Results 31 to 40 of about 6,985 (272)
System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]
, 2019 Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden +11 more
core +1 more source
A Fuzzy Approach for Overcurrent Relays Simulation [PDF]
, 2003 Accurate models for Overcurrent relays (OC) with inverse time characteristics have an important role for efficient coordination of power system protection devices. This paper proposes a new method for modelling of OC relays based on fuzzy logic. The new model is more accurate than traditional models and has been validated by comparing it with the ...
Hossein Askarian Abyaneh +2 more
openaire +1 more source
Replacement of several single function generator protection relay at Badak LNG [PDF]
MATEC Web of Conferences, 2019 Badak LNG is a company that operates the largest LNG Plant in Indonesia with maximum production capacity of 22.5 MTPA. The company operates twelve (12) steam turbine generators and one gas turbine generator and one diesel engine generator to supply ...
Perdana Iqbal Nusya
doaj +1 more source
A dynamic modelling environment for the evaluation of wide area protection systems [PDF]
, 2008 This paper introduces the concept of dynamic modelling for wide area and adaptive power system protection. Although not limited to these types of protection schemes, these were chosen due to their potential role in solving a multitude of protection ...
Abdulhadi, I.F. +3 more
core +1 more source
Protection Coordination of 33/11 kV Power Distribution Substation in Iraq [PDF]
Engineering and Technology Journal, 2021 The coordination between protective devices is the process of determining the most appropriate timing of power interruption during abnormal conditions in the power system.
Thamir Abdul-Wahhab, Yamur Obied
doaj +1 more source
Time overcurrent adaptive relay
International Journal of Electrical Power & Energy Systems, 2003 In this paper we recommend an inverse time overcurrent adaptive relay. This adaptive relay has a greater sensitivity and reduced operating times using only the information available at the relay's site. We herein describe the functional structure of the overcurrent adaptive relay, its implementation and the results obtained in laboratory tests with ...
Arturo Conde Enrı́quez +2 more
openaire +1 more source
Harmonic Dual-Setting Directional Overcurrent Protection for Inverter-Based Islanded Microgrids
IEEE Access, 2023 Limited fault currents in inverter-interfaced islanded microgrids impose immense challenges on conventional overcurrent protection schemes. This paper proposes a sensitive and selective protection scheme for islanded microgrids using a third harmonic ...
Talal Elemamali Sati +2 more
doaj +1 more source
Current–time characteristics of resistive superconducting fault current limiters [PDF]
, 2012 Superconducting fault current limiters (SFCLs) may play an important role in power-dense electrical systems. Therefore, it is important to understand the dynamic characteristics of SFCLs.
Blair, Steven Macpherson +2 more
core +1 more source
Overcurrent Relay for Generation Distribution Utilization
ELEKTRIKA- Journal of Electrical Engineering, 2022 Distributed Generation (DG) is the production of electricity from a variety of renewable energy sources that is closer to the customer and load. The addition of distributed generation sources to the distribution networks alters the characteristics of distribution system and has an influence on its protection coordination.
Sarah Herul Anuar, Rasyidah Mohd Idris
openaire +1 more source
Distance Protection for Microgrids in Distribution System [PDF]
, 2015 Owing to the increasing penetration of distributed generation, there are some challenges for the conventional protection in distribution system. Bidirectional power flow and variable fault current because of the various operation modes may lead to the ...
Guerrero, Josep M. +3 more
core +2 more sources