Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization

With the increasing penetration of renewable energy generation, the frequency stability of a power grid can be significantly threatened. A doubly-fed induction generator (DFIG) participates in the frequency support of a power grid by releasing kinetic energy (KE) to boost the frequency nadir (FN). H...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yien Xu, Hongmei Wang
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	frequency stability torque limit-based inertial control frequency nadir second frequency drop rotor speed recovery General Works A
Acceso en línea:	https://doaj.org/article/52afa6bae97e4a3e9cdbd6bf084d39f2
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:52afa6bae97e4a3e9cdbd6bf084d39f2
record_format	dspace
spelling	oai:doaj.org-article:52afa6bae97e4a3e9cdbd6bf084d39f22021-11-22T07:26:15ZTorque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization2296-598X10.3389/fenrg.2021.788989https://doaj.org/article/52afa6bae97e4a3e9cdbd6bf084d39f22021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenrg.2021.788989/fullhttps://doaj.org/toc/2296-598XWith the increasing penetration of renewable energy generation, the frequency stability of a power grid can be significantly threatened. A doubly-fed induction generator (DFIG) participates in the frequency support of a power grid by releasing kinetic energy (KE) to boost the frequency nadir (FN). However, during rotor speed restoration, it is difficult to counterbalance the size of a second frequency drop (SFD) and the rotor speed recovery duration. This paper proposes an improved torque limit-based inertial control (TLBIC) to raise the FN by releasing less kinetic energy while guaranteeing rapid frequency stabilization with reduced SFD. To this end, when detecting a disturbance, the DFIG enhances the active reference power to the torque limit, and then the active power reduces smoothly based on an exponential function until the maximum power point tracking (MPPT) curve is met, and the rotor speed reverts to the initialization operating condition along the MPPT curve. A simulation system model with various wind power penetrations is established in EMTP-RV. Results show that the proposed scheme boosts the FN at a high level with less KE and guarantees rapid frequency stabilization.Yien XuHongmei WangFrontiers Media S.A.articlefrequency stabilitytorque limit-based inertial controlfrequency nadirsecond frequency droprotor speed recoveryGeneral WorksAENFrontiers in Energy Research, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	frequency stability torque limit-based inertial control frequency nadir second frequency drop rotor speed recovery General Works A
spellingShingle	frequency stability torque limit-based inertial control frequency nadir second frequency drop rotor speed recovery General Works A Yien Xu Hongmei Wang Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization
description	With the increasing penetration of renewable energy generation, the frequency stability of a power grid can be significantly threatened. A doubly-fed induction generator (DFIG) participates in the frequency support of a power grid by releasing kinetic energy (KE) to boost the frequency nadir (FN). However, during rotor speed restoration, it is difficult to counterbalance the size of a second frequency drop (SFD) and the rotor speed recovery duration. This paper proposes an improved torque limit-based inertial control (TLBIC) to raise the FN by releasing less kinetic energy while guaranteeing rapid frequency stabilization with reduced SFD. To this end, when detecting a disturbance, the DFIG enhances the active reference power to the torque limit, and then the active power reduces smoothly based on an exponential function until the maximum power point tracking (MPPT) curve is met, and the rotor speed reverts to the initialization operating condition along the MPPT curve. A simulation system model with various wind power penetrations is established in EMTP-RV. Results show that the proposed scheme boosts the FN at a high level with less KE and guarantees rapid frequency stabilization.
format	article
author	Yien Xu Hongmei Wang
author_facet	Yien Xu Hongmei Wang
author_sort	Yien Xu
title	Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization
title_short	Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization
title_full	Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization
title_fullStr	Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization
title_full_unstemmed	Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization
title_sort	torque limit-based inertial control of a dfig for rapid frequency stabilization
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/52afa6bae97e4a3e9cdbd6bf084d39f2
work_keys_str_mv	AT yienxu torquelimitbasedinertialcontrolofadfigforrapidfrequencystabilization AT hongmeiwang torquelimitbasedinertialcontrolofadfigforrapidfrequencystabilization
_version_	1718417855177818112

Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization

Ejemplares similares