Results 11 to 20 of about 5,619 (226)

VSG Control for Cascaded Three-Phase Bridge Based Battery Inverter

open access: yesWorld Electric Vehicle Journal, 2023
With the increasing number of new energy sources connected to the grid, the unbalanced output of three-phase grid-connected inverters and the lack of no inertia and damping characteristics in the traditional microgrid control system will seriously affect
Xiaojing Qi, Jianyong Zheng
doaj   +1 more source

Digital Distortion-Free PWM and Click Modulation

open access: yesIEEE Transactions on Circuits and Systems II: Express Briefs, 2018
This brief exhibits the relationship between the analog click modulator, which produces a binary pulse width modulation (PWM) signal with separated baseband, and recently reported fully digital, baseband distortion-free PWM algorithms (BBDFPWM). We show that BBDFPWM not only is a discrete-time version of the click modulator but also can operate in real-
Fernando Chierchie, Eduardo E. Paolini
openaire   +3 more sources

Proposal of Hybrid Discontinuous PWM Technique for Five-Phase Inverters under Open-Phase Fault Operation

open access: yesMachines, 2023
One of the most common issues in inverters are open-circuit faults (OPF). In this scenario, a proper fault-tolerant technique must be used to improve the motor performance.
Markel Fernandez   +4 more
doaj   +1 more source

Comparative analysis of principal modulation techniques for modular multilevel converter and a modified reduced switching frequency algorithm for nearest level pulse width modulation

open access: yesElectrical engineering & Electromechanics
Introduction. The Modular Multilevel Converter (MMC) is an advanced topology widely used in medium and high-power applications, offering significant advantages over other multilevel converters, including high efficiency and superior output waveform ...
M. Benboukous   +4 more
doaj   +1 more source

Carrier-Based PWM Strategy of Three-Level Neutral-Point-Clamped Inverter With Optimal Extension Mode

open access: yesIEEE Open Journal of Power Electronics
Neutral point voltage ripple is the main technical drawback of the three-level neutral-point-clamped (3L-NPC) inverters. Conventional hybrid PWM strategies, which combine zero sequence voltage injection PWM (ZVI-PWM) with double modulation wave PWM (DMW ...
Guozheng Zhang   +4 more
doaj   +1 more source

A Carrier-Based PWM Strategy Providing Neutral-Point Voltage Oscillation Elimination for Multi-Phase Neutral Point Clamped 3-Level Inverter

open access: yesIEEE Access, 2019
General pulse width modulation (PWM) model for multi-phase neutral point (NP) clamped (NPC) 3-level inverter (3LI) is described. A novel PWM strategy for N -phase NPC 3LI with unconditional NP voltage balance is proposed as well as its carrier-based ...
Weidong Jiang   +4 more
doaj   +1 more source

Modified Phase-Shifted PWM for Cascaded Half-Bridges of Photovoltaic Application

open access: yesIEEE Access, 2020
Photovoltaic power plants are generally far away from loads such as cities and industrial zones. Moreover, long-distance power transmission for renewable energy will become an inevitable trend in the future.
Xiaoguang Diao   +5 more
doaj   +1 more source

Interleaved Pulse Width Modulation Based on Modified Carrier in Parallel Operation

open access: yesIEEE Access, 2021
An interleaved pulse width modulation (PWM) can be employed in a parallel operation of three-phase converters because the interleaved PWM increases the equivalent switching frequency and significantly enhances the output current harmonics.
Hyun-Sam Jung
doaj   +1 more source

A Soft-Switching Control for Cascaded Buck-Boost Converters Without Zero-Crossing Detection

open access: yesIEEE Access, 2019
This paper proposes a novel soft-switching control without zero-crossing detection for the cascaded buck-boost converters (CBBCs). The proposed soft-switching control consists of two parts: soft-switching modulation and closed-loop control.
Jingrong Yu   +4 more
doaj   +1 more source

Performance Analysis of Modulation Strategies in Single-Phase HBNPC Inverter Across Variable Operating Conditions

open access: yesIEEE Access
This study investigates the performance of a single-phase 5-level H-Bridge Neutral Point Clamped (HBNPC) inverter across various operating conditions.
Nazlican Cavli, Emre Ozkop
doaj   +1 more source

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