POWER MEASUREMENT ANALYSIS OF PHOTOVOLTAIC MODULES

摘要

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.

主权项

1. 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.