Results 61 to 70 of about 10,045 (225)

Inrush Current Control of High Power Density DC–DC Converter

open access: yesEnergies, 2020
This paper presents a complete mathematical design of the main components of 2 kW, 54 direct current (DC)–DC converter stage, which can be used as the second stage of the two stages of alternating current (AC)–DC telecom power supply.
Ahmed H. Okilly   +2 more
doaj   +1 more source

Design Analysis of a Seven‐Level Active Neutral Point Clamped (ANPC) Inverter Based on Switched Technique

open access: yesRadio Science, Volume 61, Issue 4, April 2026.
Abstract A novel switch‐based Active‐Neutral‐Clamped (ANPC) inverter for low DC‐link voltage is presented in this paper. The proposed ANPC topology minimizes switches and achieves 1.5 times better voltage gain than standard inverters. The main objective of this design is to reduce active switches in the inverter to increase system efficiency.
Shujaat Ali   +5 more
wiley   +1 more source

Deep Learning-Based Algorithm for Internal Fault Detection of Power Transformers during Inrush Current at Distribution Substations

open access: yesEnergies
The reliability and stability of differential protection in power transformers could be threatened by several types of inferences, including magnetizing inrush currents, current transformer saturation, and overexcitation from external faults.
Sopheap Key, Gyu-Won Son, Soon-Ryul Nam
doaj   +1 more source

Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems

open access: yesEnergies, 2016
Critical load applications always rely on UPS systems to uphold continuous power during abnormal grid conditions. In case of any power disruption, an offline UPS system starts powering the load to avoid blackout.
Syed Sabir Hussain Bukhari   +2 more
doaj   +1 more source

Evaluation of the EMC environment generated by a static var compensator [PDF]

open access: yes, 2009
Describes an evaluation of the EMC environment generated by a static var ...
Li, Q., Siew, W.H., Wang, W., Zhang, L.
core  

Mechanisms of Suspended Microparticle Clogging in Constricted Channels: Insights From a Lattice Boltzmann‐Discrete Element Simulation

open access: yesWater Resources Research, Volume 62, Issue 4, April 2026.
Abstract The migration‐clogging‐sealing process of microparticle suspensions in constricted channels is highly relevant to geotechnical, hydraulic, and environmental engineering. In this study, a coupled lattice Boltzmann‐discrete element method is employed, incorporating dense‐particle corrections into the classical partially saturated method and ...
Siyuan Wang   +7 more
wiley   +1 more source

Histogram and cosine similarity based magnetizing inrush current identification for main transformer in photovoltaic power station

open access: yesDiance yu yibiao
The normal operation of the main transformer in the photovoltaic power station is the basis for the power generation output, however, the magnetizing inrush current may lead the differential protection of the transformer to malfunction.
LUAN Yunfei   +4 more
doaj   +1 more source

Simulation study and experimental results for detection and classification of the transient capacitor inrush current using discrete wavelet transform and artificial intelligence

open access: yesOpen Physics, 2018
This paper describes the combination of discrete wavelet transforms (DWT) and artificial intelligence (AI), which are efficient techniques to identify the type of inrush current, analyze the origin and possible cause on the capacitor bank switching.
Patcharoen Theerasak   +3 more
doaj   +1 more source

Mechanism Analysis of Sympathetic Inrush in Traction Network Cascaded Transformers Based on Flux-Current Circuit Model

open access: yesEnergies, 2019
When electric multiple units (EMU) pass the neutral zone, the traction transformer may generate sympathetic inrush, which will cause a malfunction in the transformer differential protection.
Zhiyong Li   +3 more
doaj   +1 more source

Characteristics and operational control strategies of grid‐forming long‐/short‐duration energy storage systems: A review

open access: yesEnergy Conversion and Economics, Volume 7, Issue 2, Page 127-148, April 2026.
Abstract Energy storage systems (ESSs) are increasingly critical for maintaining the stability and flexibility in power systems with rising renewable penetration. Grid‐forming (GFM) ESSs have emerged as a pivotal technology, capable of providing essential voltage and frequency support by establishing grid references in converter‐dominated systems. This
Rui Wang   +4 more
wiley   +1 more source

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