Results 71 to 80 of about 11,997 (226)

Power balancing and dc fault ride through in DC grids with dc hubs and wind farms [PDF]

open access: yes, 2015
Acknowledgment This project was funded by European Research Council under the Ideas program in FP7; grant no 259328, 2010.Peer ...
Jovcic, Dragan, Lin, Weixing
core   +1 more source

Advanced Clustering and Optimisation Techniques for Adaptive Protection in AC Microgrids With Hardware‐in‐the‐Loop Testing

open access: yesEnergy Science &Engineering, Volume 14, Issue 1, Page 377-398, January 2026.
Standard and proposed non‐standard OCR characteristics. ABSTRACT This study introduces an advanced adaptive protection approach for AC power systems, designed to address key limitations in current clustering‐based relay coordination methods. Using K‐means, hierarchical, and spectral clustering techniques, the proposed scheme classifies grid operating ...
Feras Alasali   +6 more
wiley   +1 more source

Implementation of Hydrogenerator Overcurrent Protection with Minimum Voltage Blockage Using Embedded Systems [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2015
This paper presents a modern and efficient solution for the implementation of the hydrogenerator overcurrent protection with minimum voltage blockage.
PURCARU Dorina   +2 more
doaj  

Prediction of Ignition Possibility of Self‐Regulating Heating Cable Using Current Signature Analysis

open access: yesFire and Materials, Volume 50, Issue 1, Page 94-107, January/February 2026.
ABSTRACT A self‐regulating heating cable (SRHC), which has the advantages of ease of use and economic feasibility, is widely used in various industrial processes to prevent the freezing of pipes and maintain temperature. However, if the SRHC, a heating element, loses its temperature control ability due to internal and external factors, it may ignite ...
Dong‐Young Lim   +2 more
wiley   +1 more source

Assessment of an Overcurrent Protection Strategy Based on Thermal Stress Curves in Distribution Networks Under Reconfiguration Scenarios

open access: yesIEEE Access
Network reconfiguration enables the restoration of power supply in interrupted areas after faults or planned maintenance events. However, changes in network topology can often lead to alteration in the direction and magnitude of fault currents ...
Michele Rojnic   +3 more
doaj   +1 more source

Study of Coordination on Protection Relay in High Voltage Transmission 150 kV (Payakumbuh – Koto Padang, West Sumatra)

open access: yesMATEC Web of Conferences, 2018
The disturbance of the high voltage transmission can be caused by a short circuit, overload, lightning surge, and other natural disturbances. That disturbance can lead to disruption of the distribution of electricity and damage to the electric power ...
Zulkarnaini Zulkarnaini, Rizki Muhammad
doaj   +1 more source

Demonstration of sustained and useful converter responses during balanced and unbalanced faults in microgrids [PDF]

open access: yes, 2012
In large power grids where converter penetration is presently low and the network impedance is predominantly reactive, the required response from converters during faults is presently specified by phrases such as “maximum reactive output”.
Burt, Graeme   +4 more
core   +1 more source

A Hybrid Ultra‐High Voltage DC Transformer With Digital Twin‐Driven Operation and Control

open access: yesDigital Twins and Applications, Volume 3, Issue 1, January/December 2026.
This study introduces a digital twin‐driven hybrid ultra‐high‐voltage DC transformer (UHVDCT) that combines high‐capacity LCCs with low‐capacity MMCs at the UHV side. This innovative topology reduces MMC requirements by 32.9% while ensuring stable power flow and dynamic reactive balance through real‐time virtual‐physical synchronization.
Ling Xu   +6 more
wiley   +1 more source

Grounding Fault Protection Scheme for 0.4 kV Switchgear in Metro Substations

open access: yesChengshi guidao jiaotong yanjiu
[Objective] Single-phase grounding faults account for over 80% of the total distribution line faults, with most inter-phase faults originating from single-phase grounding faults.
ZHOU Wenwei
doaj   +1 more source

Migration Between Two Inverse Time-Overcurrent Curves of Different Standard: Experience at Siguragura Power Station

open access: yesJurnal Nasional Teknik Elektro, 2019
The inevitable replacement of electro-mechanical protection relays with more recently-developed microprocessor-based protection relays poses challenges to engineer, one of which is migration from existing manufacturer’s non-standard inverse time ...
Bagus Brahmantya Gautama
doaj   +1 more source

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