论文标题
使用控制条件方法克服电流模式控制的高频限制 - 第一部分：建模和分析
Overcoming High Frequency Limitations of Current-Mode Control Using a Control Conditioning Approach -- Part I: Modeling and Analysis
论文作者
论文摘要
电流模式控制是功率转换器最受欢迎的控制器策略之一。随着宽带设备（包括GAN和SIC）的出现，由于开关损失较低，更高的开关频率在更高功率下变得更加可行。但是，由于当前的传感器干扰，更快的较高的开关频率的优势浪费了更高的带宽控制。我们提出了一个框架，用于表征和分析这种干扰是对控制器模型的不确定性。这些不确定性引入了其他动态和非线性，这可能会导致当前控制循环的不稳定性和较差的短暂性能。在本文中，我们提供了一个基于新的控制条件方法的模型框架，该方法可以保证全球稳定性和优化瞬态性能的策略。在本文系列的第二部分中，我们介绍了三种有效解决方案的分析，设计和硬件验证。
Current-mode control is one of the most popular controller strategies for power converters. With the advent of wide bandgap devices including GaN and SiC, higher switching frequencies have become more viable at higher power because of lower switching losses. However, the advantage of higher switching frequency for faster, higher bandwidth control is squandered because of current sensor interference. We present a framework for characterizing and analyzing this interference as uncertainties to the controller model. These uncertainties introduce additional dynamics and nonlinearity that can result in instability and poor transient performance of the current control loop. In this paper, we provide a model framework based on a new control conditioning approach that guarantees global stability and a strategy for optimizing transient performance. In Part II of this paper series, we present the analysis, design, and hardware validation of three effective solutions.
