Extended state observer-based sliding mode control for PWM-based DC-DC buck power converter systems with mismatched disturbances
Extended state observer-based sliding mode control for PWM-based DC-DC buck power converter systems with mismatched disturbances
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DOI：
10.1049/iet-cta.2014.0220
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发表时间：
2015-02-26
影响因子：
2.6
通讯作者：
Li, Qi
中科院分区：
文献类型：
--
作者：
Wang, Junxiao;Li, Shihua;Li, Qi
本文研究了一种基于扩展状态观测器（ESO）的滑模控制（SMC）方法，用于不匹配干扰下基于脉冲宽度调制的DC-DC降压变换器系统。通过设计一种新的滑模流形，结合干扰估计技术，设计了一种基于eso的SMC方法来处理不匹配干扰。并给出了严格的稳定性分析。与标称SMC方法相比，该方法在干扰不满足匹配条件的情况下也具有较好的抗干扰能力。仿真和实验对比结果验证了所提控制方法的有效性。
This study investigates an extended state observer (ESO)-based sliding mode control (SMC) approach for pulse-width modulation-based DC-DC buck converter systems subject to mismatched disturbances. By designing a novel sliding-mode manifold incorporated with a disturbance estimation technique, an ESO-based SMC method is designed to deal with mismatched disturbances. A rigorous stability analysis is also presented. As compared with the nominal SMC method, the proposed method obtains a better disturbance rejection ability even the disturbances do not satisfy the so-called matching condition. Simulations and experimental comparison results are implemented to verify the effectiveness of the proposed control method.