Results 51 to 60 of about 3,509,685 (196)
Pulse-rate averaging circuit [PDF]
, 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
A ripple reduction method for a two stages battery charger with multi-winding transformer using notch filter [PDF]
, 2017 This paper presents a two-stage battery charger consisting of a bridgeless Totem-pole power factor correction (TP-PFC) circuit and a full bridge converter with a multi-winding transformer.
Allanf, Peter +5 more
core +2 more sources
Adaptive Frequency Responsive Control for Wind Farm Considering Wake Interaction
Journal of Modern Power Systems and Clean Energy, 2021 With the increasing share of wind power, it is expected that wind turbines would provide frequency regulation ancillary service. However, the complex wake effect intensifies the difficulty in controlling wind turbines and evaluating the frequency ...
Xue Lyu, Youwei Jia, Zhaoyang Dong
doaj +1 more source
Distributed Secondary Frequency Control through MTDC Transmission Systems
, 2015 In this paper, we present distributed controllers for sharing primary and secondary frequency control reserves for asynchronous AC transmission systems, which are connected through a multi-terminal HVDC grid.
Andersson, Göran +4 more
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Periodicity and frequency coding in human auditory cortex [PDF]
, 2006 Understanding the neural coding of pitch and frequency is fundamental to the understanding of speech comprehension, music perception and the segregation of concurrent sound sources. Neuroimaging has made important contributions to defining the pattern of
Edmondson-Jones, AM +2 more
core +1 more source
EnergiesThis study aims to reduce reverse power and improve frequency regulation performance in hydropower systems. To achieve this objective, a refined hydropower plant (HPP) simulation model is developed and coupled with a battery energy storage system (BESS),
Yifeng Gu +6 more
doaj +1 more source
Dual-loop primary frequency regulation controller for VSC-HVDC system [PDF]
2017 IEEE Manchester PowerTech, 2017 This paper presents a frequency control mechanism for an AC system through the active and reactive power loops of a VSC-HVDC system. The proposed scheme makes use of the reactive power loop for inertia support by exploiting the voltage-power sensitivity of loads, and active power droop control has been used to provide governor-like support following ...
Shah, Rakibuzzaman +2 more
openaire +2 more sources
Applied SciencesChile’s National Electric System is one of the countries in South America with the greatest potential for the development of solar–wind generation, allowing for the acceleration of the energy transition with the definitive withdrawal of conventional ...
Kristian Balzer +5 more
doaj +1 more source
Advances in Electrical and Electronic Engineering, 2021 Motivation and complex process of energy storage technology and converter topology design suitable for integration in thermal power plant systems to improve flexibility and primary frequency control is presented in the paper.
Martin Vins +2 more
doaj +1 more source
Energy limits in primary frequency control with short-term frequency-band allocation
IEEE PES Innovative Smart Grid Technologies, Europe, 2014 Frequency stability of large power systems requires the use of very fast flexible resources to contain frequency excursions. Potential candidates able to provide such flexibility are demand response and storage. However, capacity and energy constraints usually restrict their use to exceptional and rare events.
Latiers, Arnaud +3 more
openaire +2 more sources