Results 71 to 80 of about 1,558,129 (300)
Frequency dynamics during high CCGT and wind penetrations [PDF]
, 2011 Presented at AUPEC 2011, Australasian Universities Power Engineering Conference, Brisbane, Australia, 25 - 28 September 2011Frequency stability is the paramount concern for secure and reliable operation of a power system. High wind penetration levels are
Flynn, Damian, Meegahapola, Lasantha
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Coordinated Sending-End Power System Frequency Regulation via UHVDC [PDF]
, 2021 The continuous improvement of new energy penetration reduces the inertia of the system, which leads to the frequency deviation and the rate of change of frequency (RoCoF) being easily exceeded.
Hongqing Liu +7 more
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Energy Science & EngineeringUnder the dual‐carbon goal, due to the long‐term operation of thermal power units under wide load and frequent fluctuating load after heat supply transformation, the dynamic process of subcritical units is modeled, and a frequency modulation optimization
Jingqiu Kang +8 more
doaj +1 more source
A Comprehensive Approach to Evaluate Frequency Control Strength of Power Systems
IEEE Open Access Journal of Power and EnergyThis industry-oriented paper introduces the concept of ‘frequency control strength’ as a novel approach to understand how different real-world power systems compare to each other in terms of effectiveness and performance of system-wide ...
Taulant Kerci, Federico Milano
doaj +1 more source
IEEE Access, 2023 Increasing renewable energy generation is leading to reduced inertia in electric power systems. This challenges conventional frequency control methods, as frequency deviations become faster and more pronounced. One possible approach to maintaining system
Leo Casasola-Aignesberger +1 more
doaj +1 more source
Comparison of the dynamic response of wind turbine primary frequency controllers [PDF]
2017 IEEE Power & Energy Society General Meeting, 2017 This paper presents a comparison of a variety of control strategies for the primary frequency control of wind power plants. These strategies include inertial as well as pitch angle regulators. The inertial control is sensitive to both the frequency variation through a standard droop control, and the rate of change of frequency.
João José Cerqueira +4 more
openaire +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Energies, 2021 In power systems, high renewable energy penetration generally results in conventional synchronous generators being displaced. Hence, the power system inertia reduces, thus causing a larger frequency deviation when an imbalance between load and generation
Md Ruhul Amin +4 more
doaj +1 more source
FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
Frequency domain iterative feedforward/feedback tuning for MIMO ANVC [PDF]
, 2007 A new iterative feedback/feed-forward tuning (IFFT) method is presented for multiple-input multiple-output (MIMO) control systems that relies on efficient computation of the negative gradient of the controller cost function in the frequency domain.
Veres, S.M., Luo, J.
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