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中文摘要：
提出1种非线性内阻抗的线性化处理方法。基于动态等效阻抗误差的概念,论述动态等效阻抗适配的工程意义;阐述动态等效阻抗误差控制的有效性。根据等效阻抗适配思想,构造出数字实现的光伏发电最大功率点跟踪（maximum power point tracking,MPPT）自寻优控制系统结构和算法。最后的实验结果证明,与几种经典MPPT控制算法相比,动态等效阻抗匹配控制算法具有更明显的优点。
英文摘要：
A new method which can linearize the nonlinear internal impedance was proposed.Based on the concept of dynamic equivalent impedance error,the engineering significance of dynamic equivalent impedance matching and the validity of dynamic equivalent impedance error control method were discussed.According to the thought of equivalent impedance matching,the self-optimizing maximum power point tracking（MPPT） control structure and algorithm in the photovoltaic power generation were developed,which can be achieved by digital.The experimental results show that the dynamic equivalent impedance matching algorithm has more obvious advantages,compared with the classic MPPT control algorithms.
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