基于鲁棒不变流形的DC/DC升压转换系统输出电压跟踪控制器

IEEE Transactions on Systems Man and Cybernetics Part A-Systems and Humans Pub Date : 2021-03-01 DOI:10.1109/TSMC.2019.2899152

Seok‐Kyoon Kim, C. Ahn

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引用次数: 6

摘要

本文提出了一种基于变不变流形的dc/dc升压功率转换系统的鲁棒输出电压跟踪算法。采用系统多变量方法，既考虑非线性又考虑参数不确定性，推导控制律。该方法具有两个特点。首先，构造了可变截止频率算法来自动调整不变量流形，提高了暂态输出电压跟踪性能;其次，引入非线性扰动观测器，使控制律能够指数恢复理想的跟踪性能，而不会在变不变流形中产生任何偏移误差。在一个3kw的dc/dc升压功率转换系统中，实验验证了该技术的性能。

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Robust Invariant Manifold-Based Output Voltage-Tracking Controller for DC/DC Boost Power Conversion Systems

In this paper, a robust output voltage-tracking algorithm is proposed for dc/dc boost power conversion systems based on a variable invariant manifold. A systematic multivariable approach, considering not only nonlinearity but also the parametric uncertainties, is used for deriving the control law. The proposed method has two features. First, a variable cut-off frequency algorithm is constructed to automatically adjust the invariant manifold, improving the transient output voltage-tracking performance. Second, nonlinear disturbance observers are introduced to enable the control law to exponentially recover the desirable tracking performance without any offset errors in the variable invariant manifold. The performance of the proposed technique is experimentally confirmed with a 3-kW dc/dc boost power conversion system.

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来源期刊

IEEE Transactions on Systems Man and Cybernetics Part A-Systems and Humans 工程技术-计算机：控制论

自引率

0.00%

发文量

审稿时长

6.0 months

期刊介绍： The scope of the IEEE Transactions on Systems, Man, and Cybernetics: Systems includes the fields of systems engineering. It includes issue formulation, analysis and modeling, decision making, and issue interpretation for any of the systems engineering lifecycle phases associated with the definition, development, and deployment of large systems. In addition, it includes systems management, systems engineering processes, and a variety of systems engineering methods such as optimization, modeling and simulation.