Results 11 to 20 of about 759,519 (200)

Secure High DER Penetration Power Distribution Via Autonomously Coordinated Volt/VAR Control [PDF]

open access: yes, 2020
Traditionally voltage control in distribution power system (DPS) is performed through voltage regulating devices (VRDs) including on load tap changers (OLTCs), step voltage regulators (SVRs), and switched capacitor banks (SCBs). The recent IEEE 1547-2018
Joseph, Anto   +2 more
core   +1 more source

Coupled single-port method based voltage stability assessment with inverter-based generators

open access: yesEnergy Reports, 2023
With the increase of inverter-based generators in the power system, the proportion of traditional generators is decreasing, and their voltage support ability to the power system is weakening, the power system operation is approaching to its voltage ...
Zhenchuan Ma   +5 more
doaj   +1 more source

Voltage Stability Analysis of Grid-Connected Wind Farms with FACTS: Static and Dynamic Analysis [PDF]

open access: yes, 2015
Recently, analysis of some major blackouts and failures of power system shows that voltage instability problem has been one of the main reasons of these disturbances and networks collapse.
Angeles-Camacho C.   +9 more
core   +2 more sources

A Recap of Voltage Stability Indices in the Past Three Decades

open access: yesEnergies, 2019
Increasing demand for electricity and the modernization of power systems within competitive markets has induced power systems to operate close to their stability limits.
Mir Sayed Shah Danish   +5 more
doaj   +1 more source

Discrete breathers in a nonlinear electric line: Modeling, Computation and Experiment [PDF]

open access: yes, 2011
We study experimentally and numerically the existence and stability properties of discrete breathers in a periodic nonlinear electric line. The electric line is composed of single cell nodes, containing a varactor diode and an inductor, coupled together ...
F. Palmero   +7 more
core   +3 more sources

Impact of HVDC transmission capacity on multi-send HVDC system voltage stability

open access: yesEnergy Reports, 2022
The massive construction of high voltage direct current (HVDC) makes the AC/DC interactions very complicated, which seriously affects transient voltage stability.
Mingjie Wang, Gang Zhang, Zhe Zhang
doaj   +1 more source

Suppression of Second-Order Harmonic Current for Droop-Controlled Distributed Energy Resource Converters in DC Microgrids [PDF]

open access: yes, 2020
Droop-controlled distributed energy resource converters in dc microgrids usually show low output impedances. When coupled with ac systems, second-order harmonics typically appear on the dc-bus voltage, causing significant harmonic currents at the ...
Caldognetto, Tommaso   +3 more
core   +1 more source

Implementation of Static Line Voltage Stability Indices for Improved Static Voltage Stability Margin

open access: yesJournal of Electrical and Computer Engineering, 2019
Nowadays, the changes of economic, environment, and regulations are forcing the electric utilities to operate systems at maximum capacity. Therefore, the operation and control of power system to improve the system stability has been receiving a great ...
Natakorn Thasnas, Apirat Siritaratiwat
doaj   +1 more source

Voltage Stability Assessments and Their Improvement Using Optimal Placed Static Synchronous Compensator (STATCOM)

open access: yesJournal of Electrical and Computer Engineering, 2022
In this paper, static voltage stability assessments and their improvement using analytical and optimization techniques with different loading scenarios are described.
Tebeje Tesfaw Wondie, Teshome Goa Tella
doaj   +1 more source

Voltage and frequency instability in large PV systems connected to weak power grid

open access: yesFrontiers in Energy Research, 2023
The voltage and frequency control of photovoltaic (PV) systems are influenced by coupled nonlinear factors. It has been discovered that frequency control stability is threatened by voltage regulation methods in PV systems.
Qianjin Zhang   +5 more
doaj   +1 more source

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