Results 71 to 80 of about 3,509,685 (196)
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
Investigation Of Device For Geophysical Exploration At Shallow Depth [PDF]
, 2017 The article presents the results of the development of the echolocation device for geophysical exploration at shallow depth. The principle of operation, block diagram and time diagrams of the echolocation device for geophysical exploration at shallow ...
Kuldashev, O. (Obbozzhon) +1 more
core +2 more sources
Geographically Coordinated Primary Frequency Control Technical Report
, 2017 Primary Frequency Control (PFC) is a fast acting mechanism used to ensure high-quality power for the grid that is becoming an increasingly attractive option for load participation. Due to speed requirement and other considerations, it is often desirable to have distributed control laws.
Comden, Joshua +4 more
openaire +2 more sources
Grid Support with Wind Turbines: The Case of the 2019 Blackout in Flensburg
Energies, 2021 The work presented in this paper aims to show how modern wind turbines can help to control the frequency in a small grid which suffers from large power imbalances. It is shown for an exemplary situation, which occurred in Flensburg’s distribution grid in
Arne Gloe, Clemens Jauch, Thomas Räther
doaj +1 more source
Temporal Modulation of the Control Parameter in Electroconvection in the Nematic Liquid Crystal I52
, 2000 I report on the effects of a periodic modulation of the control parameter on electroconvection in the nematic liquid crystal I52. Without modulation, the primary bifurcation from the uniform state is a direct transition to a state of spatiotemporal chaos.
D. Walgraef +24 more
core +1 more source
Efficacy and safety of eslicarbazepine acetate monotherapy in patients converting from carbamazepine. [PDF]
, 2018 OBJECTIVE: To evaluate the influence of prior use of carbamazepine (CBZ) and other antiepileptic drugs (AEDs) with a putatively similar mechanism of action (inhibition of voltage-gated sodium channels; VGSCs) on seizure outcomes and tolerability when ...
Abou-Khalil +11 more
core +2 more sources
A Research on Primary Frequency Control Strategy
DEStech Transactions on Engineering and Technology Research, 2017 There are the overshoot phenomena of the active power regulation in some regions, which goes against the reliability and the economics of the power system. The Strategy of primary frequency control is not reasonable for regulation. The influence of current primary frequency control strategy is discussed. A new strategy considering cooperation of AGC is
Xianbo MENG, Jianguo YAO, Feng LI
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Lessons Learnt from Modelling and Simulating the Bottom-Up Power System Restoration Processes
Energies, 2022 This paper aims to present the gained experience in modeling and simulating bottom-up power system restoration processes. In a system with low inertia, such as a restoration path, the Common Information Models for the regulation systems appear to no ...
Roberto Benato +2 more
doaj +1 more source
Impact of frequency estimation for VSC-based devices with primary frequency control [PDF]
2017 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2017 This paper presents a comparison of the performance of frequency control devices considering different techniques to estimate the frequency deviation signal. We consider three estimation techniques, namely the center of inertia (COI), the frequency divider (FD) formula, and the phase-locked loop (PLL).
Ortega, Alvaro, Milano, Federico
openaire +1 more source
Optimization of constant power control of wind turbines to provide power reserves [PDF]
, 2013 In several countries, the wind power penetration increased tremendously in the last years. As the current wind turbines do not participate in frequency control nor reserve provision, this may compromise the proper functioning of the primary control and ...
De Kooning, Jeroen +4 more
core +1 more source