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一种两阶段变步长最大功率点控制策略

, PP. 161-166

Keywords: 光伏,两阶段变步长,最大功率点跟踪

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Abstract:

对光伏电池板的数学模型及其输出功率与占空比的函数关系进行分析,提出了一种两阶段变步长最大功率点跟踪策略。利用Matlab/Simulink仿真软件建立了基于状态方程的光伏系统仿真模型。通过仿真对比分析了扰动观测法、模糊控制策略、变步长控制策略和两阶段变步长控制策略,仿真结果表明两阶段变步长有良好的快速性和稳定性。最后搭建硬件实验平台,实验结果验证了所提控制策略的正确性。

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