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Chaotic Behavior in High-Gain Interleaved Dc-dc Converters

机译:高增益交错式DC-DC转换器中的混沌行为

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In this paper, chaotic behavior in high gain dc-dc converters with current mode control is explored. The dc-dc converters exhibit some chaotic behavior because they contain switches. Moreover, in power electronics (circuits with more passive elements), the dynamics become rich in nonlinearity and become difficult to capture with linear analytical models. Therefore, studying modeling approaches and analysis methods is required. Most of the high-gain dc-dc boost converters cannot be controlled with only voltage mode control due to the presence of right half plane zero that narrows down the stability region. Therefore, the need of current mode control is necessary to ensure the stability of this type of boost converter. A significant number of the work reported so far has concentrated on explaining the chaos phenomena in the language of the nonlinear dynamics literature. In addition to analyzing and studying chaotic behaviors, this presents some ideas about moving toward gainful utilization of the nonlinear properties of power electronics. Simulation and experimental studies are included to validate the theory, and results will be discussed.
机译:本文探讨了采用电流模式控制的高增益dc-dc转换器的混沌行为。 DC-DC转换器包含开关,因此表现出一些混乱的行为。此外,在电力电子设备(具有更多无源元件的电路)中,动力学变得非线性丰富,并且难以用线性分析模型捕获。因此,需要研究建模方法和分析方法。由于右半平面零会缩小稳定范围,因此大多数高增益dc-dc升压转换器无法仅通过电压模式控制进行控制。因此,需要电流模式控制来确保这种类型的升压转换器的稳定性。到目前为止,已报道的大量工作集中在用非线性动力学文献的语言解释混沌现象。除了分析和研究混沌行为外,这还提出了一些关于有偿利用电力电子非线性特性的想法。包括仿真和实验研究以验证该理论,并将讨论结果。

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