power grid voltage ...
Chunbo YANG   +4 more
doaj   +1 more source

Advanced Dispatching of a Wind Farm Based on Doubly Fed Induction Generators for the Improvement of LVRT Capability by the ADRC Approach

open access: yesAdvances in Electrical and Electronic Engineering, 2022
This paper aims to explore a viable monitoring and management of active and reactive powers for a large-scale wind farm based on Doubly-Fed Induction Generators (DFIG) considering the voltage Fault-Ride-Through capability (FRT), especially Low-Voltage ...
Hammadi Laghridat   +2 more
doaj   +1 more source

Low-Voltage Ride-Through Coordinated Control for PMSG Wind Turbines Using De-Loaded Operation

open access: yesIEEE Access, 2021
Low-voltage ride-through (LVRT) is important for the grid integration of wind power systems (WPSs). Each grid operator defines a grid code, including the LVRT requirement, considering their power system characteristics. During grid faults, LVRT is needed
Chunghun Kim, Wonhee Kim
doaj   +1 more source

Low-voltage ride through of multi-port power electronic transformer

open access: yesiEnergy, 2022
A low-voltage ride-through (LVRT) control strategy for the multi-port power electronic transformer (PET) based on power co-regulation is proposed.
Wusong Wen   +3 more
doaj   +1 more source

Coordinated LVRT Control for a Permanent Magnet Synchronous Generator Wind Turbine with Energy Storage System

open access: yesApplied Sciences, 2020
This study introduces a coordinated low-voltage ride through (LVRT) control method for permanent magnet synchronous generator (PMSG) wind turbines (WT) interconnected with an energy storage system (ESS).
Chunghun Kim   +3 more
doaj   +1 more source

Low voltage ride-through control strategy for a wind turbine with permanent magnet synchronous generator based on operating simultaneously of rotor energy storage and a discharging resistance

open access: yesEnergy Reports, 2022
When the low voltage ride-through(LVRT) method of combining rotor energy storage with a discharging resistance for a wind turbine with permanent magnet synchronous generator(PMSG) is adopted, with the traditional control strategy, there are the ...
Jian Wang   +3 more
doaj   +1 more source

The transient instability mechanism and stability‐enhanced LVRT control for VSC riding‐through severe grid voltage sag

open access: yesIET Renewable Power Generation, 2023
As the grid‐connected interface device of wind and photovoltaic power generation, the voltage source converter (VSC) must pass the low voltage ride‐through (LVRT) test. However, existing literature demonstrates that under weak grid conditions, there is a
Huiqiang Sun   +6 more
doaj   +1 more source

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