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Study and comparison of discontinuous modulation for modular multilevel converters in motor drive applications
(Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
Article
Open AccessDiscontinuous modulation applied to modular multilevel converters is an effective method for reducing the capacitor voltage ripples. In this paper, the discontinuous modulation is adapted and used in a motor drive application. ... -
Single-carrier phase-disposition PWM techniques for multiple interleaved voltage-source converter legs
(Institute of Electrical and Electronics Engineers (IEEE), 2017-10-26)
Article
Open AccessInterleaved converter legs are typically modulated with individual carriers per leg and phase-shifted PWM (PS-PWM) as it facilitates current balancing amongst the legs. Phase-disposition PWM (PD-PWM), despite the better ... -
Nonlinear loads model for harmonics flow prediction, using multivariate regression
(Institute of Electrical and Electronics Engineers (IEEE), 2017-06)
Article
Open AccessThis paper describes a method for obtaining a model of a single or a set of nonlinear loads (NLL) connected to a certain point of an electrical network. The basic assumption is that the network supplying the NLL has ... -
Influence of data resolution in nonlinear loads model for harmonics prediction
(2016)
Article
Open AccessThis paper describes the influence of data resolution in the agreement of models to predict harmonics generated by nonlinear loads (NLL), basically formed by single phase and three phase rectifiers, eventually combined ... -
Generalized PWM-based method for multiphase neutral-point-clamped converters with capacitor voltage balance capability
(2017-06-12)
Article
Open AccessThis 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 ... -
Harmonic interaction influence due to current source shunt filters in networks supplying nonlinear loads
(2012)
Article
Restricted access - publisher's policy -
Control of Circulating Currents in Modular Multilevel Converters Through Redundant Voltage Levels
(2016-11-01)
Article
Open AccessAmong the main control targets in a modular multilevel converter (MMC) is the control of the circulating currents within the phase legs of the topology. This paper presents a controller for the circulating current of the ... -
Reliable modular multilevel converter fault detection with redundant voltage sensor
(2016-02-08)
Article
Open AccessThis paper presents a fault-tolerant configuration for the modular multilevel converter (MMC). The procedure is able to detect faults in voltage sensors and semiconductor switching devices, and it can reconfigure the system ... -
Interleaved operation of three-level neutral point clamped converter legs and reduction of circulating currents under SHE-PWM
(Institute of Electrical and Electronics Engineers (IEEE), 2016-06)
Article
Open AccessInterleaving of voltage-source converter (VSC) legs enables higher output currents per phase, effectively increasing the power rating without increasing semiconductor ratings. However, the interleaved operation results ... -
Closed-Loop discontinuous modulation technique for capacitor voltage ripples and switching losses reduction in modular multilevel converters
(2015-04-15)
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Open Access -
On improving phase-shifted PWM for flying capacitor multilevel converters
(2016-08-01)
Article
Restricted access - publisher's policyThis letter proposes a phase-shifted pulse-width modulation (PS-PWM) technique for the flying capacitor (FC) multilevel converter that improves the quality of the line-to-line voltages. In traditional PS-PWM, the line-to-line ... -
New measuring technique for reducing the number of voltage sensors in modular multilevel converters
(2016-01-01)
Article
Open AccessThis paper presents a new technique for measuring the capacitor voltages in a modular multilevel converter using a reduced number of voltage sensors. With this technique, the minimum number of voltage sensors per arm is ...
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