Results 11 to 20 of about 6,600,824 (345)

± 180° Discontinuous PWM for Single-Phase PWM Converter of High-Speed Railway Propulsion System

open access: yesEnergies, 2020
As high-capacity alternating current/direct current (ac/dc) power conversion systems, single-phase pulse-width modulation (PWM) converters used in high-speed railway propulsion systems adopt high-voltage Insulated-Gate Bipolar Transistors (IGBTs) as ...
Min-Sup Song, In-Ho Cho, Jae-Bum Lee
doaj   +1 more source

A Low-Loss 1.2 kV SiC MOSFET with Improved UIS Performance

open access: yesMicromachines, 2023
In this article, a 1.2-kV-rated double-trench 4H-SiC MOSFET with an integrated low-barrier diode (DT-LBDMOS) is proposed which eliminates the bipolar degradation of the body diode and reduces switching loss while increasing avalanche stability.
Lijuan Wu   +5 more
doaj   +1 more source

Research on strategy of load-side resonant soft-switching inverter based on interconnection and damping assignment-passivity based control [PDF]

open access: yesArchives of Electrical Engineering
Soft-switching technologies can effectively solve the problem of switching losses caused by increasing switching frequency of grid-connected inverters.
Yajing Zhang   +3 more
doaj   +1 more source

Triac Based Novel Single Phase Step-Down Cycloconverter with Reduced THDs for Variable Speed Applications

open access: yesApplied Sciences, 2021
In variable speed applications, the cycloconverter-based AC to AC power conversion technique has gained more attention among researchers and academics than the traditional rectifier-inverter-based AC to AC power conversion process.
Tariqul Islam   +3 more
doaj   +1 more source

Investigation of efficient multilevel inverter for photovoltaic energy system and electric vehicle applications

open access: yesElectrical engineering & Electromechanics, 2023
Introduction. This research presents a simple single-phase pulse-width modulated 7-level inverter topology for renewable system which allows home-grid applications with electric vehicle charging.
E. Parimalasundar   +3 more
doaj   +1 more source

Frequency-domain-based complete loss model for 10 kV/1 MW solid-state transformer

open access: yesThe Journal of Engineering, 2019
This study proposes a frequency-domain-based loss model for dual active bridge (DAB) inside modular multi-level cascaded solid-state transformer (SST). Previously, the loss model is mainly derived in the time domain and requires enormous modelling effort.
Tao Liu   +6 more
doaj   +1 more source

A Five-Level Switched-Capacitor Based Transformerless Inverter With Boosting Capability for Grid-Tied PV Applications

open access: yesIEEE Access, 2023
Transformerless grid-connected inverters have attained a lot of research interest in renewable energy interface applications, due to certain promising properties like greater efficiency, light weight, affordable price, and tolerable power density.
Sudipto Mondal   +3 more
doaj   +1 more source

Semiconductor loss calculation of DC–DC modular multilevel converter for HVDC interconnections

open access: yesHigh Voltage, 2018
DC–DC modular multilevel converter (DC–DC MMC) is an attractive candidate for high-voltage DC (HVDC) interconnections since it can provide the required voltage matching, galvanic isolation and flexible power control abilities.
Shanshan Zhao, Yu Chen, Li Peng
doaj   +1 more source

IGBT Power Module Design for Suppressing Gate Voltage Spike at Digital Gate Control

open access: yesIEEE Access, 2023
This paper clarifies the effect of gate inductance $L_{g}$ inside IGBT modules on gate voltage spikes when a digital gate driver is employed. Three IGBT modules with different $L_{g}$ were fabricated to implement double pulse tests by conventional ...
Zaiqi Lou   +5 more
doaj   +1 more source

A Discontinuous Modulation Method with Variable Clamping Interval Width of the Modular Multilevel Converter

open access: yesWorld Electric Vehicle Journal, 2022
The modular multilevel converter (MMC) has been widely used because of the advantages of easier expansion, lower harmonic distortion and higher output voltage level.
Xin Gu   +3 more
doaj   +1 more source

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