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POWER SPECTRAL DENSITY OF DUAL RANDOMIZED DISCONTINUOUS PULSE WIDTH MODULATION

REVUE ROUMAINE DES SCIENCES TECHNIQUES — SÉRIE ÉLECTROTECHNIQUE ET ÉNERGÉTIQUE, 2023
This paper addresses the spectral characteristics of a carrier-based dual randomized discontinuous pulse width modulation (DRDPWM) technique for reducing conducted EMI and switching losses in three-phase voltage source inverters. It combines two simple random schemes, random carrier frequency modulation (RCF-DPWM) and random pulse position modulation ...
openaire   +1 more source

Pulse width modulation technique with harmonic injection in the modulating wave and discontinuous frequency modulation for the carrier wave to reduce vibrations in asynchronous machines

open access: yesIET Power Electronics, 2019
A new carrier‐based pulse‐width modulation (PWM) technique to control power inverters is presented in this study. To generate the output waveform, this technique compares a harmonic‐injection modulating wave and a frequency‐modulated triangular carrier wave.
Antonio Francisco Ruiz González   +1 more
exaly   +6 more sources

An adaptive Discontinuous Pulse Width Modulation (DPWM) method for three phase inverter

2017 IEEE Applied Power Electronics Conference and Exposition (APEC), 2017
This paper presents an adaptive Discontinuous Pulse Width Modulation (DPWM) method for three phase inverter. A common-mode (CM) signal is injected in the modulation wave to realize the DPWM and the waveform of the injected CM signal is modulated according to the modulation index of the inverter.
Fangcheng Liu, Kai Xin, Yunfeng Liu
openaire   +1 more source

An efficient discontinuous pulse width modulation algorithm for multileg voltage-source converters

2011 IEEE International Symposium on Industrial Electronics, 2011
This paper presents a scalable and effective discontinuous pulse width modulation algorithm for multileg converters. The method can also be used in three- and four-leg voltage-source converters, though its simplicity in comparison to so called vector modulators shows up clearly in systems with more than three legs.
Lech Grzesiak   +2 more
exaly   +2 more sources

A study of inverter loss reduction using discontinuous pulse width modulation techniques

3rd IET International Conference on Power Electronics, Machines and Drives (PEMD 2006), 2006
In this paper, the reduction in inverter losses by using various forms of Discontinuous Pulse Width Modulation (DPWM) scheme is investigated. Models for various forms of DPWM excitation have been implemented using Pspice and these have been combined with an existing model for a three-phase voltage source inverter.
Y. Wu, C.Y. Leong, R.A. McMahon
openaire   +1 more source

High-Performance Discontinuous Pulse Width Modulation Strategy for 3-level Asymmetric T-NPC Inverter

2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia), 2023
Nho-Van Nguyen
exaly   +2 more sources

Performance Analysis of Discontinuous Pulse Width Modulation Schemes on PUC-5 Inverter

2018 2nd IEEE International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES), 2018
Considerable research is being carried out on the effect of the choice of PWM scheme on inverter performance. Discontinuous PWM schemes, initially developed by “Depenbrock” in 1977, has become one of the most promising modern PWM methods. This modulation scheme is also known as “Depenbrock PWM” scheme. In this paper the discontinuous modulation schemes
Abdul Azeem   +3 more
openaire   +1 more source

Application of pulse-width modulated pre-emphasis in closely-spaced transmission lines with additional discontinuities

2011 IEEE EUROCON - International Conference on Computer as a Tool, 2011
Transmitter pre-emphasis techniques to overcome high-slope losses of printed circuit board (PCB) with closely-spaced copper interconnect are presented. The pre-emphasis technique based on pulse-width modulation (PWM) using a timing resolution instead of an amplitude resolution to adjust the filter transfer function is presented.
Bretislav Sevcik, Lubomír Brancík
openaire   +2 more sources

Output Voltage Sampling Circuit for Discontinuous Conduction Mode Flyback Pulse-Width Modulation Controller

Journal of Circuits, Systems and Computers, 2016
Primary-side controlled pulse-width modulation (PWM) flyback converter has been widely used in low-power and low-voltage products for its simple structure and low cost. This paper presents a novel output voltage sampling circuit which considers the influence of the rectifier diode current on the output voltage sampling.
Ling-feng Shi   +3 more
openaire   +1 more source

Advanced Double Discontinuous Pulse Width Modulated Three-Phase Power Converter

2025 IEEE Energy Conversion Congress & Exposition Asia (ECCE-Asia)
Three-phase bi-directional ac-dc converters are required to have high efficiency. To improve efficiency, it is required to decrease the number of switching transition. Therefore, a novel switching or pulse width modulation (PWM) strategy is proposed in this paper, where two phases are not switching in a switching period. To achieve this, an extra diode
Maheshwari, Ramkrishan   +2 more
openaire   +2 more sources

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