Title:
|
Modulation techniques applied to medium voltage modular multilevel converters for renewable energy integration: A review
|
Author:
|
Antonio Ferreira, Abel; Gomis Bellmunt, Oriol; Collados Rodríguez, Carlos
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica; Universitat Politècnica de Catalunya. CITCEA - Centre d'Innovació Tecnològica en Convertidors Estàtics i Accionaments |
Abstract:
|
Modular multilevel converters (MMC) inherent features are gaining more attention for dc voltage transmission systems. One of the main research paths regarding the converter performance deals with its voltage modulation. Specifically, for medium voltage applications with relatively small number of submodules, the voltage modulation techniques impact on the MMC performance needs to be studied. This work provides an extensive review of the carrier-based pulse with modulation (CB-PWM) techniques proposed to be applied on previous multilevel inverter versions. The CB-PWM methods were adapted to be compatible with an additional cell ranking and selection algorithm to ensure equal energy distribution on the arm cells. The state-of-the-art of zero sequence signals (ZSS) applied on three-phase inverters is also reviewed. The alliance between the ZSS with the CB-PWM, as well as the nearest level modulation (NLM), has an important impact on the MMC harmonic content, efficiency and voltage ripple of its cells capacitors. A 15 MW 28-cell-based MMC is used to investigate each particular combination between the modulation method and the common mode ZSS. |
Subject(s):
|
-Àrees temàtiques de la UPC::Energies -Àrees temàtiques de la UPC::Energies::Energia elèctrica -Electric power distribution -Electric current converters -Losses -MMC -Power quality -Pulse width modulation (PWM) -Energia elèctrica--Distribució -Convertidors de corrent elèctric |
Rights:
|
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
|
Article - Submitted version Article |
Share:
|
|