Results 251 to 260 of about 1,525,477 (300)

Fast Frequency Response From Utility-Scale Hydrogen Electrolyzers

IEEE Transactions on Sustainable Energy, 2021
This paper introduces the modelling foundations to study the fast frequency response (FFR) from utility-scale hydrogen electrolyzers (HEs). Specifically, we propose a dynamic model of the HE electrolysis stack, power-electronics interface, and downstream hydrogen process operational constraints, which is suitable for system-level frequency dynamics ...
Mehdi Ghazavi Dozein   +2 more
openaire   +1 more source

Fast Parametric Macromodeling of Frequency Responses Using Parameter Derivatives

IEEE Microwave and Wireless Components Letters, 2008
This letter presents a generalization of the multivariate Vector Fitting technique that includes parameter derivatives in the macromodeling process. The computational cost to simulate partial derivatives in terms of the parameters is often substantially lower than the simulation cost of additional data samples.
Ferranti, Francesco   +3 more
openaire   +2 more sources

Utilizing Data Centers for Inertia and Fast Frequency Response Services

2020 2nd International Conference on Smart Power & Internet Energy Systems (SPIES), 2020
This research evaluates data centers as an emergency source of virtual inertia and fast frequency response, using PMUs to detect disturbances. The performance of the proposed method is validated using DIgSILENT PowerFactory simulation, calibrated using a real frequency event that occurred in the Irish power system. Wind generation is significant in the
Al Kez, Dlzar   +3 more
openaire   +2 more sources

Cochlear and Fast Electrical Responses to Frequency Modulated Tones: A Frequency Specific Stimulus

Auris Nasus Larynx, 1979
Some characteristics of "the fast response" to frequency modulation were explored here by examining (1) CM and AP in animal experiment and (2) BER in human study. CM to frequency modulated tone showed frequency change and amplitude change, the latter of which is probably due to frequency characteristics of the sound conductive system of the ear ...
S, Funasaka, H, Abe
openaire   +2 more sources

Cloud-Edge Interoperability for Demand Response-Enabled Fast Frequency Response Service Provision

IEEE Transactions on Cloud Computing, 2022
The massive penetration of Renewables into the energy mix and the existence of IoT-enabled Distributed Energy Resources (DERs) in the emerging smart grid, while a blessing towards de-carbonization, increase considerably the operations and planning functions of the grid.
Athanasios Bachoumis   +7 more
openaire   +1 more source

A fast Green's function method for calculating bulk wave frequency responses from SAW frequency responses

IEEE Symposium on Ultrasonics, 2002
A method for the fast simulation of bulk wave second-order effects in SAW (surface acoustic wave) devices is described. It is shown that the bulk wave contribution to the total frequency response of a device can be computed from the real part of its surface wave frequency response.
K.C. Wagner, O. Manner
openaire   +1 more source

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