Results 11 to 20 of about 183,779 (306)

Optimized Space-Vector Modulation to Reduce Neutral Point Current for Extending Capacitor Lifetime in Three-Level Inverters

open access: yesIEEE 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

Low‐ripple high‐efficiency AC‐DC rectifier with auxiliary compensator for hydrogen production

open access: yesIET Power Electronics, 2023
In hydrogen production, AC‐DC rectifiers must provide a high current and low voltage to the production load. This paper focuses on the efficient performance and elimination of the output ripple in these AC‐DC rectifiers.
Li Zhang   +5 more
doaj   +1 more source

A Comparative Study on the Influence of DC/DC-Converter Induced High Frequency Current Ripple on Lithium-Ion Batteries [PDF]

open access: yes, 2019
Modern battery energy systems are key enablers of the conversion of our energy and mobility sector towards renewability. Most of the time, their batteries are connected to power electronics that induce high frequency current ripple on the batteries that ...
Korth Pereira Ferraz, Pablo   +1 more
core   +1 more source

Improved current-regulated delta modulator for reducing switching frequency and low-frequency current error in permanent magnet brushless AC drives [PDF]

open access: yes, 2005
The conventional current-regulated delta modulator (CRDM) results in a high current ripple and a high switching frequency at low rotational speeds, and in low-frequency current harmonics, including a fundamental current error, at high rotational speeds ...
Howe, D., Wipasuramonton, P., Zhu, Z.Q.
core   +1 more source

Electric vehicle battery performance investigation based on real world current harmonics [PDF]

open access: yes, 2020
Electric vehicle (EV) powertrains consist of power electronic components as well as electric machines to manage the energy flow between different powertrain subsystems and to deliver the necessary torque and power requirements at the wheels.
Amamra, Sid-Ali   +4 more
core   +1 more source

Tradeoffs between AC power quality and DC bus ripple for 3-phase 3-wire inverter-connected devices within microgrids [PDF]

open access: yes, 2011
Visions of future power systems contain high penetrations of inverters which are used to convert power from dc (direct current) to ac (alternating current) or vice versa.
Burt, Graeme M.   +2 more
core   +1 more source

Impact of Power Converter Current Ripple on the Degradation of PEM Electrolyzer Performances

open access: yesMembranes, 2022
In this study, an endurance test of 3000 h was conducted on four equivalent proton exchange membrane (PEM) electrolyzers to identify and quantify the impact of an electric ripple current on their durability.
François Parache   +8 more
doaj   +1 more source

Design and Development of Low Torque Ripple Variable-Speed Drive System With Six-Phase Switched Reluctance Motors [PDF]

open access: yes, 2018
Switched reluctance motor (SRM) drives conventionally use current control techniques at low speed and voltage control techniques at high speed. However, these conventional methods usually fail to restrain the torque ripple, which is normally associated ...
Deng, Xu   +3 more
core   +2 more sources

An Evolutionary Algorithm-Based PWM Strategy for a Hybrid Power Converter

open access: yesMathematics, 2020
In the past years, the interest in direct current to direct current converters has increased because of their application in renewable energy systems. Consequently, the research community is working on improving its efficiency in providing the required ...
Alma Rodríguez   +4 more
doaj   +1 more source

Advanced Control Method of 5-Phase Dual Concentrated Winding PMSM for Inverter Integrated In-Wheel Motor

open access: yesWorld Electric Vehicle Journal, 2021
This paper presents some techniques for driving novel 5 phase dual winding PMSM (Permanent Magnet Synchronous Motor) for the in-wheel motor. The motor realizes winding change over characteristics that can expand driving area from high-torque mode to high-
Kan Akatsu, Keita Fukuda
doaj   +1 more source

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