Results 71 to 80 of about 1,684,593 (114)

Real-Time Optimization Strategy to Minimize Switching Losses for Three-Level NPC Inverter

open access: yesCSEE Journal of Power and Energy Systems
This paper proposes a real-time optimization strategy, aimed at minimizing switching losses in a three-level neutral-point-clamped (3L-NPC) inverter.
Kai Li   +5 more
doaj   +1 more source

Spectral characterisation of shortened pulse position modulation format [PDF]

open access: yes, 2010
Shortened pulse position modulation (SPPM) is a new modulation format that has recently been proposed for underwater wireless optical communications. A full spectral characterisation of SPPM is considered and original expressions are presented, which ...
Cryan, R.A.
core   +1 more source

Discontinuous PWM Method for Single Inverter Dual Parallel PMSM Drives to Minimize Power Loss of Inverter

open access: yesIEEE Access
This paper proposes a discontinuous pulse width modulation (DPWM) method for single inverter dual parallel (SIDP) permanent magnet synchronous motor (PMSM) drives to minimize the power loss of the inverter.
Sang-Jun Lee, Kyo-Beum Lee
doaj   +1 more source

A randomized carrier-based discontinuous pulse width modulation strategy for neutral point clamped three-level inverter

open access: yes
This article introduces a novel approach called randomized carrier-based discontinuous pulse width modulation (RCDPWM) to address the challenge of mitigating both low-order and high-order harmonics concentrated at the switching frequency and its integer ...
Aibeche, Abderrezak   +3 more
core   +1 more source

A DPWM with High Efficiency and Low CMV for DMC

open access: yes, 2022
This thesis presents a discontinuous pulse width modulation (DPWM) with high efficiency and low common mode voltage (CMV) for direct matrix converter (DMC).
Hu, Cheng-Chin
core  

An extended dual input dual output three level Z source inverter with improved switch loss reduction technique

open access: yesJournal of Electrical Systems and Information Technology, 2016
Multilevel inverter (MLI) is a proven technology used for industrial applications due to low output total harmonic distortion (THD), high power handling capability and low active device rating.
N.B. Deshmukh   +3 more
doaj   +1 more source

Sideband Vibro-Acoustics Suppression and Numerical Prediction of Permanent Magnet Synchronous Motor Based on Markov Chain Random Carrier Frequency Modulation

open access: yesApplied Sciences
This paper presents a Markov chain random carrier frequency modulation (MRCFM) technique for suppressing sideband vibro-acoustic responses caused by discontinuous pulse-width modulation (DPWM) in permanent magnet synchronous motors (PMSMs) for new energy
Yong Chen   +4 more
doaj   +1 more source

Thermally Compensated Discontinuous Modulation Strategy for Cascaded H-Bridge Converters [PDF]

open access: yes, 2018
A widely adopted multilevel converter topology is the cascaded H-bridge (CHB), as it can provide voltage and power scalability. However, since the CHB converter can be composed by cells with different remaining lifetime, it could be useful to delay a ...
Markus Andresen   +7 more
core   +1 more source

Simplified Carrier-Based SVDPWM Methods Using Reduced Common Mode Voltage Vector Redundancy for Improving Output Current Ripple in Four-Level NPC Inverter

open access: yesIEEE Access
In this article, new fast and Three-level reduced common-mode voltage (RCMV) space vector Discontinuous pulse width modulation (SVDPWM) strategies are proposed to achieve high performance in four-level neutral point clamped (4L-NPC) inverters.
Le Nam Pham   +2 more
doaj   +1 more source

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