Results 121 to 130 of about 56,742 (234)
Harmonic Characteristics of Variable Frequency System Based on PWM Rectifier
Kongzhi Yu Xinxi Jishu, 2017 In order to solve the problem of harmonic harm of PWM rectifier variable frequency system in power transmission and distribution system, it introduced the basic principle of PWM rectifier control and SPWM modulation according to the main circuit topology
MING Kaiyun
doaj
High Voltage, EarlyView.ABSTRACT As one of the important links in energy transition and global energy interconnection, electric vehicles (EVs) are becoming increasingly major research topics in the field of energy. Partial discharge (PD) identification under repetitive impulsive voltages plays a pivotal role in evaluating the health of electric vehicle (EV) motor insulation ...
Li Wang +7 more
wiley +1 more source
Transistor clamped five level inverter using non-inverting double reference single carrier PWM technique for photovoltaic applications [PDF]
This treatise deals with transistor clamped five level inverter Using Non-Inverting Double Reference Single Carrier PWM (NIDRSC PWM) Technique. Conventional or two level inverter have drawbacks like i) Requirement of fast switching devices ii) Very high ...
Bhaskar, M.S. +4 more
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Neural correlates of pure apathy in multiple sclerosis: An exploratory neuroimaging study
Journal of Neuropsychology, EarlyView.Abstract Pure apathy is relatively common in people with Multiple Sclerosis (PwMS), but its neural mechanisms remain unexplored. Therefore, we investigated the neural correlates of pure apathy in PwMS, differentiating it from depression. Sixty‐two PwMS underwent neuropsychological assessments and Magnetic Resonance Imaging scans.
Valentina Torchia +7 more
wiley +1 more source
Journal of Neuropsychology, EarlyView.Abstract Prior studies in multiple sclerosis (MS) suggest preserved recognition of positive emotions despite deficits for negative ones, but this dissociation may reflect methodological limitations (valence‐asymmetry: positive‐valence being limited to happiness/joy in basic‐emotion sets). This study tested whether emotion–recognition deficits in MS are
Laurent Zikos +6 more
wiley +1 more source
Lifetime-Based Discontinuous PWM for Cascaded H-Bridge Converters
IEEE AccessThe cascaded H-bridge (CHB) is an attractive converter topology because it can provide voltage and power scalability. However, due to the difference in electrical and thermal characteristics of power devices, the CHB can be composed of cells with unequal
Anas Ibrahim +5 more
doaj +1 more source
Journal of Sleep Research, EarlyView.ABSTRACT Multiple sclerosis is frequently associated with sleep disorders. This study aimed to evaluate subjective and objective sleep parameters in de novo relapsing–remitting multiple sclerosis patients compared to healthy controls and to explore correlations with cerebrospinal fluid cytokines.
A. Romigi +10 more
wiley +1 more source
IET Power ElectronicsModulation strategy plays a key role in the operation of modular multilevel converters (MMC). Although many studies have been carried out on its optimization in MMC, the limitations of hardware implementation are seldom considered.
Zichen Wang +5 more
doaj +1 more source
Comparison of Simple Self-Oscillating PWM Modulators
, 2016 Switch-mode power amplifiers has become the conventional choice for audio applications due to their superior efficiency and excellent audio performance. These amplifiers rely on high frequency modulation of the audio input. Conventional modulators use a fixed high frequency for modulation.
Dahl, Nicolai J. +3 more
openaire +1 more source
AER and dynamic systems co-simulation over Simulink with Xilinx System Generator [PDF]
, 2008 Address-Event Representation (AER) is a neuromorphic communication protocol for transferring information of spiking neurons implemented into VLSI chips.
Civit Balcells, Antón +5 more
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