使用奈奎斯特或类奈奎斯特图预测DC-DC变换器中的三种典型不稳定性
Using Nyquist or Nyquist-Like Plot to Predict Three Typical Instabilities in DC-DC Converters
AI总结：
提出一种新的类奈奎斯特图，通过精确稳定性条件预测DC-DC变换器中的鞍结分岔、倍周期分岔和奈马克分岔三种不稳定性，并在单一图中准确判断不稳定性的发生和类型。
摘要：
通过变换精确稳定性条件，提出了一种新的类奈奎斯特图来预测DC-DC变换器中三种典型不稳定性的发生。这三种不稳定性是鞍结分岔（多解共存）、倍周期分岔（次谐波振荡）和奈马克分岔（准周期振荡）。在单一图中，它准确预测不稳定性是否发生以及不稳定性的类型。该图等效于奈奎斯特图，是避免这些不稳定性的有用设计工具。通过九个例子说明了该新图在预测固定或可变开关频率的降压或升压变换器中不稳定性的准确性。
英文摘要：
By transforming an exact stability condition, a new Nyquist-like plot is proposed to predict occurrences of three typical instabilities in DC-DC converters. The three instabilities are saddle-node bifurcation (coexistence of multiple solutions), period-doubling bifurcation (subharmonic oscillation), and Neimark bifurcation (quasi-periodic oscillation). In a single plot, it accurately predicts whether an instability occurs and what type the instability is. The plot is equivalent to the Nyquist plot, and it is a useful design tool to avoid these instabilities. Nine examples are used to illustrate the accuracy of this new plot to predict instabilities in the buck or boost converter with fixed or variable switching frequency.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
