论文标题
逐个周期控制的DC-DC转换器的大信号稳定性保证
Large-Signal Stability Guarantees for Cycle-by-Cycle Controlled DC-DC Converters
论文作者
论文摘要
稳定性保证对于消费电子和能源存储系统中的逐个周期控制的DC-DC转换器至关重要。逐个周期DC-DC转换器上的传统稳定性分析是不完整的，因为电感器电流坡道被认为是固定的。但是，相反，电感坡道不是固定的，因为它们取决于大信号瞬变的输出电压。我们展示了一种新的大信号稳定性理论，该理论将逐行的DC-DC转换器视为特定类型的反馈互连系统。基于该系统提供了分析和实际稳定性标准。标准表明L/R和RC时间常数是确定当前坡道和输出电压之间耦合量的设计参数。
Stability guarantees are critical for cycle-by-cycle controlled dc-dc converters in consumer electronics and energy storage systems. Traditional stability analysis on cycle-by-cycle dc-dc converters is incomplete because the inductor current ramps are considered fixed; but instead, inductor ramps are not fixed because they are dependent on the output voltage in large-signal transients. We demonstrate a new large-signal stability theory that treats cycle-by-cycle controlled dc-dc converters as a particular type of feedback interconnection system. An analytical and practical stability criterion is provided based on this system. The criterion indicates that the L/R and RC time constants are the design parameters that determine the amount of coupling between the current ramp and the output voltage.
