Results 31 to 40 of about 26,369 (176)
Frequency Separation-based Power Management Strategy for a Fuel Cell-Powered Drone [PDF]
, 2020 This paper deals with fuel cell-powered drones power management while targeting fuel cell lifetime extension. In this context, a hybrid system topology, based on a fuel cell, a supercapacitor, and a DC/DC boost converter, is adopted so as to achieve ...
Mohamed Benbouzid +3 more
core +1 more source
Experimental Demonstration of Nadir Echo Removal in SAR Using Waveform Diversity and Dual-Focus Postprocessing [PDF]
, 2021 Synthetic aperture radar (SAR) provides high-resolution images for remote sensing applications regardless of sunlight and weather conditions. The pulsed operation of SAR may lead to an occurrence of nadir echoes in SAR images that significantly affect ...
Steinbrecher, Ulrich +4 more
core +1 more source
IEEE Access, 2022 Power systems with a high share of renewables require additional ancillary services to operate safely and reliably. System operators are introducing schemes to attract investment in technology which will provide ancillary services.
Neil McIlwaine +5 more
doaj +1 more source
Effective Inertial Response With New Coordinated Control for Multiple WPPs
IEEE Access, 2022 This paper proposes a new coordinated control for multiple wind power plants (WPPs) based on two stepwise inertial control (SIC) methods to effectively release the kinetic energy of the permanent magnet synchronous generators (PMSGs) and improve their ...
Sunghoon Lim +2 more
doaj +1 more source
Flexible Kinetic Energy Release Controllers for a Wind Farm in an Islanding System
Energies, 2020 To improve frequency nadir following a disturbance and avoid under-frequency load shedding, two types of flexible kinetic energy release controllers for the doubly fed induction generator (DFIG) are proposed.
Yi-Wei Chen, Yuan-Yih Hsu
doaj +1 more source
Wind Speed Retrieval Algorithm Using Ku-Band Radar Onboard GPM Satellite
Remote Sensing, 2021 The algorithm to retrieve wind speed in a wide swath from the normalized radar cross section (NRCS) was developed for the data of Dual Frequency Precipitation Radar (DPR) operating in scanning mode installed onboard a Global Precipitation Measurement ...
Maria Panfilova, Vladimir Karaev
doaj +1 more source
Dynamic synthetic inertial control method of wind turbines considering fatigue load
Frontiers in Energy Research, 2023 This paper proposes a dynamic synthetic inertia control method, considering the fatigue loads of the wind turbine. The control objectives include reducing the rate of change of frequency and frequency nadir of the power system and the fatigue load of the
Hanbo Wang +4 more
doaj +1 more source
Energies, 2018 Maintaining the stability of a conventional power system during under frequency events is partially dominated by a natural behavior called inertial response.
Abdulhameed S. Alsharafi +2 more
doaj +1 more source
An Improved Droop Control Scheme of a Doubly-Fed Induction Generator for Various Disturbances
Energies, 2021 Doubly-fed induction generators (DFIGs) participate in the system frequency regulation using a fixed-coefficient droop control scheme. Nevertheless, the frequency-supporting capability of this control scheme with fixed gain is limited for different ...
Yien Xu +3 more
doaj +1 more source
Comparative Evaluation of Virtual Inertia and Fast Frequency Reserve Provided by HVDC Terminals [PDF]
, 2022 This paper compares the impact on power system frequency transients from virtual inertia and Fast Frequency Reserve (FFR) provided by HVDC converters. Specifically, frequency nadir, Rate-of-Change-of-Frequency (RoCoF), and the required energy during the ...
Suul, Jon Are Wold +2 more
core +1 more source