Results 11 to 20 of about 967,927 (282)
Symmetry, 2022 DC–DC power electronics converters are widely used in many applications, such as renewable energy systems. The multistage-stacked boost architecture (MSBA) converter is a large voltage gain converter whose PWM scheme may reduce a percentage of the output voltage ripple, taking advantage of the symmetry of the voltage signals in capacitors (they are ...
Avelina Alejo-Reyes +3 more
openaire +2 more sources
Reference-Free Dynamic Voltage Scaler Based on Swapping Switched-Capacitors
Energies, 2019 This paper introduces a reference-free, scalable, and energy-efficient dynamic voltage scaler (DVS) that can be reconfigured for multiple outputs. The proposed DVS employs a novel swapping switched-capacitor (SSC) technique, which can generate target ...
A. N. Ragheb, Hyung Won Kim
doaj +2 more sources
Capacitor Voltage Ripple Suppression for Z-Source Wind Energy Conversion System
Energies, 2016 This paper proposes an improved pulse-width modulation (PWM) strategy to reduce the capacitor voltage ripple in Z-source wind energy conversion system. In order to make sure that Z-source capacitor voltage has symmetrical maximum and minimum amplitudes ...
Shoudao Huang, Yang Zhang, Zhikang Shuai
doaj +2 more sources
Energies, 2018 The interleaved buck converter with an extended duty cycle is analyzed in terms of unexplored parasitic switching states that diminish the switch utilization and its safety due to high-magnitude charging and discharging currents.
Peter Zajec, Mitja Nemec
doaj +3 more sources
Thermal and Electrical Analysis of Solid Aluminium Capacitors
Active and Passive Electronic Components, 1987 The thermal properties of electronic components partly determine the reliability of electronic equipment. For electrolytic capacitors, they also set the limits for the ripple current and voltage values.
E. H.L.J. Dekker, C. J.M. Lasance
doaj +2 more sources
Sub-Module Capacitor Voltage Ripple Suppression in MMDTC-Based PET Using Three-Port Active Bridge
EnergiesFor power electronic transformer (PET) based Modular Multilevel DC-Link Based T-type Converters (MMDTC) with Double Active Bridges (DABs) (namely DABs-based MMDTC-PET), the sub-module capacitor voltages exhibit relatively large ripples.
Xiangzheng Cui +5 more
doaj +2 more sources
Analysis and Calculation of DC-link Ripple for the Inverter in Electric Vehicle
Kongzhi Yu Xinxi Jishu, 2015 The performance of electric drive system for electric vehicle largely depends on the characteristics of DC-link capacitor in inverter, especially the abilities to absorb ripple current and ripple voltage of DC-link.
WU Chundong +3 more
doaj +2 more sources
Energies, 2021 The modular multilevel converter is capable to reach high-voltage levels with high flexibility, high reliability, and high power quality as it became the standard solution for high-power high-voltage applications that operate with fixed frequency ...
Gustavo Gontijo +3 more
doaj +1 more source
IEEE Access, 2020 In this paper, an optimized space-vector modulation (SVM) to reduce DC-link ripple current in three-level inverters is presented. Various types of capacitors can be utilized to balance the voltage in the DC-link of voltage source inverters.
Sang-Won An, Seok-Min Kim, Kyo-Beum Lee
doaj +1 more source
Comparison between flying capacitor and modular multilevel inverter [PDF]
, 2009 The paper describes the operational principle of flying capacitor and modular multilevel inverters. The detailed discussions of dc link capacitors voltage balancing methods for both inverters are given in order to enable fair comparison. The causes of dc
Anaya-Lara, O. +5 more
core +3 more sources