Results 41 to 50 of about 3,505,439 (294)

Adaptive Under-Frequency Load Shedding Control Strategy of Power Systems With Wind Turbines and UHVDC Participating in Frequency Regulation

open access: yesFrontiers in Energy Research, 2022
Represented by wind turbines and ultra high-voltage DC (UHVDC), the power-electronic interfaced power sources participate in fast frequency control, which has a significant impact on the power system frequency.
Xingyang Wu   +3 more
doaj   +1 more source

Reinforcement Learning for Stability-Guaranteed Adaptive Optimal Primary Frequency Control of Power Systems Using Partially Monotonic Neural Networks

open access: yesIEEE Open Access Journal of Power and Energy
Deepening the deployment of distributed energy resources requires the large-scale integration of inverter-based resources, which can deteriorate the frequency stability.
Hamad Alduaij, Yang Weng
doaj   +1 more source

Contingency Analysis of a Grid Connected EV's for Primary Frequency Control of an Industrial Microgrid Using Efficient Control Scheme

open access: yesEnergies, 2022
After over a century of internal combustion engines ruling the transport sector, electric vehicles appear to be on the verge of gaining traction due to a slew of advantages, including lower operating costs and lower CO2 emissions. By using the Vehicle-to-
Jayalakshmi N. Sabhahit   +5 more
doaj   +1 more source

Techno-Economic Analysis and Optimal Control of Battery Storage for Frequency Control Services, Applied to the German Market

open access: yes, 2019
Optimal investment in battery energy storage systems, taking into account degradation, sizing and control, is crucial for the deployment of battery storage, of which providing frequency control is one of the major applications.
Claessens, Bert   +2 more
core   +1 more source

Control of VSC-HVDC with electromechanical characteristics and unified primary strategy [PDF]

open access: yes, 2016
High voltage dc (HVDC) systems act as the prevailed solution for transmitting offshore wind energy to onshore main grids. Control of the voltage source converters (VSC) in HVDC systems is decisive for the performance.
Candela García, José Ignacio   +4 more
core   +1 more source

A Coherency Identification Method of Active Frequency Response Control Based on Support Vector Clustering for Bulk Power System

open access: yesEnergies, 2019
Active frequency response (AFR) control is needed in current power systems. To solve the over-frequency problems of generators connected to non-disturbed buses during the AFR control period, the generators should be clustered into coherent groups.
Cuicui Jin   +4 more
doaj   +1 more source

Pulse-rate averaging circuit [PDF]

open access: yes, 1970
Averaging circuit provides a secondary control signal during inoperative periods of an intermittent primary control system. It can also provide an average pulse rate over a fixed time interval, such as in a digital frequency ...
Jessee, R. D.
core   +1 more source

Robustness of the Thirty Meter Telescope Primary Mirror Control System [PDF]

open access: yes, 2010
The primary mirror control system for the Thirty Meter Telescope (TMT) maintains the alignment of the 492 segments in the presence of both quasi-static (gravity and thermal) and dynamic disturbances due to unsteady wind loads.
MacMynowski, Douglas G.   +3 more
core   +1 more source

Stereotactic Body Radiation Therapy for Pediatric, Adolescent, and Young Adult Patients With Osteosarcoma: Local Control Outcomes With Dosimetric Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Osteosarcoma is a radioresistant tumor that may benefit from stereotactic body radiation therapy (SBRT) for locoregional control in metastatic/recurrent disease. We report institutional practice patterns, outcomes, toxicity, and failures in osteosarcoma patients treated with SBRT.
Jenna Kocsis   +13 more
wiley   +1 more source

Aggregation of EVs for Primary Frequency Control of an Industrial Microgrid by Implementing Grid Regulation & Charger Controller

open access: yesIEEE Access, 2020
After nearly a century with internal combustion engines dominating the transportation sector, it now appears that electric vehicles (EVs) are on the brink of enjoying rapid development due to numerous useful features they possess, such as less ...
Sheeraz Iqbal   +7 more
doaj   +1 more source

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