Shaping of the Noise Spectrum in Power Electronic Converters

被引：0

作者：

Lascu, Cristian ^{[1
]}

Trzynadlowski, Andrzej M. ^{[1
]}

Kirlin, R. Lynn ^{[2
]}

机构：

[1] Univ Nevada, Dept Elect & Biomed Engn, Reno, NV 89557 USA

[2] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8W 2Y2, Canada

来源：

2010 TWENTY-FIFTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2010年

基金：

美国国家科学基金会;

关键词：

MODULATION; FREQUENCY;

D O I：

10.1109/APEC.2010.5433470

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Operation of switch-mode converters results in electromagnetic noise propagating throughout the power electronic system. PWM strategies with fixed switching frequency generate harmonics in the spectra of converter voltages and currents. Random pulse width modulation techniques allow elimination of the harmonics, resulting in a continuous spectrum of noise, that is, a spectrum retaining all frequency components. As a next step in advanced spectral shaping, a method presented in this paper produces spectral nulls at selected frequencies. This allows carving communication channels in the noise and removing spectral power at frequencies harmful to the system. Theoretical analysis, computer simulations, and experimental results are presented.

引用

页码：1749 / 1754

页数：6

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