Results 11 to 20 of about 243,917 (303)

The Necessity of Application of Frequency Electric Drives for Irrigation Systems [PDF]

open access: yesE3S Web of Conferences, 2021
The article substantiates the possibility of using frequency drives in agricultural production, shows promising areas of their application, shows the positive qualities of frequency drives, which make it possible to confidently compete with gear drives ...
Kaidar A.B.   +4 more
doaj   +1 more source

Analysis of high-frequency interference characteristics of UHVDC converters

open access: yesThe Journal of Engineering, 2018
The converter is the main component of the converter station and the main noise source of the PLC interference. The accurate modelling of the high-frequency characteristics of the converter is the foundation for the design of the ± 1100 kV UHVDC PLC ...
Chaonan Ying, Zheng Xu, Chenxi Luo
doaj   +1 more source

State feedback linearized model for phase-controlled series-parallel resonant converters [PDF]

open access: yes, 2011
This paper proposes a linearized large-signal state space model for phase-controlled series-parallel resonant converter. The model combines multiple-frequency and average state-space modeling techniques to generate a universal model with DC state ...
Aboushady, A.A.   +3 more
core   +2 more sources

Resonant Frequency Tracking Scheme for LLC Converter Based on Large and Small Signal Combined Model

open access: yesIEEE Access, 2023
To achieve optimal system performance, it’s recommended to operate an LLC resonant converter at its resonant frequency. However, in mass production, the resonant parameters of different products can deviate significantly.
Runhui He   +6 more
doaj   +1 more source

Development trend of mine frequency converter

open access: yesGong-kuang zidonghua, 2017
Main problems of mine-used frequency converter were analyzed that input of research and development is insufficient, value exploration is inadequate, pollution to power net is heavy, and use and maintenance is relatively difficult.
ZHU Yongping, XU Xiaojian
doaj   +1 more source

Per-Core DVFS with Switched-Capacitor Converters for Energy Efficiency in Manycore Processors [PDF]

open access: yes, 2015
Integrating multiple power converters on-chip improves energy efficiency of manycore architectures. Switched-capacitor (SC) dc-dc converters are compatible with conventional CMOS processes, but traditional implementations suffer from limited conversion ...
Alon, E   +6 more
core   +1 more source

Design of emergency speed regulation system of coal mine moter

open access: yesGong-kuang zidonghua, 2016
In view of problem that it is difficult to recover normal operation in a short time when frequency converter fails, emergency speed regulation system of coal mine moter was designed.
RUAN Wentao
doaj   +1 more source

Improved Resonant Converter for Dynamic Wireless Power Transfer Employing a Floating-Frequency Switching Algorithm and an Optimized Coil Shape

open access: yesIEEE Access, 2022
This paper offers a new EF-class converter for dynamic wireless power transfer application. The proposed high-frequency converter employs a floating-frequency switching algorithm to control the converter in a continuous frequency range, eliminate the ...
Shahriar Sarmast Ghohfarokhi   +3 more
doaj   +1 more source

Development of a 1 kA, 50 Hz Superconducting Converter [PDF]

open access: yes, 1995
A single-phase, thermally switched superconducting power converter operating at mains frequency is being developed and tested by the authors. Typical design values of the device are: input voltage of 220 V; input current of 7 A; output voltage of 1 V ...
Fedorovsky, Michael A.   +3 more
core   +2 more sources

Analysis of High Frequency Resonance and Suppression in Yu to E VSC-HVDC Project Connected to Power Grid

open access: yes发电技术, 2022
In view of the high frequency resonance generated by Yu side connected to the AC grid in the Yu to E voltage source converter based high voltage direct current transmission (VSC-HVDC) south channel project, the characteristics of VSC-HVDC converter ...
YANG Wankai, WANG Xingguo, WANG Shuyang
doaj   +1 more source

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