负荷变化下Cuk变换器的动态建模与积分滑模控制器设计

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia) Pub Date : 2015-06-01 DOI:10.1109/ICPE.2015.7167824

Byeongcheol Han, Minsung Kim, Sungho Lee, J. S. Lee

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引用次数: 7

摘要

提出了一种固定频率PWM的积分滑模控制器(ISMC)。首先推导了Cuk变换器的四阶模型，并用ISMC进行了简化。在简化系统模型的基础上，设计了由等效控制部分和开关控制部分组成的ISMC，并将其应用于存在不确定变化和未知干扰的Cuk变换器。同时证明了闭环系统是指数稳定的。利用数字控制DC-DC变换器样机进行了仿真和实验测试，验证了所提出的控制方法。

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Dynamic modeling and integral sliding mode controller design for Cuk converter under load variation

A integral sliding mode controller (ISMC) for a fixed-frequency PWM is proposed for the Cuk converter. The fourth-order model of the Cuk converter is derived first and it is simplified to use ISMC. Based on the simplified system model, the ISMC that consists of the equivalent control part plus the switching control part is designed and applied to the Cuk converter in the presence of uncertain variations and unknown disturbances. The closed-loop system is also proved to be exponentially stable. Simulation and experimental tests using the prototype of digitally controlled DC-DC converter were performed to validate the proposed control approach.

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2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)

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