A. Hamid, Lu Wan, H. Loschi, Douglas Nascimento, F. Grassi, R. Smoleński, G. Spadacini, S. Pignari
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引用次数: 2
摘要
本文研究了随机调制策略在降低DC-DC变换器传导辐射方面的有益效果。为了一方面实现对变换器的有效建模(PSpice)，另一方面实现调制方案的易于实现(Simulink)，采用PSpice-Simulink联合仿真进行分析。特别是，随机脉宽调制用于控制涉及第二代Cree SiC MOSFET的DC-DC变换器。PSpice模型考虑了变换器及其寄生元件的非线性特性。将预测的CM和DM发射与标准PWM获得的发射进行比较，显示在感兴趣的频率范围内总发射显著减少。
PSpice-Simulink Co-Simulation of the Conducted Emissions of a DC-DC Converter with Random Modulation
This paper investigates the beneficial effects of Random Modulation strategies in reducing the conducted emissions generated by DC-DC converters. The analysis is carried out by PSpice-Simulink co-simulation in order to achieve effective modelling of the converter on the one hand (PSpice), and easy implementation of the modulation scheme on the other (Simulink). Particularly, Random Pulse Width Modulation is used to control a DC-DC converter involving second-generation Cree SiC MOSFET. The non-linear characteristics of the converter as well as its parasitic elements are considered by the PSpice model. The predicted CM and DM emissions are compared versus those obtained by standard PWM, showing a significant reduction of the overall emissions in the frequency range of interest.
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