Processes, 2023 One of the problems with the doubly-fed induction generator (DFIG) is its high vulnerability to network perturbations, notably voltage dips, because of its stator windings being coupled directly to the network.
Azeddine Loulijat +8 more
semanticscholar +1 more source
Low-Voltage Ride-Through Techniques in DFIG-Based Wind Turbines: A Review
Applied 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
Dynamic Modeling and Stability Analysis for Repeated LVRT Process of Wind Turbine Based on Switched System Theory [PDF]
IEEE Transactions on Power SystemsThe significant electrical distance between wind power collection points and the main grid poses challenges for weak grid-connected wind power systems.
Qiping Lai, Chen Shen, Dongsheng Li
semanticscholar +1 more source
Research on HIL-based HVRT and LVRT automated test system for photovoltaic inverters
Energy Reports, 2021 As an important capability of the photovoltaic grid-connected inverter, high voltage ride-through (HVRT) and low voltage ride-through (LVRT) capability are related to the stability of the whole power grid system.
Fei Li +3 more
doaj +1 more source
3-Phase 4-wire matrix converter-based voltage sag/ swell generator to test low-voltage ride through in wind energy conversion systems [PDF]
, 2014 The high penetration of energy from wind energy conversion systems (WECSs) can have a significant influence on the stability, power quality and reliability of power systems.
Cardenas R. +7 more
core +2 more sources
A Shadow Price Approach to Technical Efficiency Measurement. [PDF]
The axiomatic literature on technical efficiency measurement has drawn attention to the indication problem of the Debreu-Farrell (DF) measure. We follow a shadow price approach to preserve the DF benchmark while reconciling it with the Koopmans ...
Laurens CHERCHYE, Tom VAN PUYENBROECK
core +6 more sources
Simulation Study on Low Voltage Ride-through Capability of Wind Farms With Different Units
发电技术, 2020 The simulation platform of wind farms with fixed speed induction wind turbines and doubly-fed induction wind turbines connected to the power grid was built in the electromagnetic transient simulation software PSCAD/EMTDC.
Yue ZHU, Junmin SHA, Jing ZHAO
doaj +1 more source
Zhongguo dianli, 2022 In terms of the problem that the grid-connected photovoltaic DC system is unstable during low voltage ride through (LVRT), an improved double-side voltage control strategy is proposed.
Fei XUE +3 more
doaj +1 more source
Performance Improvement of Single-Phase Transformerless Grid-Connected PV Inverters Regarding Common-Mode Voltage (CMV) and LVRT [PDF]
Journal of Operation and Automation in Power Engineering, 2019 The single-phase transformerless grid-connected photovoltaic (PV) systems, mainly the low-power single-phase systems, require high efficiency, small size, lightweight, and low-cost grid-connected inverters.
M. Farhadi-Kangarlu, F. Mohammadi
doaj +1 more source
Review of low voltage ride-through technology of doubly-fed induction generator
The Journal of Engineering, 2019 In recent years, with the increasing of wind power development, the demand for low voltage ride-through (LVRT) technology was proposed to ensure the safe and reliable operation of the power system.
Lele Niu +4 more
doaj +1 more source