Results 21 to 30 of about 6,203,020 (209)

Asynchronous generator replacement scheme with internal capacitive reactive power compensation

open access: yesMachinery & Energetics, 2023
The relevance of using compensated induction machines in the generator mode of autonomous power supply systems is determined by their ability to provide a stable and reliable power supply even in the absence of an external grid.
R. Chuenko   +3 more
doaj   +1 more source

A New Effective Shift Rule for M-Sequences

open access: yesIEEE Access, 2020
Pseudo-random sequences have been extensively used in design theory, coding theory, and cryptographic system. Pseudo-random sequences generator based on feedback shift register is an important component of a symmetric crypto-system, which is circuit ...
Xiaofang Wang   +2 more
doaj   +1 more source

Application of chaos and extension theory to fault diagnosis of three-phase synchronous generators

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2020
This study applied an extension algorithm combined with the Chaos Theory to the fault diagnosis of the three-phase synchronous generator. First, the three-phase synchronous generator is classified, including normal, carbon brush fault, three-phase ...
Shiue Der Lu   +2 more
doaj   +1 more source

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   +1 more source

Employment of electric torch discharge and a steam-gas generator in surface schooping of materials [PDF]

open access: yesРадиофизика и электроника, 2020
Subject and Purpose. The present paper is concerned with the method of surface schooping of materials using high-frequency torch discharge (HFTD) and glycerol vapor as a base for dissolving activating additives to the working gas. To approach the problem,
A.O. Puzanov
doaj   +1 more source

Voltage-Mode Four-Phase Sinusoidal Generator and Its Useful Extensions

open access: yesActive and Passive Electronic Components, 2013
This paper introduces a new voltage-mode second-order sinusoidal generator circuit with four active elements and six passive elements, including grounded capacitors. The frequency and condition of oscillation can be independently controlled.
Sudhanshu Maheshwari
doaj   +1 more source

Finite element assisted method of estimating equivalent circuit parameters for a superconducting synchronous generator with a coreless rotor

open access: yes, 2008
The paper outlines methods developed to obtain circuit parameters of a superconducting synchronous generator with a coreless rotor. The need for full 3D finite element modelling is emphasised and appropriate techniques devised to estimate relevant ...
Lukasik, B.   +7 more
core   +2 more sources

VOLT-AMPERE CHARACTERISTIC AND INDUCED CURRENT IN THE EXTERNAL CIRCUIT OF AVALANCHE-GENERATOR DIODES ON THE BASIS OF THE BACK DISPLACED ABRUPT P–N-JUNCTIONS [PDF]

open access: yesРадиофизика и электроника, 2015
Creation of modern solid-state microwave power sources is based on the application of active elements with expanded functionality. The reverse-biased p–n-junctions with DC voltage are active elements of diodes generators. Avalanche-generator diodes (AGD)
K. A. Lukin, P. P. Maksymov
doaj   +1 more source

Theoretical and experimental research on control strategy of maximum power point tracking for monolayer thermoelectric generator considering the degree of disturbance

open access: yesEnergy Reports, 2022
In this paper, the simulation model of thermoelectric generator and maximum power point tracking control (MPPT) DC/DC circuit is set up from the theory and mathematical formula. On this basis, this paper completes the maximum power point tracking control
Xinyu Liu   +7 more
doaj   +1 more source

Research Related Electromechanical Processes in an Asynchronous Traction Motor - Asynchronous Generator with Common Shaft Based on Field Model

open access: yesAdvances in Electrical and Electronic Engineering, 2015
Creating energy efficiency traction induction motors with frequency control for hybrid drive vehicles defines practical interest for new methods of testing and simulation.
Yury Kazakov, Ilya Palilov
doaj   +1 more source

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