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Integral Terminal Sliding Mode Control Design for Grid-connected Photovoltaic Systems

机译:光伏并网系统的整体终端滑模控制设计

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摘要

This thesis designs a Fuzzy- based Integral Terminal Sliding Mode (FITSMC) control scheme for the MPPT and VSI of a PV array connected the grid. The proposed approach aims at ensuring that the output voltage is in track with the reference voltage generated by the perturb and observe algorithm. This latter ensures maximum power production for the PV system. The proposed FITSMC eliminates the voltage drag and keeps the output voltage of the MPPT control in track with the reference voltage in a relatively brief time. Its implementation to the VSI control ensures the mitigation of deep voltage sags that arise due to high fluctuations in the load. The performance of the proposed approach is assessed using the SPR-305E-WHT-D PV array structure and further compared to that of a standard SMC. Based on the obtained results, we can assess that the proposed FITSMC ensures finite time convergence of the error to zero and proper mitigation of disturbances and grid faults.
机译:本文针对连接电网的光伏阵列的MPPT和VSI设计了基于模糊的积分终端滑模(FITSMC)控制方案。所提出的方法旨在确保输出电压与扰动和观察算法生成的参考电压保持一致。后者确保了光伏系统的最大发电量。所提出的FITSMC消除了电压拖曳,并在相对较短的时间内使MPPT控件的输出电压与参考电压保持一致。通过对VSI控制的实施,可以减轻由于负载的高波动而引起的深电压骤降。使用SPR-305E-WHT-D PV阵列结构评估了所提出方法的性能,并与标准SMC进行了比较。根据获得的结果,我们可以评估出所提出的FITSMC确保了误差在零时间内的有限收敛,并适当地减轻了干扰和电网故障。

著录项

  • 作者

    Amirineni, Sai Sree Teja.;

  • 作者单位

    University of Louisiana at Lafayette.;

  • 授予单位 University of Louisiana at Lafayette.;
  • 学科 Electrical engineering.
  • 学位 M.S.
  • 年度 2017
  • 页码 72 p.
  • 总页数 72
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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