Results 31 to 40 of about 15,007 (312)
Investigation on gas generation characteristics in transformer oil under vibration
IET Generation, Transmission & Distribution, 2022 Operating experience has shown that characteristic gases can be found in oil‐immersed power transformers and high‐voltage reactors under strong vibration without discharge or thermal faults occurring.
Chong Guo +5 more
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IET Power Electronics, 2021 Conventional dc–dc boost converters have limited boosting capabilities, and the main switching device may suffer relatively high voltage stress and current stress. A novel transformerless dc‐dc boost converter is proposed in this paper.
Jiawei Zhao, Daolian Chen, Jiahui Jiang
doaj +1 more source
Simulation and Modeling of Detailed Load flow Analysis for the 400kVA and 132kVA Iraqi Grid
Journal of Engineering, 2023 A load flow program is developed using MATLAB and based on the Newton–Raphson method,which shows very fast and efficient rate of convergence as well as computationally the proposed method is very efficient and it requires less computer memory through ...
Ahmed Abdul Sahib Hashim
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Modular DC‐DC auto‐transformer: Topology, operation, and system design
IET Power Electronics, 2021 Here, a modular DC‐DC auto‐transformer is proposed with a developed scheme of two‐port submodules. The proposed two‐port submodule is composed of six switches and single capacitor, and it is featured with three general working states.
Yang Chen +4 more
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Proposed shunt rounding technique for large-scale security constrained loss minimization [PDF]
, 2010 The official published version can be obtained from the link below - Copyright @ 2010 IEEE.Optimal reactive power flow applications often model large numbers of discrete shunt devices as continuous variables, which are rounded to their nearest discrete ...
Hurlock, P +4 more
core +1 more source
SIDO coupled inductor‐based high voltage conversion ratio DC–DC converter with three operations
IET Power Electronics, 2021 Here, a single‐input, dual output (SIDO) coupled inductor‐based high voltage conversion ratio DC–DC converter is proposed. The proposed converter has the capability of operating as a SIDO converter in a way that the terminal of the input voltage source ...
Zahra Saadatizadeh +4 more
doaj +1 more source
Development of an integrated low-power RF partial discharge detector [PDF]
, 2009 This paper presents the results from integrating a low-power partial discharge detector with a wireless sensor node designed for operating as part of an IEEE 802.15.4 sensor network, and applying an on-line classifier capable of classifying partial ...
Baker, P.C. +3 more
core +1 more source
Power Converters and Power Quality [PDF]
, 2015 This paper discusses the subject of power quality for power converters. The first part gives an overview of most of the common disturbances and power quality issues in electrical networks for particle accelerators, and explains their consequences for ...
Kahle, K.
core +3 more sources
IEEE AccessThis article proposes an original contribution to assist in evaluating the condition of power transformers, the main asset of the electrical energy transmission sector. Due to constructive similarity, reactors are also evaluated. Data from the insulating
Gabriela S. Rema +3 more
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IET Generation, Transmission & Distribution, 2021 In this contribution, a new dissolved gas analysis (DGA) method combining key gases and ratio approaches for power transformer fault diagnostic is presented. It is based on studying subsets and uses the five main hydrocarbon gases including hydrogen (H2),
Arnaud Nanfak +4 more
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