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光伏系统的零均值电导增量最大功率点跟踪控制 被引量:68

Zero Average Incremental Conductance Maximum Power Point Tracking Control for Photovoltaic System
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摘要 光伏系统的最大功率点跟踪控制可以最大限度地得到光伏模块产生的直流电能,将其转化为交流电能后输送到电网,因此成为提高光伏并网发电系统效率的研究热点。提出一种零均值电导增量最大功率点跟踪控制方法。该方法既具有传统电导增量最大功率点跟踪控制方法的优点,减小了最大功率点附近的振荡,比干扰观测法更加精确;同时该算法不依赖系统模型,对干扰具有较强的鲁棒性,因此可以广泛地应用于实际光伏系统中。仿真及实验结果证明了所提最大功率点跟踪控制算法的高适应性、鲁棒性和有效性。 Maximum power point tracking (MPPT) could deliver the great advantages of solar power to the grid,and significantly increase the overall reliability and conversion efficiency of grid-connected photovoltaic (PV) systems. A zero average incremental conductance (ZA-IncCond) MPPT control algorithm was proposed. The method has the advantages of traditional IncCond MPPT,which eliminates the oscillations around the MPP and tracks the maximum power point voltage more accurately than the PO (perturbation and observation) algorithm. ZA-IncCond MPPT algorithm is stability against interferes and not sensitive to system models,which could be available and widely used in practical MPPT systems. A 200 W grid-connected PV system prototype was built in a lab. Simulation and experimental results verified the effectivity of the proposed MPPT method.
出处 《中国电机工程学报》 EI CSCD 北大核心 2010年第21期48-53,共6页 Proceedings of the CSEE
基金 国家重点基础研究发展计划项目(973项目)(2009CB219700)~~
关键词 太阳能 最大功率点跟踪 零均值电导增量法 光伏并网发电系统 边界误差 solar power maximum power point tracking (MPPT) zero average incremental conductance (ZA-IncCond) grid-connected photovoltaic (PV) system marginal error
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参考文献15

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