Results 51 to 60 of about 5,625 (121)

A Time-Limited Adaptive Reclosing Method in Active Distribution Networks Considering Anti-Islanding Protection [PDF]

open access: yes
In active distribution networks (DNs), distributed energy resources (DERs) must be disconnected from the grid prior to automatic reclosing actions. Many scholars have proposed non-voltage checking reclosing methods, but a significant challenge arises ...
Zhichun Yang   +6 more
core   +1 more source

An Industrial Adaptive PID Controller [Elektronisk resurs] [PDF]

open access: yes, 1990
This paper presents a new industrial adaptive PID controller. The controller has the PID structure, with dual rate sampling, which means that the sampling rate for the PID controller is significantly higher than the sampling rate in the parameter ...
Hägglund, Tore,   +2 more
core   +1 more source

An adaptive single-phase reclosing of line in the scheme with intermediate system [PDF]

open access: yes, 2019
Providing the reliability of adaptive single-phase reclosing (ASPR) in line equipped with any number of shunt reactors (SR), including the case of their absence, are considered and analyzed in this paper. The essence of the proposed work is that in order
Tatyana Krasil–nikova   +2 more
core   +1 more source

An Adaptive Reclosing Scheme for Cross-Line Faults on Double-Circuit Wind Power Outgoing Lines with Shunt Reactors [PDF]

open access: yes
Wind turbines are vulnerable to negative sequence current injection, the conventional automatic reclosing scheme for wind power outgoing lines, since we may inject negative sequence components into the system and reclose it without distinguishing the ...
Sen Hu, Chunya Yin, Chao Xie
core   +1 more source

TRANSIENT STABILITY IMPROVEMENT OF EHV POWER TRANSMISSIONS BY ADAPTIVE SINGLE-POLE RECLOSING [PDF]

open access: yes, 1985
Some special aspects of the stability properties of EHV power transmissions are pointed out in the introduction, followed by a more detailed analysis of the impact of single-pole short circuits and automatic reclosing.
Rácz, László
core   +1 more source

Spectrum Detection for Cognitive Radio Based on Auto-Adaptive Threshold [PDF]

open access: yes, 2011
This paper proposed a cooperative spectrum sensing scheme based on auto-adaptive threshold in multi-user cognitive radio network, which can improve detection performance of cognitive user. According to closed-form expressions of detection probability, we
Chun Yu Miao, Li Na Chen
core   +1 more source

Adaptive step-size digital controller for switching frequency auto-tuning [PDF]

open access: yes, 2008
A switching frequency auto-tuning digital controller for a power converter with adaptive step-size is presented in this paper. The controller automatically tracks and finds the switching frequency of a power converter in order to achieve highest power ...
Jaber A. Abu Qahouq   +9 more
core   +1 more source

Detection of secondary arc extinction for adaptive single phase auto‐reclosing based on local voltage behaviour

open access: yesIET Generation, Transmission & Distribution, 2017
This study presents a non‐communication based algorithm for detection of secondary arc extinction for adaptive single phase auto‐reclosing of transmission lines. The algorithm is based on the behaviour pattern of the faulted phase voltage magnitude (VM) measured at the near end of the line.
Sadegh Jamali, Arman Ghaderi Baayeh
openaire   +1 more source

Development of a novel single-phase auto-reclosing scheme for distribution network with integrated distributed generation. [PDF]

open access: yes, 2010
According to G59 recommendation, the common practice adopted by utilities in the UK is to disconnect Distributed generators (DGs) immediately once a network fault is detected to prevent islanding operation and disruption of the operation of conventional ...
Tan, Sock Fua
core   +1 more source

A Biased Approach to Nonlinear Robust Stability with Applications in Adaptive Control [PDF]

open access: yes, 2009
The nonlinear robust stability theory of Georgiou and Smith (IEEE Trans. Auto. Control, 42(9):1200--1229, 1997) is generalized to the case of notions of stability with bias terms.
Bian, Wenming   +3 more
core   +1 more source

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