NDLI: Integral-series Fourier analysis of chaotic PWM patterns for common mode voltage stresses

Content Provider	IET Digital Library
Author	Asefi, Mahdi Nazarzadeh, Jalal
Abstract	In this study, the theory of pulse width modulation (PWM) is developed for both sine-wave PWM (SPWM) and chaotic sine-wave PWM (CSPWM). In SPWM, power spectra are analysed by an analytical method such as double Fourier series (DFS) technique, and the integral-series Fourier method is fully devised and analytically theorised for CSPWM. It is shown that the root-mean-square value of inverter's zero-sequence voltage does not rely on carrier and reference frequency in fixed-frequency SPWM, while in CSPWM, this depends on frequency modulating gain and chaotic sequence of numbers. Also, the computation time of purely numerical harmonic analysis can be much heavier than analytical ones. Furthermore, the DFS and integral-series Fourier methods are applied to SPWM and CSPWM with two different frame sizes of squirrel cage motors for the shaft voltage and the electro-magnetic interference (EMI). The numerical and experimental results show that CSPWM can have positive effect on the shaft voltage while it definitely weakens the EMI problems.
Starting Page	1591
Ending Page	1602
Page Count	12
ISSN	17554535
Volume Number	11
e-ISSN	17554543
Issue Number	Issue 9, Aug (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/11/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2017.0806
Journal	IET Power Electronics
Publisher Date	2018-04-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Analytical Method Asynchronous Machine Carrier Frequency Chaos Chaotic PWM Pattern Chaotic Sequence Chaotic Sine-wave PWM Common Mode Voltage Stresses CSPWM DFS Technique Double Fourier Series Technique Electromagnetic Compatibility Electromagnetic Interference EMI Fixed-frequency SPWM Fourier Analysis Frame Sizes Frequency Modulating Gain Harmonic Analysis Integral-series Fourier Analysis Interference Inverter Zero-sequence Voltage Numerical Analysis Numerical Harmonic Analysis Numerical Method Power Spectra Analysis Pulse Width Modulation Theory PWM Invertors Reference Frequency Root-mean-square Value Shaft Voltage Sine-wave PWM Squirrel Cage Motors
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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