| Summary: | 碩士 === 國立聯合大學 === 電機工程學系碩士班 === 103 === In this thesis, the principle of equivalent-input-disturbance (EID) is used for the controller design of dc-dc power converters. The proposed control design provides salient regulation performance with effective rejection of load disturbance. This approach involves building an observer-based disturbance estimator to generate an additional compensating control input which is account for counteracting external disturbance.
By using only output voltage feedback, the EID control algorithm is applied to the controller design for the two types of dc-dc power converters: buck converter and boost converter. As these two power converters, buck converter and boost converter, belong to the categories of minimum phase and non-minimum phase systems, respectively, two different EID methodologies are adopted to design respective voltage regulator.
The MATLAB/SIMULINK SimPowerSystems toolbox is used to first validate the applicability of the proposed design. Subsequently, the proposed controllers are digitally realized on a TMS320F28335 micro-controller and tested on laboratory prototypes. Experimental results are provided to further evidence the effectiveness of the proposed ripple-free controllers. The results of classical proportional-integral controllers are also included to demonstrate the superiority of our design.
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