Results 71 to 80 of about 1,100 (215)

RoCoF-Constrained Scheduling Incorporating Non-Synchronous Residential Demand Responsee

, 2019
Demand response has the potential to provide a multitude of operating reserve categories. However, if integrated at scale, the non-synchronous nature of most demand response sources must be recognised within the operational rules of low inertia power ...
Daly, Pádraig, Qazi, Hassan Wajahat, Flynn, Damian   +2 more
core   +2 more sources

Novel Dynamic Inertia Damping Enhancement of Droop Control for Grid‐Forming Converters

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper introduces a novel dynamic inertia damping enhancement specifically designed to improve droop control for grid‐forming converters. Significant focus is placed on the development of a mathematical model that dynamically adjusts inertia based on frequency variations and active power.
Ayse Colak, Mohamed Abouyehia, Khaled Ahmed   +2 more
wiley   +1 more source

Inrush Current Suppression and Coordinated Control Strategy for Grid Black Start Using a Grid‐Forming Wind‐Storage System

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
To address the inrush current and switching impact from transformer no‐load closing during grid black start with grid‐forming wind turbines, this paper proposes a Virtual flux envelope smoothing (VFES) strategy and a multi‐mode coordinated black start control method for grid‐forming wind‐storage systems based on actual engineering parameters.
Jianhui Meng, Derui Cai, Xin Cao, Bixing Ren, Dajiang Wang   +4 more
wiley   +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

A Review of Energy Storage in Electric Power Systems and its Applications in Medium‐Voltage and Low‐Voltage Networks in South Africa

IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
Growing electricity demand and renewable energy intermittency challenge grid stability, necessitating energy storage systems (ESS) to balance supply and demand. This review explores ESS technologies and their applications in South Africa's MV/LV networks, proposing tailored designs and analytical tools to enhance renewable integration and grid ...
Franck C. Mushid, Mohamed F. Khan
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

Inertia Provision and Overload Protection of Grid-Forming Doubly Fed Induction Machines

IEEE Access
New technical requirements for grid-forming (GFM) capabilities include providing power system inertia to limit the rate of change of frequency (ROCOF).
Andre Thommessen, Christoph M. Hackl
doaj   +1 more source

Enhanced control strategies for managing frequency fluctuations during deloading of a photovoltaic system

Ain Shams Engineering Journal
Solar and wind power systems are receiving increased attention across multiple nations. Unlike traditional converters, this converter lacks inertia due to the absence of rotating mass, resulting in an overall decrease in grid inertia.
Ibrahim M. Ibrahim, Abdelmomen U. Mahgoub, Mohamed Rabah, Tarek A. Boghdady   +3 more
doaj   +1 more source

Inertia Estimation and Trend Analysis of the United States Power Grid Interconnections

IEEE Access
The transition from conventional to modern power systems is causing an increase in integration of inverter-based resources (IBRs). This generally leads to a decrease in total system inertia, which in-turn increases the system’s rate-of-change-of ...
Saurav Dulal, Chengwen Zhang, Mohammed Olama, Qian Liu, Narayan Bhusal, Ajay Pratap Yadav, Mark Baldwin, Nils Stenvig, Yilu Liu   +8 more
doaj   +1 more source

Comparative analysis between ROCOF and vector surge relays for distributed generation applications

, 2015
This paper presents a comprehensive comparative analysis between rate-of-change-of-frequency (ROCOF) and vector-surge (VS) relays for distributed generation islanding detection. The analysis is based, on the concepts of detection-time versus active power-
Xu, WS, Huang, ZY, Freitas, W, Affonso, CM   +3 more
core   +1 more source