Results 91 to 100 of about 1,230,070 (216)

A New Generalized Discontinuous-PWM Strategy for Active Power Filters

, 2007
Classical discontinuous pulse width modulations (DPWM's) may not be efficiently applied in active power filters, because it is hard to predict the peak values of the inverter current, and consequently it is difficult to calculate the position of the ...
L. Asiminoaei, Asiminoaei, Lucian, F. Blaabjerg, P. Rodriguez, Rodriguez, Pedro, Blaabjerg, Frede; id_orcid   +5 more
core   +1 more source

Design of Pulsewidth-Modulation Based Sliding Mode Controllers for Power Converters in Discontinuous Conduction Mode

, 2008
— This paper presents an approach of designing fixed-frequency pulsewidth-modulation based sliding mode controllers for power converters operating in the discontinuous conduction mode. The basic concept and design issues are discussed.
Y. M. Lai, Siew-chong Tan, Chi K. Tse, Luis Martinez-salamero, Angel Cid-pastor   +4 more
core  

A randomized carrier-based discontinuous pulse width modulation strategy for neutral point clamped three-level inverter

This article introduces a novel approach called randomized carrier-based discontinuous pulse width modulation (RCDPWM) to address the challenge of mitigating both low-order and high-order harmonics concentrated at the switching frequency and its integer ...
Aibeche, Abderrezak, Bouzida, Ahcene, Boudouda, Aimad, Boudjerda, Nasserdine   +3 more
core   +1 more source

A Novel High Power Factor and Soft Switching SAB-SWISS Rectifier With High-Low-High-Low Modulation and Hybrid Frequency Control

IEEE Access
A novel SWISS rectifier based on single active bridge converter (SAB-SR) is proposed. The high-low-high-low (HLHL) voltage waveform modulation to realize soft-switching for the power switches and the hybrid frequency control scheme to achieve high power ...
Bo Zeng, Ziwen Yang, Shi Yan, Lingjuan Tan, Shaojun Xie   +4 more
doaj   +1 more source

A novel pulsewidth modulation to operate a bidirectional two-stage dc-ac converter with high-frequency isolation in discontinuous conduction mode for photovoltaic applications Keywords

, 2020
This paper presents a novel modulation for a two-stage dc-ac power converter with high-frequency isolation installed in a photovoltaic stand-alone system.

core  

Flux-Weakening Strategies for a Five-Phase PM Synchronous Machine [PDF]

, 2011
In order to get a low cost mild hybrid system, a global objective is to keep the actual thermal engine architecture. As consequence, the current clawpole synchronous automotive generator must be replaced by a new more powerful electrical machine but with
KESTELYN, Xavier, LU, Li, SEMAIL, Eric, KOBYLANSKI, Luc   +3 more
core  

FPGA Based Optimized Discontinuous SVPWM Algorithm for Three Phase VSI in AC Drives

, 2013
The discontinuous space vector pulse width modulation (SVPWM) has well-known that can reduce switching losses. By simplifying the thermal management issues, the discontinuous SVPWM can potentially reduce the inverter size and cost.
Nik Idris, Nik Rumzi, Sutikno, Tole, Jopri, Mohd Hatta, Jidin , Auzani, Jidin, Auzani   +4 more
core  

Research on a Phase-Shift-Based Discontinuous PWM Method for 24V Onboard Thermally Limited Micro Voltage Source Inverters. [PDF]

Micromachines (Basel)
Wang S, Xia C.
europepmc   +1 more source

Filling-in of the foveal rod scotoma and confidence preference for central vision under mesopic viewing conditions. [PDF]

Vision Res
Men H, Schütz AC.
europepmc   +1 more source

High-Q multimodal guided-surface lattice resonances in index-discontinuous environments. [PDF]

Nat Commun
Huang S, Yao K, Wang H, Ding X, Li F, Huang C, Huang W, Zhao X, Zheng Y, Pan Y.   +9 more
europepmc   +1 more source