Moisture Ingress Models of Film Capacitors in PV Inverters

Research output: NRELPresentation


This presentation discusses the methodology for developing moisture ingress models for components inside a PV inverter. This method uses time series-based analyses for moisture ingress unlike a single maximum temperature, humidity, and voltage setpoint used in Hallberg-Peck equations. Experiments were performed for determination of moisture ingress time to estimate moisture ingress in and out of the capacitor device under normal and extreme temperatures and RH conditions.
Original languageAmerican English
Number of pages19
StatePublished - 2022

Publication series

NamePresented at the 2022 Power Electronics and Energy Conversion Workshop, 23-24 August 2022

NREL Publication Number

  • NREL/PR-5D00-83914


  • film capacitors
  • moisture ingress
  • PV inverters


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