Browsing by Author "Picas Prat, Ricard"
Now showing items 1-15 of 15
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A modified voltage balancing sorting algorithm for the modular multilevel converter: Evaluation for staircase and phase-disposition PWM
(2015-08-01)
Article
Open Access -
Circulating current injection methods based on instantaneous information for the modular multilevel converter
(Institute of Electrical and Electronics Engineers (IEEE), 2015-02-01)
Article
Open AccessThis paper studies different circulating current references for the modular multilevel converter. The circulating current references are obtained from the instantaneous values of the output current and modulation signal ... -
Closed-Loop discontinuous modulation technique for capacitor voltage ripples and switching losses reduction in modular multilevel converters
(2015-04-15)
Article
Open Access -
Control and modulation of modular multilevel converters
(Universitat Politècnica de Catalunya, 2016-12-22)
Doctoral thesis
Open AccessThe integration of renewable energy sources in the electrical grid is reducing our dependence on fossil fuels. However, to ensure feasibility and reliability of distributed energy generation, more efficient and higher power ... -
Control de velocitat d'un motor a través d'Ethernet
(Universitat Politècnica de Catalunya, 2010-06-17)
Master thesis (pre-Bologna period)
Open AccessAquest projecte consisteix en el disseny i construcció d’un dispositiu electrònic capaç de regular la velocitat d’un motor DC comunicant-se per Ethernet i en la implementació d’un software de supervisió i control de ... -
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 ... -
Discontinuous modulation of modular multilevel converters without the need for extra submodules
(2015)
Conference report
Open Access -
Estudi d'un convertidor MMC
(Universitat Politècnica de Catalunya, 2012-07)
Master thesis (pre-Bologna period)
Open Access -
Minimization of the capacitor voltage fluctuations of a modular multilevel converter by circulating current control
(2012)
Conference report
Open AccessThe modular multilevel converter (MMC) is one of the most potential converter topologies for medium/high power/voltage applications. One of the main technical challenges of an MMC is to eliminate/minimize the circulating ... -
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 ... -
Optimal injection of harmonics in circulating currents of modular multilevel converters for capacitor voltage ripple minimization
(2013)
Conference report
Restricted access - publisher's policyThis paper proposes an algorithm to calculate the optimal amplitude and phase of the harmonic current components that can be injected in the circulating currents of a modular multilevel converter (MMC) to minimize 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 ... -
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. ... -
Submodule power losses balancing algorithms for the modular multilevel converter
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference report
Open AccessTolerance and component aging can cause significant differences in the capacitance values of the submodules (SMs) in a modular multilevel converter (MMC). Depending on the modulation technique, capacitance mismatches may ... -
Utilising redundant voltage levels for circulating current control in modular multilevel converters
(2015)
Conference report
Open Access
