Power measurement analysis of photovoltaic modules
AssigneeTel Solar AG
InventorRalf Adelhelm
Life of this patent
Estimating the term…
Abstract
A method of measuring a current-voltage (IV) characteristic for a photovoltaic (PV) device is described. The method includes providing a PV module for measuring an IV characteristic; exposing the PV module to a solar electromagnetic (EM) spectrum; and acquiring an IV data point on the IV characteristic. The acquisition of an IV data point includes measuring plural IV segments by repetitively applying and sweeping a voltage across the PV module from a unique initial voltage to a target voltage within a time scale for exposing said PV module to the solar EM spectrum, and interpreting a measured current at the target voltage as the IV data point on the IV characteristic if the plural IV segments converge at the target voltage.
Claims15
A method of measuring a current-voltage (IV) characteristic for a photovoltaic (PV) device, comprising:
- providing a PV module for measuring an IV characteristic;
- exposing said PV module to a solar electromagnetic (EM) spectrum;
- performing a first set of measurements that includes acquiring plural IV segments by applying and sweeping a voltage across the PV module beginning from a first series of unique initial voltages and ending at a first target voltage within a pulse plateau for exposing said PV module to said solar EM spectrum;
- and
- measuring and recording a first IV data point on said IV characteristic that includes a first current for said PV module at said first target voltage if convergence of said plural IV segments in said first set of measurements occurs at said first target voltage.
Dependencies are inferred from the claim text.