Power Extraction from Photovoltaic Power Sources

Patent Status: 

Patent Filed

Indian Patent Applicaton No: 

1769/DEL/2011

Patent Category: 

Overview: 

A panel mounted power electronic converter interface for coupling solar photovoltaic panels in series where individual panels have dissimilar characteristics/generation.

Key Features: 

  • A unidirectional power electronic interface module for coupling solar panels or equivalent current sources in series.
  • Each module comprises a cascade boost and buck converter creating a common stiff dc link.
  • The boost converter ensures appropriate terminal voltage across the solar photovoltaic panel. The buck converter ensures that the voltage of the common dc link is maintained constant under all conditions.
  • Output stages of each module, and not individual panels, are connected in series.
  • In-built fault protection, bypass arrangements.

Applications: 

  • Solar photovoltaic farms, rooftop solar photovoltaic application.

 

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