Zero sequences optimizing different criteria for three-phase multilevel inverters
Carregando...
Data
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal de Minas Gerais
Descrição
Tipo
Artigo de evento
Título alternativo
Primeiro orientador
Membros da banca
Resumo
In a world with growing concern for efficiency, power electronics associated to high level control techniques are more and more used in different fields of application. One of the most common applications are three-phase machines fed by three-phase inverters to tune precisely the power consumption. In recent years, multilevel inverters have become the best solution to address the problems of high voltage, high current or high efficiency. PWM modulation strategies play an important role in the design of such converters and one may choose adequate carriers and zero order signals in order to improve the design of an important component of the system. Some PWM methods found in the literature minimize some key elements of three-phase systems, however when multilevel converters are considered, little is found. The aim of the paper is to present a simple but powerful approach which allows us to determine optimal zero sequence signals (also called Common Mode Offset, CMO) corresponding to any desired objective for many different topologies. It will be shown that some widely accepted PWM methods as well as new optimal methods are found by this method. These PWM methods will be compared by means of simulation and some CMOs created using our approach are validated by experimental results.
Abstract
Assunto
Engenharia Elétrica, Indústria
Palavras-chave
PWM, Semiconductor device modeling , Multilevel converters , Power demand , Switching loss , Voltage , Pulse width modulation , Tools, PWM methods , three-phase inverter , series and parallel multilevel inverters, Zero Sequence , Multilevel Inverters , High Voltage , Optimization Method , Optimal Signal , Applications In Different Fields , Multilevel Converter , Three-phase Inverter , Filter Size , Output Current , Coupling Coefficient , State Machine , Magnetic Flux , Modulation Index , Output Filter , Switching Loss , Input Current , Copper Loss , Current Harmonics , Input Filter , Rms Value Of Current , Space Vector Modulation , Switching Energy , Rms Current , Three-phase Motor , Harmonic Content , Voltage Source Inverter , Switching Frequency , Switching Loss Reduction
Citação
Curso
Endereço externo
https://ieeexplore.ieee.org/document/8557898