Results 101 to 110 of about 1,100 (215)

RoCoF restrictive planning framework and wind speed forecast informed operation strategy of energy storage system

open access: yes, 2020
A planning framework and operation strategy for energy storage are developed to limit the rate of change of frequency (RoCoF) within the industry requirements in power systems with high renewable energy penetration.
Raza, Qamar   +4 more
core   +1 more source

Analysis of Real-Time Frequency Event in Indian Power System: Quantifying Frequency Response Reserves and Effective-Droop Performance

open access: yesIEEE Access
In modern power systems, characterized by converter-interfaced generation and electronic interface loads, system inertia ( $M_{\text {sys}}$ ) is declining.
Khwrwmdao Basumatary   +3 more
doaj   +1 more source

MPC based frequency control of an autonomous microgrid integrated with electric vehicles

open access: yesResults in Engineering
Although electric vehicles (EVs) offer bidirectional charging and can serve as mobile energy storage units, integrating them into microgrids and enabling them to participate in load frequency control (LFC) has proven to be a significant challenge. One of
Abdullahi Bala Kunya   +3 more
doaj   +1 more source

Impact of Inverter-Based Resources on Inertia Provision and RoCoF Limitation

open access: yes
The ongoing replacement of traditional power plants with Photovoltaic (PV), Wind Turbine (WT) and Battery Energy Storage System (BESS) power plants will lead to problems of inertia shortage in future power systems.
Lisciandrello, Giuseppe   +5 more
core   +1 more source

A unified framework for co-optimization of PFR and FFR reserves using linearized tri-criteria frequency constraints

open access: yesInternational Journal of Electrical Power & Energy Systems
The increasing penetration of inverter-based resources reduces system inertia and heightens concerns about frequency stability. This paper proposes a systematic methodology for jointly optimizing primary frequency response (PFR) and fast frequency ...
Jongin Kim   +2 more
doaj   +1 more source

Assessing the performance of ROCOF relay for anti-islanding protection of distributed generation under subcritical region of power imbalance

open access: yes, 2018
In practice, the load-curve and distributed generation (DG) penetration level determines the power imbalance level that a network can experience if islanding occurs.
Kashem M. Muttaqi   +5 more
core   +1 more source

Nonparametric bootstrapping of the reliability function for multiple copies of a repairable item modeled by a birth process

open access: yes, 2005
Nonparametric bootstrap inference is developed for the reliability function estimated from censored, nonstationary failure time data for multiple copies of repairable items.
Quigley, J.L., Walls, L.A.
core   +1 more source

Virtual Inertia deployment for Oman’s grid system using a type 2 fuzzy-PID controller

open access: yesInternational Journal of Sustainable Energy
The increasing deployment of inverter based renewable energy sources in the Sultanate of Oman’s power system is reducing overall system inertia and leading to higher rate of change of frequency (ROCOF).
Ahmed Al-Farsi   +4 more
doaj   +1 more source

Impacts of Electric Vehicle Penetration on the Frequency Stability of Curaçao’s Power Network

open access: yesWorld Electric Vehicle Journal
Assessing the impact of electric vehicle (EV) integration on power systems is crucial, particularly regarding frequency stability, which often remains largely unaddressed, especially in developing countries.
Daniela Vásquez-Cardona   +4 more
doaj   +1 more source

Demonstration of Frequency Regulation via Autonomous Load Control

open access: yesIEEE Access
With the increasing proliferation of photovoltaic (PV) and wind power globally, frequency regulation by balancing generation and load in power systems is becoming increasingly difficult owing to reductions in dispatchable power and inertia.
Takeru Kitamura   +2 more
doaj   +1 more source

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