Results 21 to 30 of about 177,209 (302)

A Markovian jump system approach for the estimation and adaptive diagnosis of decreased power generation in wind farms [PDF]

open access: yes, 2019
In this study, a Markovian jump model of the power generation system of a wind turbine is proposed and the authors present a closed-loop model-based observer to estimate the faults related to energy losses.
Peñarrocha-Alós, Ignacio   +1 more
core   +2 more sources

DC-bus power quality for aircraft power systems during generator fault conditions [PDF]

open access: yesIET Electrical Systems in Transportation, 2011
Higher-voltage, 540V, aircraft DC-bus power quality is examined experimentally and by computer simulation during a short-circuit fault across the phase terminals of a 70kW, five-phase, permanent magnet fault-tolerant generator. The DC-bus transients caused by the short-circuiting of the generator phases are seen to exceed the limits in MIL-STD-704F and
Todd, R., Forsyth, A. J.
openaire   +2 more sources

Transient stability emergency control of power systems employing UFLS combined with generator tripping method [PDF]

open access: yes, 2010
This paper concerns with transient stability control which is part of transient stability assessment which needs to be considered so that the power systems remained intact when failures originating from faults occurred in power systems. Conventional UFLS
Abdul Wahab, Noor Izzri, Mohamed, Azah
core   +1 more source

Fault Detection and Classification in Interconnected System with Wind Generation Using ANN and SVM

open access: yesAdvances in Electrical and Electronic Engineering, 2022
Protective relays are installed in generation, transmission, and distribution system for detection, classification, and estimation of faults. To match the future load demand and to get uninterrupted power supply, use of renewable energy sources are ...
Hinal Shah   +2 more
doaj   +1 more source

Wind turbine condition assessment through power curve copula modeling [PDF]

open access: yes, 2012
Power curves constructed from wind speed and active power output measurements provide an established method of analyzing wind turbine performance. In this paper it is proposed that operational data from wind turbines are used to estimate bivariate ...
Galloway, Stuart   +2 more
core   +1 more source

Turn-to-turn fault protection technique for synchronous machines without additional voltage transformers [PDF]

open access: yes, 2017
This paper presents a novel protection technique for the detection of inter-turn faults in synchronous machines. It is based on the calculation of voltage in the stator windings from the usual phases and neutral voltage, typically available in ...
Gyftakis, Konstantinos N.   +2 more
core   +1 more source

Voltage sag assessment using an extended fault positions method and Monte Carlo simulation

open access: yesDyna, 2016
In this article, we propose an extended fault positions method combined with the Monte Carlo method to evaluate voltage sags. The distribution function SARFI is obtained by taking into account the randomness of (i) location of faults in lines, (ii ...
Jorge Washington Sagre   +2 more
doaj   +1 more source

An enhanced sensitive power differential protection for series compensated transmission lines in renewable generation intensive power systems

open access: yesEngineering Science and Technology, an International Journal, 2023
Series compensation is widely used to improve the electrical characteristics of long transmission lines and increase the power transfer capability. However, the insertion of a series capacitor introduces various phenomena that affect the performance of ...
Patrick T. Manditereza
doaj   +1 more source

Research on evaluation method of energy supply reliability of regional energy Internet [PDF]

open access: yesE3S Web of Conferences, 2021
This paper studies the reliability evaluation technology of regional energy Internet and represents a reliability evaluation method considering the optimal load reduction strategy. The application scenario of regional Energy Internet with power system as
Li Pengli   +4 more
doaj   +1 more source

Preventive Control Strategy of Cascading Fault considering Safety and Economy

open access: yesJournal of Electrical and Computer Engineering, 2021
The operation and structure of the power system are becoming increasingly complex, and the probability of cascading fault increases. To this end, this paper proposes a cascading fault preventive control strategy that considers safety and the economy ...
Hui-Qiong Deng   +4 more
doaj   +1 more source

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