Results 21 to 30 of about 1,525,477 (300)
Fast temporal adaptation of on-off units in the first optic chiasm of the blowfly [PDF]
, 1991 We recorded from spiking units in the first optic chiasm between lamina and medulla in the brain of the blowfly (Calliphora vicina). Both previously characterized neuron types, on-off units and sustaining units, were encountered.
Hateren, J.H. van,, Jansonius, N.M.,
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Transient Frequency Estimation Methods for the Fast Frequency Response in Converter Control
Electronics, 2023 In an interconnected power system, frequency control and stability are of vital importance and indicators of system-wide active power balance. The shutdown of conventional power plants leads to faster frequency changes and a steeper frequency gradient due to reduced system inertia.
Anna Pfendler +2 more
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Manipulation of Static and Dynamic Data Center Power Responses to Support Grid Operations
IEEE Access, 2020 This research investigates three frameworks for data centers to deliver fast frequency response services from their UPS storage systems, HVAC cooling units, and the ability of off-gridding the entire data center during transient frequency events. The aim
Dlzar Al Kez +3 more
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Frequency Control in Power Systems with Large Share of Wind Energy
Energies, 2022 Fast frequency response from wind turbines and plants has been playing an increasingly important role in our modern power system, which has a large share of wind energy integration.
Liang Lu +2 more
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IEEE Access, 2022 Bulk integration of Distributed Energy Resources (DERs) into the power grids reduces the system’s inherent inertial response.The reduced inertial response causes a high Rate-of-Change-of-Frequency (RoCoF) and poses formidable operational ...
Sumit Nema +2 more
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Simulation Evaluation of Fast Frequency Response Capacity of New Energy Power Stations [PDF]
E3S Web of Conferences, 2021 The number of new energy power stations in China is boosting in recent years, a large number of conventional power supplies have been replaced, resulting in severe problems in controlling the frequency of power grids and easily leading to frequency ...
Wanzheng Chang +6 more
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Fast frequency response computation for Rayleigh damping [PDF]
International Journal for Numerical Methods in Engineering, 2007 AbstractWe present a model reduction Lanczos method for the computation of frequency response functions of Rayleigh damping problems. The connection with modal extraction and modal superposition is made. The usual model reduction methods require complex arithmetic. With the proposed method, complex arithmetic is only used for the reduced problem.
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All-optical differential current detection technique for unit protection applications [PDF]
, 2013 In this paper we demonstrate a novel, all-optical differential current protection scheme. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and using a simple optoelectronic threshold detector, an ...
Fusiek, Grzegorz +3 more
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IEEE Access, 2021 The massive penetration of renewable energy sources in electrical systems has been displacing synchronous generators (SGs) from conventional power plants in the last few years.
Jose Luis Rodriguez Amenedo +3 more
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Feasibility studies of a converter-free grid-connected offshore hydrostatic wind turbine [PDF]
, 2020 Owing to the increasing penetration of renewable power generation, the modern power system faces great challenges in frequency regulations and reduced system inertia.
Lin, Shuyue, Tong, Xin, Zhao, Xiaowei
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