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Robust control for buck voltage converter under resistive and inductive varying load

机译：降压转换器在阻性和感性变化负载下的鲁棒控制

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Voltage converter circuits are fundamental components in power electronics applications. However, their paramount role on various appliances due to their well-known benefits comes together with difficulties and restrictions for their modeling and control. A buck converter is naturally subjected to non-linearities, time-dependency, noise, and parameter variations. Altogether, it is difficult to provide a fully-descriptive model so linear approximations are commonly used, delegating those burdens to dependable controllers. Traditional models (and resulting controllers) are derived considering a simple resistance as converter's load. A non-resistive load actually requires the converter's model to be modified, many works have dealt only with resistive loads for sake of simplicity. As this behavior is seldom seen in real applications, this work focuses on a resistive-inductive varying loads. The robust controller design is able to face load variations, so cascaded or hierarchical approaches are avoided, resulting in a low-order single-loop controller. Proposal validation is provided through simulation tests over the actual circuit components' models, incorporated in Simulink's Simscape™ library.
机译：电压转换器电路是电力电子应用中的基本组件。然而，由于其众所周知的优点，它们在各种设备上的最重要的作用还伴随着对其建模和控制的困难和限制。降压转换器自然会受到非线性，时间依赖性，噪声和参数变化的影响。总而言之，由于难以提供完整的描述模型，因此通常使用线性逼近，将这些负担委托给可靠的控制器。推导传统模型（以及由此产生的控制器）时，将简单的电阻视为转换器的负载。非阻性负载实际上需要修改转换器的模型，为简单起见，许多工作仅处理阻性负载。由于这种现象在实际应用中很少见，因此本工作着重于电阻感应变化的负载。鲁棒的控制器设计能够应对负载变化，因此避免了级联或分层方法，从而实现了低阶单回路控制器。通过对实际电路组件模型进行仿真测试来提供建议书验证，该模型包含在Simulink的Simscape™库中。

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