Results 51 to 60 of about 10,045 (225)

Study on the Time–Frequency Characteristics of Excitation Inrush Current and Its Induced Converter Transformer Vibration

open access: yesApplied Sciences
An inrush current will be generated inside a converter transformer during no-load switching on or off. The inrush current will cause severe vibration of the winding and other components of the converter transformer.
Jinzhuang Lv   +7 more
doaj   +1 more source

Improved Capacitor Voltage Feedforward for Three-Phase LCL-Type Grid-Connected Converter to Suppress Start-Up Inrush Current

open access: yesEnergies, 2017
Three-phase active damping LCL-type grid-connected converters are usually used in distributed power generation systems. However, serious inrush current will be aroused when the grid-connected converter starts, especially in rectifier mode, if no ...
Shiying Zhou   +4 more
doaj   +1 more source

The Analogia Entis for Reformed Theology: Retrieving Calvin's Implicit Metaphysics

open access: yesModern Theology, EarlyView.
Abstract The famous controversy between Emil Brunner and Karl Barth which led to Barth's ‘No!’ was driven by disagreements over how to read John Calvin: Barth and Brunner never agreed on whether Calvin had a doctrine of the analogy of being. This article rekindles the debate.
Silvianne Aspray
wiley   +1 more source

Three-Phase Transformer Inrush Current Reduction Strategy Based on Prefluxing and Controlled Switching

open access: yesIEEE Access, 2021
Inrush current with high amplitude is generated when the transformer is energized. On the one hand, it will have a negative impact on the safety of the transformer itself, and even cause the relay protection to malfunction.
Yuanlin Pan   +5 more
doaj   +1 more source

A Forced Union: Exploring the Consequences of India's Removal of Jammu and Kashmir's Special Status

open access: yesNations and Nationalism, EarlyView.
ABSTRACT This article adds to academic literature interested in two core questions: What happens to residents as a result of an annexation? And how do aggressor states maintain control over an annexed territory where there is a history of insurgency and mobilization for independence?
Serena Hussain
wiley   +1 more source

Analyzing kinetics of deformation of boundary rocks of mine workings [PDF]

open access: yes, 2018
Purpose is to analyze nature of rock deformation and to estimate experimentally state of mine workings being supported under the conditions of areas disturbed by coal mining. Methods. The studies involved field instrumental observations within measuring
Nehrii, S   +3 more
core   +1 more source

A Comprehensive Review of Intelligent Fault Diagnosis and Resilient Fault‐Tolerant Control in the Design of Modern Modular Multilevel Converters

open access: yesEngineering Reports, Volume 8, Issue 5, May 2026.
This review evaluates advanced intelligent fault diagnosis and resilient fault‐tolerant control strategies for modular multilevel converters (MMCs). It highlights how integrating machine learning with robust control architectures enhances reliability and operational continuity, providing a roadmap for developing more resilient, self‐healing power ...
Muhammad Haris Saleem   +3 more
wiley   +1 more source

Magnetically coupled emission regulator [PDF]

open access: yes, 1969
Magnetic coupling between input and power handling circuits isolates high voltage. A feedback regulator samples the ion source bias current and provides deviation signals to a magnetic amplifier pulse modulator.

core   +1 more source

Large‐Scale Hydrogen Storage: Surface and Subsurface Challenges

open access: yesChemBioEng Reviews, Volume 13, Issue 2, April 2026.
This review examines underground hydrogen storage with emphasis on the interaction between surface facilities and subsurface reservoirs. Variable renewable hydrogen requires compression, buffering, and purification before injection, while subsurface processes influence wellhead pressure, temperature, and composition.
Mostafa Montazeri   +3 more
wiley   +1 more source

Contribution of inrush current to mechanical failure of power transformers windings

open access: yesHigh Voltage, 2019
This work presents a study regarding the contribution of inrush current to the occurrence of mechanical fatigue in windings of a power transformer and, consequently, the impact of that phenomenon on the equipment's lifetime. In order to perform the study,
Rafael M.R. Barros   +5 more
doaj   +1 more source

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