Results 31 to 40 of about 69,873 (301)
Energies, 2017 This paper proposes a short-term frequency-response scheme of a doubly-fed induction generator (DFIG)-based wind turbine generator (WTG) for improving rotor speed recovery and frequency nadir.
Dejian Yang +6 more
doaj +1 more source
Angular dependence of 12-kHz seafloor acoustic backscatter [PDF]
, 1991 The angular dependence of seafloor acoustic backscatter,measured with a 12‐kHz multi narrow‐beam echo‐sounder at two sites in the central North Pacific with water depths of 1500 and 3100 m, respectively, has been determined for incidence angles between 0°
Alexandrou, Dimitri +1 more
core +2 more sources
Frontiers in Energy Research, 2022 Fast-frequency regulation (FFR) is becoming a key measure to enhance the frequency stability of power systems as the penetration of renewables and power electronics continues to grow and the system inertia declines.
Yuan Tang +4 more
doaj +1 more source
Aluminium Feeds for Reflector for NadirSAR [PDF]
, 2018 With the long term aim of developing a NadirSAR quadrotor UAV system specialized for monitoring broad acre grain fields, a large aperture load bearing antenna to use as the main structural element was sort.
Gray, Derek, Le Kernec, Julien
core +1 more source
Torque Limit-Based Inertial Control of a DFIG for Rapid Frequency Stabilization
Frontiers in Energy Research, 2021 With the increasing penetration of renewable energy generation, the frequency stability of a power grid can be significantly threatened. A doubly-fed induction generator (DFIG) participates in the frequency support of a power grid by releasing kinetic ...
Yien Xu, Hongmei Wang
doaj +1 more source
Novel electrocardiographic criteria for the diagnosis of arrhythmogenic right ventricular cardiomyopathy [PDF]
, 2015 Aims: In order to improve the electrocardiographic (ECG) diagnosis of arrhythmogenic right ventricular cardiomyopathy (ARVC), we evaluated novel quantitative parameters of the QRS complex and the value of bipolar chest leads (CF leads) computed from the ...
Bastiaenen, Rachel +6 more
core +1 more source
, 2017 Wind generation is expected to reach substantially higher levels of penetration in the near future. With the converter interface, the rotor inertia of doubly-fed induction generator (DFIG) based wind turbine generator is effectively decoupled from the ...
Tomsovic, Kevin, Wang, Siqi
core +1 more source
The complex relationship between weather and dengue virus transmission in Thailand. [PDF]
, 2013 Using a novel analytical approach, weather dynamics and seasonal dengue virus transmission cycles were profiled for each Thailand province, 1983-2001, using monthly assessments of cases, temperature, humidity, and rainfall.
Campbell, Karen M +3 more
core +1 more source
Energy Reports, 2023 For power systems to manage a variety of renewable energy sources while securing system stability and reliability, more resources are required. However, due to the interaction of the frequency response resources, determining the appropriate resources for
Jaeyeop Jung +3 more
doaj +1 more source
STE-QUEST Mission and System Design - Overview after completion of Phase-A
, 2014 STE-QUEST is a fundamental science mission which is considered for launch within the Cosmic Vision programme of the European Space Agency (ESA). Its main scientific objectives relate to probing various aspects of Einstein's theory of general relativity ...
Beck, Jan +3 more
core +1 more source