Reliability-oriented design of modular multilevel converters for medium-voltage STATCOM
Carregando...
Data
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal de Minas Gerais
Descrição
Tipo
Artigo de periódico
Título alternativo
Primeiro orientador
Membros da banca
Resumo
Modular multilevel converters (MMC) are complex systems, composed of many elements, and exposed to critical load demands in some cases. Thereby, a detailed design of its components is of preeminent importance to achieve a high system-level reliability. However, the high number of devices challenges the tradeoff between cost and reliability. This article, introduces a reliability-oriented design methodology, based on the cost to achieve a predefined unreliability level (U∞). A flowchart presents the main steps of the process, including the mission profile definition, selection of power devices, thermal modeling, reliability modeling, and the reliability-oriented selection. To evaluate the proposed methodology, a case study considering 17 MVA/13.8 kV MMC-static synchronous compensator (STATCOM) with a real mission profile data is conducted. A U∞ - cost map is introduced to compare various design solutions, based on power devices of different voltage classes and current capabilities.
Abstract
Assunto
Conversores eletrônicos
Palavras-chave
Reliability engineering, Insulated gate bipolar transistors, Automatic voltage control, Resistance heating, Multichip modules, Impedance
Citação
Curso
Endereço externo
https://ieeexplore.ieee.org/document/8818632