1. 华南理工大学电力学院,广东,广州,510640
2. 广州大学物理与电子工程学院,广东,广州,510400
3. 华南理工大学电力学院广东广州,510640
4. 广州大学物理与电子工程学院广东广州,510400
纸质出版:2007
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杨汝, 张波. 基于不变分布的开关变换器混沌PWM 特性分析及频谱优化设计[J]. 电子学报, 2007,35(11):2150-2155.
YANG Ru, ZHANG Bo. Spectrum Characteristics and Spectrum Optimizing Design of Chaotic PWM Based on Invariable Distribution[J]. Acta Electronica Sinica, 2007, 35(11): 2150-2155.
本文利用统计分析工具
采用不变分布作为新的参数指来研究混沌PWM调制开关变换器的动态行为
基于不变分布分析了混沌开关变换器PWM驱动脉冲的频率特性
量化分析得到其特征参数和频谱特征.研究表明初值敏感不影响混沌开关变换器的电流、电压、驱动脉冲的分布
不影响频谱的形状
所以研究不变分布从而提取混沌开关变换器的整体特征是研究混沌开关变换器的有效手段
并且可以由此优化设计频谱有效抑制EMI.
The article has studied the dynamic behavior of the chaotic PWM based on statistical tool and invariable distribution.The frequency characteristics of chaotic PWM have been analyzed based on the invariable distribution
characteristic parameters and spectrum characteristics are gained also.Simulation and experiment results show that the spectrum waveforms of drive pulse
switch voltage and inductance current have the same shape as the invariable distribution
so invariable distribution becomes a new effective method to abstract entail characteristics of chaotic converters
people can optimize the spectrum distribution of converter based on invariable distribution and get the best EMI suppressing effect.
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