Results 21 to 30 of about 201,444 (292)

A Generalized Index for Static Voltage Stability of Unbalanced Polyphase Power Systems including Th\'evenin Equivalents and Polynomial Models [PDF]

open access: yes, 2019
This paper proposes a Voltage Stability Index (VSI) suitable for unbalanced polyphase power systems. To this end, the grid is represented by a polyphase multiport network model (i.e., compound hybrid parameters), and the aggregate behavior of the devices
Kettner, Andreas Martin, Paolone, Mario
core   +2 more sources

EVALUATION OF EFFECT OF REACTIVE POWER CONTROL STRATEGY BASED ON VOLTAGE TERMINAL OF GENERATORS ON LIMIT INDUCED BIFURCATION AND DYNAMIC VOLTAGE STABILITY MARGIN [PDF]

open access: yesمجله مدل سازی در مهندسی, 2013
Reactive power limit of power system generators has a significant effect on the static voltage stability margin such as maximum load ability point and dynamic voltage stability margin such as HB, LIB and SNB.
M.H. Velayati, N. Amjady, I. Khajevandi
doaj   +1 more source

Effects of energy storage systems grid code requirements on interface protection performances in low voltage networks [PDF]

open access: yes, 2017
The ever-growing penetration of local generation in distribution networks and the large diffusion of energy storage systems (ESSs) foreseen in the near future are bound to affect the effectiveness of interface protection systems (IPSs), with negative ...
Bignucolo, Fabio   +4 more
core   +2 more sources

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

Impact of random dopant induced fluctuations on sub-15nm UTB SOI 6T SRAM cells [PDF]

open access: yes, 2005
The CMOS scaling increases the impact of intrinsic parameter fluctuation on the yield and functionality of SRAM. A statistical circuit simulation framework which can fully capture intrinsic parameter fluctuation information into the compact model has ...
Asenov, A.   +4 more
core   +1 more source

Static analysis of voltage stability with DFIG

open access: yesScience and Technology Development Journal, 2016
The static voltage stability analysis is carried out by V-Q sensitivity or Q-V modal analysis. These analyses are based on the Jacobian matrix of power flow calculation. This is regarded as load bus stability analysis. With DFIG of PQ mode, the wind generation bus is considered as the PQ bus.
Au Ngoc Nguyen   +2 more
openaire   +2 more sources

Research on power system static voltage stability considering geomagnetic disturbances effect

open access: yesEngineering Reports, 2021
The reactive power losses caused by the power grid Geomagnetically Induced Current (GIC) severely disturb the static voltage stability of power systems, and may even trigger voltage collapses.
Pei‐Hong Yang   +4 more
doaj   +1 more source

Short circuit study of fixed speed wind turbines with STATCOM in distribution networks [PDF]

open access: yes, 2015
The increased penetration of wind farm in distribution networks has brought changes in the performance of the whole system. Such disadvantages when connecting one of these distributed generation sources is reduced voltage and power stability of the AC ...
Darwish, M, Naain, MM, Zobaa, AF
core   +1 more source

UTB SOI SRAM cell stability under the influence of intrinsic parameter fluctuation [PDF]

open access: yes, 2005
Intrinsic parameter fluctuations steadily increases with CMOS technology scaling. Around the 90nm technology node, such fluctuations will eliminate much of the available noise margin in SRAM based on conventional MOSFETs.
Asenov, A.   +4 more
core   +1 more source

Static Voltage Stability Analysis for Islanded Microgrids

open access: yes, 2023
The ongoing development of renewable energy and microgrid technologies has gradually transformed the conventional energy infrastructure into a modernized system with more distributed generation and localized energy storage options. Compared with power grids utilizing synchronous generation, inverter-based networks cannot physically provide large ...
openaire   +2 more sources

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