Multirate operation of switched-mode power converters

A. Khayatian, D.G. Taylor
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引用次数: 1

Abstract

A class of pulse-width modulated (PWM) systems that includes many switched-mode power converters is considered. A new multirate low-frequency sampling PWM scheme is introduced that not only provides the possibility for new types of operation, but also unifies the switching logic corresponding to established PWM schemes. An exact nonlinear discrete-time model is used to develop multirate nonlinear controllers and observers based on map-inversion concepts. This nonlinear design methodology is widely applicable, requiring only that the continuous-time small-signal average model be controllable and observable.<>
开关模式电源变换器的多速率运行
考虑了一类包含多个开关模式功率变换器的脉宽调制(PWM)系统。介绍了一种新的多速率低频采样PWM方案,该方案不仅为新型操作提供了可能,而且统一了现有PWM方案对应的开关逻辑。利用精确的非线性离散时间模型来开发基于映射反演概念的多速率非线性控制器和观测器。这种非线性设计方法是广泛适用的,只要求连续时间小信号平均模型是可控的和可观察的
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