Results 11 to 20 of about 182 (112)

Sector Subdivision Based SVPWM Strategy of Neutral-Point-Clamped Three-Level Inverter for Current Ripple Reduction

Energies, 2019
This paper presents a sector subdivision based space vector pulse width modulation (SVPWM) strategy with reduced current ripple for a three-level inverter.
Guozheng Zhang, Bingxu Wei, Xin Gu, Xinmin Li, Zhanqing Zhou, Wei Chen   +5 more
doaj   +2 more sources

Discontinuous Space Vector PWM Strategy for Three-Phase Three-Level Electric Vehicle Traction Inverter Fed Two-Phase Load

World Electric Vehicle Journal, 2020
Discontinuous pulse width modulation (DPWM) strategies are usually adopted to reduce the switching loss and output current ripple of three-phase three-level traction inverters under three-phase load conditions. However, if there is a short circuit in any
Guozheng Zhang, Yuwei Wan, Zhixin Wang, Le Gao, Zhanqing Zhou, Qiang Geng   +5 more
doaj   +2 more sources

A Combined DPWM Based on DSOGI-FLL for Switching-Loss Reduction and Dead-Time Compensation

IEEE Access, 2020
High efficiency and high output power quality of converters are always two goals pursued in power electronic systems. In this paper, the conventional discontinuous pulse width modulation (DPWM) for switching-loss reduction and a modified time-based dead ...
Qingzeng Yan, Pengxiao Sun, Langtao Xiao, Rende Zhao, Hailiang Xu   +4 more
doaj   +2 more sources

DC-link Ripple Reduction in a DPWM-Based Two-Level VSI [PDF]

Energies, 2018
This paper proposes a new method to reduce the ripple current of the DC-link capacitor in a two-level voltage source inverter (VSI), with a discontinuous pulse-width modulation (DPWM).
Anatolii Tcai, Ibrahim Mohd Alsofyani, In-Yong Seo, Kyo-Beum Lee   +3 more
doaj   +2 more sources

Analysis of Efficiency and Noise, Vibration, and Hardness Characteristics of Inverter for Electric Vehicles According to Pulse Width Modulation Technique

World Electric Vehicle Journal
This study investigates the efficiency and noise, vibration, and harshness (NVH) characteristics of electric vehicle (EV) powertrains based on three key Pulse Width Modulation (PWM) techniques: Space Vector PWM (SVPWM), Discontinuous PWM (DPWM), and ...
Do-Yun Kim
doaj   +2 more sources

Research on Weighting Efficiency Improvement for PV Inverter Based on Segmental Modulation

Kongzhi Yu Xinxi Jishu, 2016
There are limitations in the evaluation strategy on power generation efficiency of PV grid-connected inverter with maximum conversion efficiency.
ZHAO Xianggui, CHEN Yifeng, WANG Nan, WU Hengliang   +3 more
doaj   +2 more sources

Development of Various Types of Independent Phase Based Pulsewidth Modulation Techniques for Three-Phase Voltage Source Inverters

Machines, 2023
Discontinuous pulse-width-modulation (DPWM) methods have been extensively used in the industrial area to reduce overall losses, which decreases the corresponding thermal stress on the power switches of converters.
Minh Hoang Nguyen, Sangshin Kwak, Seungdeog Choi   +2 more
doaj   +2 more sources

Power Factor Adaptive DPWM Control Strategy for T-Type Three-Level Inverters

Energies
With the widespread application of multilevel inverters, device losses have become a critical area of research. A key limitation of conventional three-level discontinuous pulse width modulation (DPWM) strategies is their inability to maintain switching ...
Jialiang Tian, Yingying Xu, Mingxia Xu, Zhenjiang Liu, Yuchi Zhou   +4 more
doaj   +2 more sources

A Virtual Negative Resistor Based Common Mode Current Resonance Suppression Method for Three-Level Grid-Tied Inverter with Discontinuous PWM

Energies, 2020
The output LC filter of a photovoltaic (PV) string three-level grid-tied inverter that connects the filter capacitor neutral point to dc-link capacitor neutral point can reduce the common-mode (CM) current injected to the grid by letting the CM current ...
Qiyu Li, Hongwei Zhou, Jiansong Zhang, Shengdun Zhao, Jingfeng Lu   +4 more
doaj   +2 more sources

A Comprehensive AC Current Ripple Analysis and Performance Enhancement via Discontinuous PWM in Three-Phase Four-Leg Grid-Connected Inverters [PDF]

Energies, 2020
A complete analysis of the ac output current ripple in four-leg voltage source inverters considering multiple modulation schemes is provided. In detail, current ripple envelopes and peak-to-peak profiles have been determined in the whole fundamental ...
Riccardo Mandrioli, Aleksandr Viatkin, Manel Hammami, Mattia Ricco, Gabriele Grandi   +4 more
doaj   +3 more sources