Progressive change of chaotic PWM patterns in DC-AC random PWM schemes using weighted switching decision

Author

Hui, S.Y.R. ; Sathiakumar, S. ; Shrivastava, Y.

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong

Volume

2

fYear

1997

fDate

22-27 Jun 1997

Firstpage

1454

Abstract

This paper shows that random PWM (RPWM) schemes are in fact chaotic in nature and that the degree of chaos can be manipulated in order to improve the spectral performance of the RPWM method for DC-AC power conversion. An improved RPWM method which involves a weighted switching decision process for controlling the degree of chaos in RPWM is described. With an appropriately added deterministic nature, progressive change of such chaotic behaviour in RPWM schemes caused by the weighted process is demonstrated in a qualitative manner

Keywords

DC-AC power convertors; PWM invertors; chaos; power conversion; switching; DC-AC power conversion; chaotic PWM patterns; chaotic behaviour; deterministic nature; random PWM; spectral performance; weighted switching decision process; Acoustic pulses; Chaos; Delta modulation; Frequency; Power conversion; Power engineering and energy; Power generation; Pulse inverters; Pulse width modulation; Space vector pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE

Conference_Location

St. Louis, MO

ISSN

0275-9306

Print_ISBN

0-7803-3840-5

Type

conf

DOI

10.1109/PESC.1997.616958

Filename

616958