Open AccessChaotic point process description of converter discrete subsystem and EMI suppression
Author(s) -
Yang Ru,
Bo Zhang,
Dongyuan Qiu
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.1389
Subject(s) - chaotic , emi , pulse width modulation , control theory (sociology) , computer science , process (computing) , physics , topology (electrical circuits) , electromagnetic interference , control (management) , mathematics , power (physics) , telecommunications , quantum mechanics , combinatorics , artificial intelligence , operating system
The converter is described as a continuous-discrete system based on hybrid system theory. According to the theory of chaotic PWM, chaotic point process model of converter is established. Chaotic PWM control is done with piece-wise chaotic maps. The characteristic function and distribution of chaotic PWM are obtained, the spectrum of chaotic PWM and periodic PWM are obtained too. Experimental results verify that the peak spectrum of chaotic converter can be suppressed with stable output, and EMI is improved distinctly.