Results 41 to 50 of about 2,662,256 (336)

On Stability of a Distributed Averaging PI Frequency and Active Power Controlled Differential-Algebraic Power System Model [PDF]

open access: yes, 2017
We consider the problems of stability, frequency restoration and optimal steady-state resource allocation in a heterogeneous and structure-preserving differential-algebraic equation (DAE) power system model.
Dörfler, F, Schiffer, JF
core   +1 more source

Two-stage power system restoration model

open access: yesGlobal Energy Interconnection
In response to the need for robust black-start strategies in modern smart grids during blackouts, this paper proposes a two-stage black-start model that integrates wind turbines (WT), photovoltaic generators (PV), and energy storage systems (ESS).
Hong Yang   +3 more
doaj   +1 more source

Collaborative Optimization of Post-Disaster Damage Repair and Power System Operation

open access: yesEnergies, 2018
After disasters, enhancing the resilience of power systems and restoring power systems rapidly can effectively reduce the economy damage and bad social impacts.
Han Zhang, Gengfeng Li, Hanjie Yuan
doaj   +1 more source

Frequency Restoration Reserve Control Scheme with Participation of Industrial Loads

open access: yes, 2013
In order to accommodate larger amounts of renewable energy resources, whose power output is inherently unpredictable, there is an increasing need for frequency control power reserves. Loads are already used to provide replacement reserves, i.e.
Fabozzi, D, Pal, BC, Thornhill, NF
core   +1 more source

Allocation of synchronous condensers for restoration of system short-circuit power [PDF]

open access: yes, 2017
Modern power systems, employing an increasing number of converter-based renewable energy sources (RES) and decreasing the usage of conventional power plants, are leading to lower levels of short-circuit power and rotational inertia. A solution to this is
Marrazi, Emanuel   +2 more
core   +1 more source

PI2 controller based coordinated control with Redox Flow Battery and Unified Power Flow Controller for improved Restoration Indices in a deregulated power system

open access: yesAin Shams Engineering Journal, 2016
The nature of power system restoration problem involves status assessment, optimization of generation capability and load pickup. This paper proposes the evaluation of Power System Restoration Indices (PSRI) based on the Automatic Generation Control (AGC)
R. Thirunavukarasu, I.A. Chidambaram
doaj   +1 more source

Power System Control Centers and Their Role in the Restoration Process after a Major Blackout

open access: yesWSEAS Transactions on power systems, 2023
Power control centers have evolved since their ground-breaking inception in the 1960s, and they are extremely important for the operation of the power system, ensuring maximum reliability.
G. Fotis, C. Pavlatos, V. Vita
semanticscholar   +1 more source

A novel ANN fault diagnosis system for power systems using dual GA loops in ANN training [PDF]

open access: yes, 2000
Fault diagnosis is of great importance to the rapid restoration of power systems. Many techniques have been employed to solve this problem. In this paper, a novel Genetic Algorithm (GA) based neural network for fault diagnosis in power systems is ...
Bi, TS, Ni, YX, Shen, CM, Wu, FF
core   +1 more source

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]

open access: yes, 2019
Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden   +11 more
core   +1 more source

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