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improved sliding-mode control for tracking global maximum power of triple-series-parallel ladder photovoltaic arrays under uneven shadowing

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Clean Energy 2024年第5期8卷 54-72页

作者： Rama Koteswara Rao Alla Kandipati Rajani Ravindranath Tagore Yadlapalli EEE Department RVR&JC College of EngineeringGunturAndhra Pradesh-522019India EEE Department Vignan’s Lara Institute of Technology&ScienceGunturAndhra Pradesh-522213India

This paper presents an innovative way to enhance the performance of photovoltaic(PV)arrays under uneven shadowing *** study focuses on a triple-series–parallel ladder configuration to exploit the benefits of increased power generation while ad-dressing the challenges associated with uneven *** proposed methodology focuses on the implementation of improved sliding-mode control technique for efficient global maximum power point ***-mode control is known for its robustness in the presence of uncertainties and disturbances,making it suitable for dynamic and complex systems such as PV *** work employs a comprehensive simulation framework to comment on the performance of the suggested improved sliding-mode control strategy in uneven shadowing *** analysis has been done to show the better effectiveness of the suggested method than the traditional control *** results demonstrate a remarkable enhancement in the tracking accuracy of the global maximum power point,leading to enhanced energy-harvesting capabilities under challenging environmental ***,the proposed approach exhibits robustness and adaptability in mitigating the effect of shading on the PV array,thereby increasing overall system *** research contributes valuable insights into the development of advanced control strategies for PV arrays,particularly in the context of triple-series–parallel ladder configurations operating under uneven shadowing *** short narrow shading conditions,the improved sliding-mode control method tracks the maximum power better compared with perturb&observe at 20.68%,incremental-conductance at 68.78%,fuzzy incremental-conductance at 19.8%,and constant-velocity sliding-mode control at 1.25%.The improved sliding-mode control method has 60%less chattering than constant-velocity sliding-mode control under shading conditions.

关键词： improved sliding-mode control PV array global maximum power point series-parallel boost converter

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