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Current balancing strategy in parallel-connected legs of power inverters
(EPE Association, 2009-10-31)
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Comunicació de congrés.
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The parallel connection of inverter legs is a way to increase the output currents and thus the converter rated power. The connection is made by inductors and a critical issue is to achieve balanced currents among the legs. ...
Study of modulation techniques applied to full bridge single-phase inverters based on wide-bandgap semiconductors
(2019)
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Comunicació de congrés.
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Wide-band gap (WBG) devices are gradually replacing standard Si semiconductors in power converters. This is due to the fact that WBG devices exhibit lower capacitance and on-resistance and besides, as they can switch at ...
PWM algorithm with adaptive offset for three-level multi-phase neutral-point-clamped converters
(2013)
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This paper proposes a PWM based modulation strategy particularly useful for three-level multi-phase Neutral-Point-Clamped Converters. It achieves similar results to those obtained with the space vector modulation but ...
Reduction of output common mode voltage using a novel SVM implementation in matrix converters for improved motor lifetime
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Article.
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Article.
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This paper presents the study of an alternative Space Vector Modulation (SVM) implementation for Matrix Converters (MC) which reduces the output Common Mode (CM) voltage. The strategy is based on replacing the MC zero ...
Voltage balancing strategy for a five-level flying capacitor converter using phase disposition PWM with sawtooth-shaped arriers
(2012)
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The flying capacitor (FC) multilevel converter has attracted a great deal of interest in the recent years because of its easier extension to a higher number of levels (n>;3), as compared to its counterpart, the diode-clamped ...
Recent advances and industrial applications of multilevel converters
(IEEE Press. Institute of Electrical and Electronics Engineers, 2010-08)
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Article.
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Multilevel converters have been under research and
development for more than three decades and have found successful
industrial application. However, this is still a technology under
development, and many new contributions ...
Enhanced phase-shifted PWM carrier disposition for interleaved voltage-source inverters
(2014-03-01)
Article.
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Article.
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This letter presents a novel implementation of pulse width modulation that improves the quality of the line-to-line output voltages in interleaved multiphase voltage-source inverters (VSIs). In multiphase VSIs with n ...
A modified voltage balancing sorting algorithm for the modular multilevel converter: Evaluation for staircase and phase-disposition PWM
(2014)
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This paper introduces a low complexity implementation of the voltage balancing sorting algorithm to reduce the switching frequency of the power devices in modular multilevel converters (MMCs). Two modulation techniques are ...
Capacitor voltage balancing in a three-level-converter-based energy storage system
(2013-10-01)
Article.
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Article.
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This paper discusses a grid-connected energy storage system based on two three-level (3L) converters: a DC-DC one and a neutral-point-clamped inverter. When compared to a system using standard two-level converters, the ...
Generalized PWM-based method for multiphase neutral-point-clamped converters with capacitor voltage balance capability
(2017-06-12)
Article.
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Article.
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This paper presents a generalized pulse width modulation (PWM)-based control algorithm for multiphase neutral-point-clamped (NPC) converters. The proposed algorithm provides a zero sequence to be added to the reference ...