Results 1 to 10 of about 266,050 (343)

Calculation and Analysis of Rotor Thermal Static Field for Inter-Turn Short Circuit of Large Hydro-Generator Excitation Winding

open access: yesEnergies, 2019
Rotor winding inter-turn short circuit a common fault in hydro-generators. This fault would change the temperature, stress, and other thermal fields of a rotor and threaten the safe operation of the generator.
Junqing Li, Luo Wang
doaj   +2 more sources

A Walsh-Based Arbitrary Waveform Generator for 5G Applications in 28nm FD-SOI CMOS Technology

open access: yesIEEE Access, 2023
This paper presents the first Arbitrary Waveform Generator (AWG) based on Walsh’s theory for wideband radio frequency (RF) conversion. The architecture is dedicated to 5G-FR1 applications (sub-6GHz) to perform a direct and large bandwidth ...
Pierre Ferrer   +3 more
doaj   +2 more sources

An improved design for virtual synchronous generator control loop based on synergy theory

open access: yesAIP Advances
Virtual synchronous generator (VSG) technology has achieved some results in distributed generation networks and enhanced system stability. For problems that may occur in the system due to ignoring parameter linkages, this paper designs a synergistic ...
Fangfang Wang   +3 more
doaj   +2 more sources

Suppressing nonperturbative gauge errors in the thermodynamic limit using local pseudogenerators [PDF]

open access: yesCommunications Physics
With recent progress in quantum simulations of lattice-gauge theories, it is becoming a pressing question how to reliably protect the gauge symmetry that defines such models.
Maarten Van Damme   +4 more
doaj   +2 more sources

Circuit Complexity From Supersymmetric Quantum Field Theory With Morse Function [PDF]

open access: yesSymmetry, 2021
Computation of circuit complexity has gained much attention in the theoretical physics community in recent times, to gain insights into the chaotic features and random fluctuations of fields in the quantum regime.
S. Choudhury   +2 more
semanticscholar   +1 more source

Local Atmospheric Electric Circuit Model Using Electrostatic Pickups on a 375kV Transmission Line [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2022
: The global atmospheric electric circuit is based on a model of electrical connection between the earth and the ionosphere (waveguide), capable of representing the flow of electric current in this waveguide.
Armando Heilmann   +3 more
doaj   +1 more source

Circuit complexity for coherent-thermal states in bosonic string theory

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In this paper, we first construct thermofield double states for bosonic string theory in the light-cone gauge. We then obtain a coherent-thermal string state and a thermal-coherent string state.
Arshid Shabir   +5 more
doaj   +1 more source

Research of the microwave generator and antenna emitters for hyperthermia of oncological diseases [PDF]

open access: yesОмский научный вестник, 2022
Purpose. Currently (2022), the existing hyperthermia installations are large. As a result, hyperthermia treatment is carried out only where this equipment is located. In this paper, a study is conducted aimed at creating a compact hyperthermia device.
V. V. Fedyanin
doaj   +1 more source

RESEARCH OF A SQUIRREL-CAGE INDUCTION GENERATOR FOR RENEWABLE ENERGY WITH NON-STATIONARY CAPACITOR EXCITATION

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2020
The relevance. The share of electricity generated by installations based on renewable energy is constantly growing, and therefore the need for the development of power supply systems and automatic control of electrical machines underlying wind and hydro ...
Dmitriy S. Bunkov   +9 more
doaj   +1 more source

Electromechanical Characteristics Analysis under DSISC Fault in Synchronous Generators

open access: yesMachines, 2022
This paper studies the electromechanical characteristics of synchronous generators under dynamic stator interturn short circuit (DSISC). First, the air gap magnetic flux density (MFD) of the generator under normal and DSISC fault was obtained.
Yu-Ling He   +7 more
doaj   +1 more source

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