Results 51 to 60 of about 774 (188)

Reinforcement Learning‐Based Fast Frequency Response Using Energy Storage for Remote Microgrids

IET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.
ABSTRACT The power system is undergoing a significant shift from fossil fuel‐based electricity generation to inverter‐based renewable energy resources (IBRs), accelerating the transition towards cleaner energy. This transition, however, introduces new challenges for system stability and control.
Pooja Aslami, Tara Aryal, Niranjan Bhujel, Hossein Moradi Rekabdarkolaee, Zongjie Wang, Timothy M. Hansen   +5 more
wiley   +1 more source

Loss-of-Mains Detection by Internet Based ROCOF

, 2008
This paper considers the enhancement of loss-of-mains detection by use of a differential rate-of-change-of-frequency relay to reduce nuisance tripping and improve sensitivity to small excursions in frequency.
Littler, Timothy; id_orcid, D.M. Laverty, D.J. Morrow, Crossley, P.A., Laverty, D.M., Morrow, John; id_orcid, Morrow, D.J., T. Littler, P.A. Crossley, Littler, T., Crossley, Peter   +10 more
core   +1 more source

Innovative primary frequency control in low-inertia power systems based on wide-area RoCoF sharing [PDF]

, 2020
Future plans for integration of large nonsynchronous generation and the expansion of the power system in the Nordic countries are a concern to transmission system operators (TSOs) due to the common interconnections and electricity exchanges among these ...
Gonzalez-Longatt, F., Chamorro Vera, Harold Rene,, Rouzbehi, K., Sood, Vijay Kumar, Segundo Sevilla, Felix Rafael, Sood, Vijay, Rouzbehi, Kumars, Chamorro, Harold R., Chamorro, Harold, Chavez, H., Sood, V. K., Gonzalez, Francisco, Chavez, Hector, Gonzalez-Longatt, Francisco, Sevilla, F. R. S., Sood, Vijay K.   +15 more
core   +1 more source

Revolutionising Battery Energy Storage Systems Energy Management: Dynamic‐Aware Solutions With Integrated Quantum Particle Swarm Optimisation and Deep Reinforcement Learning

IET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.
ABSTRACT The increasing integration of inverter‐based resources (IBRs) into microgrids (MGs) poses considerable challenges for dynamic stability and energy management, primarily due to their variable and uncertain inertia and damping characteristics.
Yousef Asadi, Mohsen Eskandari, Milad Mansouri   +2 more
wiley   +1 more source

Effect of Unbalance on Positive-Sequence Synchrophasor, Frequency and ROCOF Estimations [PDF]

, 2018
Phasor measurement units (PMUs) are the measurement devices fostering the transformation of electric power networks towards the smart grid paradigm. They should accurately measure synchrophasors, frequency, and rate of change of frequency (ROCOF), so ...
Toscani, Sergio, Paolo Attilio Pegoraro, Pegoraro, Paolo Attilio, Ferrero, Roberto, Roberto Ferrero, Sergio Toscani, Castello, Paolo, Ferrero, R, Paolo Castello   +8 more
core   +1 more source

Frequency‐trajectory‐oriented control strategy for primary frequency regulation of wind farms

IET Generation, Transmission & Distribution, 2023
With the rapid increase of wind power penetration, the frequency indicators of power system, encompassing frequency deviation and rate of change of frequency (RoCoF), are prone to exceed the pertinent relay thresholds, thus leading to serious power ...
Xusong Yang, Lei Liu, Xinyu Gu, Xianjue Luo   +3 more
doaj   +1 more source

Time‐Varying Inertia Estimation for Grid‐Connected DFIG‐Based Wind Farms Using Sensitivity‐Guided Clustering and Aggregation

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes a time‐varying inertia estimation framework based on sensitivity‐guided clustering and aggregation. It can achieve high‐accuracy inertia estimation with limited measurements, reducing the relative error by nearly 10% compared with existing methods, and exhibit strong robustness to noise and disturbances.
Yulong Li, Wei Yao, Yongxin Xiong, Hongyu Zhou, Shanyang Wei, Wei Huang, Jinyu Wen   +6 more
wiley   +1 more source

Dealing with front-end white noise on differentiated measurements such as frequency and ROCOF in power systems [PDF]

, 2018
This paper describes the way that white noise (including quantised input section sampling) imparts errors onto frequency and rate-of-change-of-frequency (ROCOF) measurements. The main paper focus concerns the use of filtered heterodyned (i.e.
Rietveld, Gert, Blair, Steven M., Dickerson, William, Roscoe, Andrew J.   +3 more
core   +1 more source

Multi‐Dimensional Stability Constrained Bi‐Level Topology Optimisation Method for HVDC Systems Embedded in Dense AC Grids

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
1) The typical operational risks and coupling characteristics of the AC/DC hybrid power grid are analyzed in detail. 2) A bi‐Level topology optimization method is designed for HVDC systems embedded in dense AC grids. 3) Considering engineering standards of both security and economy, multi‐dimensional security and stability constraints are incorporated ...
Mingxin Yan, Ying Huang, Guoteng Wang, Hui Cai, Zheng Xu, Xingning Han   +5 more
wiley   +1 more source

Updated Frequency Response Model in Modern Power Grids: An Analytical Approach and Parameters Estimation

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
ABSTRACT Emerging converter‐based resources (CBRs) results in changing dynamics of the power grids. Hence, the conventional frequency response model (FRM) cannot properly cover the frequency dynamics of the modern power grids. An effective approach is required to achieve an updated FRM which has been missing in the previous studies.
Sirwan Shazdeh, Sharara Rehimi, Hassan Bevrani   +2 more
wiley   +1 more source