Results 31 to 40 of about 16,712,159 (288)
Random PWM Technique Based Two-State Markov Chain for Permanent Magnet Synchronous Motor Control
Applied SciencesOn the basis of the space voltage vector pulse width modulation (SVPWM) technique, the random pulse width modulation (RPWM) technique, which can reduce harmonics, is investigated based on the vector control system of permanent magnet synchronous motor ...
Zhiqiang Wang +4 more
doaj +1 more source
IEEE Access, 2020 The problems of sub-synchronous oscillation and high-frequency oscillation related to inter-harmonics need to be solved in intermittent energy generation systems.
Jie Xie +7 more
doaj +1 more source
An improved single phase SPLL with DC and harmonics suppression
Energy Reports, 2023 This paper has proposed an improved single phase software phase lock loop (SPLL) with the ability of grid voltage DC and harmonics components suppression.
Long Xiao, Dongdong Chen
doaj +1 more source
DEVELOPMENT AND INVESTIGATION OF FILTRATION METHODS OF MANY-PHASE INDETERMINATE SIGNALS
Міжнародний науково-технічний журнал "Проблеми керування та інформатики", 2007 The pick out algorithms of the main harmonics from many-phase signals, which are subjected to influence of high-frequency noises and unknown constant displacements, are developed and investigated. The algorithms demand neither external information about
E.M. Potapenko +2 more
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IEEE Access, 2020 Line commutated converter (LCC) has been widely applied in hybrid high voltage direct current (HVDC) transmission system, where the modular multilevel converter (MMC) is applied as receiving end and may induce low order harmonics in DC-link voltage ...
He Huang +5 more
doaj +1 more source
High Frequency Limit for a Chain of Harmonic Oscillators with a Point Langevin Thermostat [PDF]
Archive for Rational Mechanics and Analysis, 2020 We consider an infinite chain of coupled harmonic oscillators with a Langevin thermostat at the origin. In the high frequency limit, we establish the reflection-transmission coefficients for the wave energy for the scattering of the thermostat. To our surprise, even though the thermostat fluctuations are time-dependent, the scattering does not couple ...
Tomasz Komorowski +3 more
openaire +3 more sources
Applied SciencesThe bridge arms and DC voltage of China’s Four-Terminal Flexible DC Transmission Project exhibit persistent high-frequency harmonics over the medium to long term, causing issues such as overheating losses and electromagnetic interference within the ...
Qing Huai +3 more
doaj +1 more source
Spatiotemporal evolution of radio wave pump-induced ionospheric phenomena near the fourth electron gyroharmonic [PDF]
, 2007 On 12 November 2001, the European Incoherent Scatter (EISCAT) high-frequency (HF) radio wave transmitter facility, operating in O-mode at 5.423 MHz with 550 MW effective radiated power, produced artificial optical rings which appeared immediately at ...
Kosch, Mike J. +3 more
core +4 more sources
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
dynoGP: Deep Gaussian Processes for Dynamic System Identification
International Journal of Adaptive Control and Signal Processing, EarlyView.This work introduces a novel class of deep models for system identification, dynamical deep Gaussian processes, which combine the strengths of data‐driven methods, such as those based on neural network architectures, with the ability to output a probability distribution for uncertainty representation.
Alessio Benavoli +3 more
wiley +1 more source