Two-Phase Short-Term Frequency Response Scheme of a DFIG-Based Wind Farm
Frontiers in Energy Research, 2021 The kinetic energy stored in the doubly-fed induction generators (DFIG)-based wind farm can be utilized to sustain the dynamic system frequency. However, difficulties arise in determining the control gain to effectively improve the frequency nadir and ...
Dejian Yang +3 more
doaj +1 more source
System frequency response model and droop coefficient setting considering renewable energy participation in frequency regulation [PDF]
Frontiers in Energy ResearchThe highly uncertain and uncontrollable power output of renewable energy sources (RES), when integrated into power systems at high penetration levels, reduces system inertia and introduces uncertain changes in system structure, parameters, and frequency ...
Yuyan Song +5 more
doaj +3 more sources
Online estimation of disturbance size and frequency nadir prediction in renewable energy integrated power systems [PDF]
, 2023 The displacement of conventional synchronous generation by Inverter-Based Resources (IBRs) poses critical challenges to the frequency stability of Renewable Energy (RE) integrated power systems.
Rather, Zakir +2 more
core +1 more source
Nadir Frequency Estimation in Low-Inertia Power Systems [PDF]
, 2021 Increasing amounts of non-synchronous generation in power grids are bringing reductions in system inertia. In a grid with extremely low inertia, the estimation of frequency indicators such as the frequency nadir can be used to feed into predictive system
Chamorro, Harold R. +6 more
core +2 more sources
Inclusion of Frequency Nadir constraint in the Unit Commitment Problem of Small Power Systems Using Machine Learning [PDF]
, 2023 As the intention is to reduce the amount of thermal generation and to increase the share of clean energy, power systems are increasingly becoming susceptible to frequency instability after outages due to reduced levels of inertia.
Lobato, Enrique +10 more
core +2 more sources
Power Reserve from Photovoltaics for Improving Frequency Response in the Isolated System
Energies, 2023 Appropriate frequency response is an issue of great importance in power system management, especially in an islanded one. An energy-based method for assessing a system’s response, which is needed to prevent under frequency load shedding (UFLS), is ...
Olga Poliak, Doron Shmilovitz
doaj +1 more source
Optimizing system operation with nadir considerations via simulations of detailed system dynamic responses [PDF]
, 2022 Decarbonization processes around the world are pressing system operation significantly, particularly in terms of ensuring appropriate reliability and stability levels when integrating massive amounts of converter-based generation technologies (CGTs).
Jacqueline Llanos +11 more
core +1 more source
Predictive Control-Based NADIR-Minimizing Algorithm for Solid-State Transformer [PDF]
, 2021 Solid-state transformers (SSTs) are becoming an important solution to control active distribution systems. Their significant flexibility in comparison with traditional magnetic transformers is essential to ensure power quality and protection coordination
Hector Chavez +2 more
core +1 more source
Novel insight on temporary frequency support of variable speed wind energy conversion system
Wind Energy, 2021 In the recent decade, temporary frequency support derived from variable speed wind turbine generator has been drawing increasing attention in the electronic‐growing power system.
Huanjing Lao +3 more
doaj +1 more source
Primary Frequency Stability Support of a DFIG in Association With Pitch Angle Control
Frontiers in Energy Research, 2022 For an electric power grid that has large penetration levels of variable renewable energy including wind generation and photovoltaics, the system frequency stability is jeopardized, which is manifest in lowering frequency nadir and settling frequency ...
Xiuli Si +5 more
doaj +1 more source