Results 31 to 40 of about 1,521,192 (154)

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

International 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, Jae Woong Shim, Hunyoung Shin   +2 more
doaj   +1 more source

A Novel Control Architecture for Hybrid Power Plants to Provide Coordinated Frequency Reserves

Energies, 2019
The inertia reduction suffered by worldwide power grids, along with the upcoming necessity of providing frequency regulation with renewable sources, motivates the present work.
Daniel Vázquez Pombo, Florin Iov, Daniel-Ioan Stroe   +2 more
doaj   +1 more source

Simultaneous and accurate measurement of the dielectric constant at many frequencies spanning a wide range [PDF]

, 2015
We present an innovative technique which allows the simultaneous measurement of the dielectric constant of a material at many frequencies, spanning a four orders of magnitude range chosen between 10 --2 Hz and 10 4 Hz.
Antoine Naert, Caroline Crauste-Thibierge, Denis Cottinet, Ludovic Bellon, Marius Tanase, Mark J. E., Pascal Metz, Roberto Pérez-Aparicio, Sergio Ciliberto   +8 more
core   +5 more sources

Novel Coordinated Control Strategy of BESS and PMSG-WTG for Fast Frequency Response

Applied Sciences, 2021
An increase in inverter-based resources (IBRs) can lower the inertia of a power system, which may adversely affect the power system by causing changes such as a frequency nadir reduction or an increased initial rate of change of frequency (RoCoF).
Hyunwook Kim, Junghun Lee, Jaehyeong Lee, Gilsoo Jang   +3 more
doaj   +1 more source

Fast tuneable InGaAsP DBR laser using quantum-confined stark-effect-induced refractive index change [PDF]

, 2007
We report a monolithically integrated InGaAsP DBR ridge waveguide laser that uses the quantum-confined Stark effect (QCSE) to achieve fast tuning response.
Cannard, P, Gwilliam, R, Pantouvaki, M, Renaud, CC, Robertson, MJ, Seeds, AJ   +5 more
core   +1 more source

Fast-response frequency-to-analog converter [PDF]

, 1967
Frequency-to-analog converter has a fast response time and a low ripple. The circuit uses a frequency-to-pulse converter which provides two pulse trains, both at the same frequency as that of the input signal, but with a 10 microsecond difference between
Hagihara, F. S.
core   +1 more source

Stochastic scheduling with inertia-dependent fast frequency response requirements [PDF]

, 2015
High penetration of wind generation will increase the requirement for fast frequency response services as currently wind plants do not provide inertial response.
Strbac, G, Teng, F, Trovato, V
core   +1 more source

Frequency Support for the Decarbonization of an Isolated Low-Inertia System With the Integration of RES and BESS

IEEE Access
This paper proposes a technical methodology to decarbonize an isolated low-inertia system with the integration of a Renewable Energy Source (RES) and a Battery Energy Storage System (BESS).
Andre G. P. Alves, Joao M. T. do Amaral, Giulia J. da Silva, Carolina C. M. de Souza, Pedro H. B. Cambruzzi, Gabriel Gentil, Emanuel L. van Emmerik, Annelys M. Schetinger, Hugo Bozelli, Robson F. S. Dias   +9 more
doaj   +1 more source

Fast frequency response provision from commercial demand response, from scheduling to stability in power systems

IET Renewable Power Generation, 2022
Reduced numbers of online conventional generators, due to increasing shares of renewable energy sources, are increasing the requirement for a fast frequency response capability from reserve providers when a large infeed/outfeed trips.
M. Saeed Misaghian, Ciara O'Dwyer, Damian Flynn   +2 more
doaj   +1 more source

Examination of fast frequency response capacity requirements considering frequency ride-through capabilities in distributed generators with legacy inverters

Energy Reports, 2023
Given the rapid increase in inverter-based distributed generators (IBDGs), their response and subsequent impacts on power system stability during abnormal power system conditions are becoming important. Recent events have shown that an unexpected loss of
Sungwoo Kang, Heewon Shin, Byongjun Lee, Dongyeong Lee, Gilsoo Jang   +4 more
doaj   +1 more source