Design of a PWM inverter regarding conducted EMC and losses: influence of some key parameters

Author

Guichon, J.M. ; Schanen, J.L. ; Roudet, J. ; Meille, R. ; Revol, B.

Author_Institution

Laboratoire d´´Electrotechnique de Grenoble, CNRS UMR, St. Martin d´´Heres, France

Volume

3

fYear

2005

fDate

2-6 Oct. 2005

Firstpage

1855

Abstract

An analytical model of both EMC and losses of a PWM inverter is presented, taking into account the most significant parameters. EMC representation replaces semiconductors with equivalent disturbance sources. Then, solving is achieved using simple transfer functions. Conduction losses are evaluated from on state voltage drop (taken from datasheet) and current in the switches. Commutation losses are computed from reference switching energy (datasheet) considered linear with the switched current. Based on this analytical approach, it is easy to investigate the role of the key design parameters of the inverter, regarding EMC and losses aspects. PWM strategy is thus investigated, as well as the DC bus level. Some variations on component technology are also presented.

Keywords

PWM invertors; design engineering; electromagnetic compatibility; losses; switches; transfer functions; EMC; PWM inverter; commutation losses; conduction losses; equivalent disturbance sources; reference switching energy; transfer functions; voltage drop; Analytical models; Capacitors; Electromagnetic compatibility; Electromagnetic interference; Low voltage; Pulse width modulation; Pulse width modulation inverters; Shape; Space vector pulse width modulation; Switching loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2005. Fourtieth IAS Annual Meeting. Conference Record of the 2005

ISSN

0197-2618

Print_ISBN

0-7803-9208-6

Type

conf

DOI

10.1109/IAS.2005.1518699

Filename

1518699