Acupuncture as an early treatment for idiopathic sudden sensorineural hearing loss (ISSNHL) patients with flat or high-frequency drop audiograms: study protocol for a randomized controlled trial [PDF]
Trials, 2018 Background Idiopathic sudden sensorineural hearing loss (ISSNHL) is a common form of deafness. Acupuncture has been used as a salvage therapy for ISSNHL in China since 200 BCE.
Kai Shang +8 more
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Decentralized secondary control for frequency regulation based on fuzzy logic control in islanded microgrid [PDF]
, 2023 This paper presents a fuzzy-based decentralized secondary control for frequency restoration and active power-sharing in an islanded microgrid, this controller uses the local frequency error to generate an extra term for compensating the deviation and ...
Josep M. Guerrero4 +4 more
core +4 more sources
Cooperative Synthetic Inertia Control for Wind Farms Considering Frequency Regulation Capability
Frontiers in Energy Research, 2021 To fully utilize the frequency regulation (FR) capability of wind turbines (WTs) and to avoid a secondary frequency drop caused by the rotor speed recovery, this paper firstly proposes an FR capability evaluation method for wind farms based on the ...
Qiaoming Shi +6 more
doaj +1 more source
Frontiers in Energy Research, 2022 Large-scale wind power connected to the grid efficiently reduces fossil fuel consumption, but extremely decreases grid inertial and increases frequency regulation pressure on the grid.
Chao Liu +4 more
doaj +1 more source
Adaptive droop control strategy for wind turbines based on ROCOF and rotor kinetic energy
电力工程技术, 2023 The frequency stability of the wind power grid-connected system may be improved by the participation of wind turbines in frequency regulation. However, it is difficult for the existing droop control to coordinate the frequency response characteristics ...
LIU Hui, LUO Wei, SU Yi, ZHAO Teyang
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Study on the Variable Frequency Transformer's Operation and Frequency Range [PDF]
, 2022 Inherently variable power generation from renewable energy sources (RES), such as wind turbines and solar panels, is challenging for energy shifting. Merging separated power grids into a super grid with various RES besides the different peak times and ...
Nasrollahi, Kooshiar
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Drop oscillation and mass transfer in alternating electric fields [PDF]
, 1992 In certain cases droplet direct contact heat transfer rates can be significantly enhanced by the application of an alternating electric field. This field can produce shape oscillations in a droplet which will enhance mixing. The theoretical evaluation of
Carleson, T.E.
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IJRETINA (International Journal of Retina), 2019 Background: The incidence of nucleus drop or intraocular lens (IOL) drop as the complication of phacoemulsification increases due to the increased frequency of phacoemulsification.
Noviana Kurniasari Vivin +6 more
doaj +1 more source
Drop oscillation and mass transfer in alternating electric fields. Progress report, May 30, 1991--June 1, 1992 [PDF]
, 1992 In certain cases droplet direct contact heat transfer rates can be significantly enhanced by the application of an alternating electric field. This field can produce shape oscillations in a droplet which will enhance mixing. The theoretical evaluation of
Carleson, T. E.
core +1 more source
Stability Enhancement and Direct Speed Control of DFIG Inertia Emulation Control Strategy
IEEE Access, 2019 With the increasing penetration of renewable energy generators in power grid, traditional vector control (VC) strategy for double fed induction generator (DFIG) is unable to provide extra active power support to grid because DFIG inertia is made ...
Haoshu Shao +7 more
doaj +1 more source