This article proposes a composite control strategy based on the hyper spiral algorithm for Boost DC-DC converters in photovoltaic power generation systems.Firstly,a current inner loop controller is designed based on the hyper spiral algorithm.Then,a disturbance observer is designed based on the hyper spiral algorithm to estimate disturbances.Finally,a voltage outer loop composite controller is designed based on the disturbance observer and PI controller.This control strategy enables the system to have fast response characteristics and strong anti-interference performance.Finally,a simulation model was built using Matlab/Simulink,and the simulation results showed that the Boost type DC-DC converter control system had good control performance under the proposed composite control strategy.
关键词
Boost型变换器/超螺旋算法/干扰观测器/复合控制器
Key words
boost type converter/hyper spiral algorithm/interference observer/composite controller
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