Analysis of current protection in distribution networks with clean energy access
Frontiers in Energy Research, 2023 With the rapid development of the new energy industry, distributed generation (DG) is connected to the power grid on a large scale, and the traditional relay protection scheme is no longer suitable for modern power systems. In order to solve this problem,
Huang Kun +5 more
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Analysis on Application of Impressed Current Cathodic Protection for Buried Pipelines under AC Interference [PDF]
Cailiao Baohu, 2022 In order to study the effectiveness of pipeline cathodic protection system in preventing AC interference corrosion under AC interference， the testing device for stray current interference of buried steel pipelines was established， and the influence of ...
GUO Yong, DING Jifeng, GAO Zhixian, YIN An, ZHANG Bo, YANG Chaohui, LI Xiangyang
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Researching the Blocking of Current Protection of Electrical Power Units with Transformers
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2020 The magnetizing current inrush appears in electrical power units equipped with transformers in case of no-load energizing of the power transformers and in a number of other cases.
F. A. Romaniuk +4 more
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IET Generation, Transmission & Distribution, 2023 The algorithms of the present generation of practical differential relays are based on two methods. The first method is based on the ratio of the harmonic content of the differential current, and the second one is based on the length of the time interval
Ali Sahebi +4 more
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Design and operation of a protection system for transformers with superconducting windings [PDF]
, 1985 Power transformers with superconducting windings need a protection system to prevent damage to the low-loss superconducting winding by an abnormally high current.
Klundert, L.J.M. van de +2 more
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All-optical differential current detection technique for unit protection applications [PDF]
, 2013 In this paper we demonstrate a novel, all-optical differential current protection scheme. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and using a simple optoelectronic threshold detector, an ...
Fusiek, Grzegorz +3 more
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The method of line protection construction with application of IEC 61850 standard on the example of Sepam 1000+ series microprocessor terminal [PDF]
Омский научный вестникThe paper raises a variant of architecture of realization of logical line protection on the basis of implementation of modern technologies. The idea of development and implementation of digital substations, the core of which is the application of IEC ...
D. A. Davydov +3 more
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Mechanism Analysis and Multiphysics Validation of Lightning Attenuation in Constrained Space
IEEE Access, 2022 The problem of resistance reduction has always been the key and difficult point of lightning protection. However, the problem of reducing the grounding resistance efficiently has not been solved. A method is introduced in this paper to solve this problem
Yang Lu +3 more
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Analysis and hardware testing of cell capacitor discharge currents during DC faults in half-bridge modular multilevel converters [PDF]
, 2015 This paper focuses on the behaviour of the cell capacitor discharge currents during DC faults in half-bridge modular multilevel converters. Active switches, not designed for fault conditions, are tripped to minimize discharge currents effect on the ...
Aboushady, A.A., Ahmed, K.H., Jovcic, D.
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The Impact of DG Access on Microgrid Current Protection
发电技术, 2019 When distributed generator (DG) is connected to the microgrid, the microgrid will change from single source system to multiple source system, which will change the power flow distribution and fault short-circuit current flow of the original network, the ...
Jing DING +4 more
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