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A New Method of PV Array Faults Diagnosis in Smart Grid

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  • Ze Cheng
  • Yucui Wang
  • Silu Cheng

Abstract

A new fault diagnosis method is proposed for PV arrays with SP connection in this study, the advantages of which are that it would minimize the number of sensors needed and that the accuracy and anti-interference ability are improved with the introduction of fuzzy group decision-making theory. We considered five “decision makers” contributing to the diagnosis of PV array faults, including voltage, current, environmental temperature, panel temperature, and solar illumination. The accuracy and reliability of the proposed method were verified experimentally, and the possible factors contributing to diagnosis deviation were analyzed, based on which solutions were suggested to reduce or eliminate errors in aspects of hardware and software.

Suggested Citation

  • Ze Cheng & Yucui Wang & Silu Cheng, 2014. "A New Method of PV Array Faults Diagnosis in Smart Grid," Journal of Applied Mathematics, Hindawi, vol. 2014, pages 1-9, July.
    • Handle: RePEc:hin:jnljam:969361
    DOI: 10.1155/2014/969361
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