Study of Voltage-Dependent Harmonic Characteristics of Residential Appliances

Jinia Roy, Barry Mather

Research output: Contribution to conferencePaperpeer-review

4 Scopus Citations


This paper focuses on the electrical characteristics of residential and domestic appliances and their effects to the power grid. With the ever-changing load landscape and the introduction of power electronics-based equipment and energy-efficient loads, it is increasingly important to have a thorough knowledge of their power quality and harmonic characteristics in addition to conventional load models. This is critical to the accurate load representations, particularly for the complete bottom-up load models, in voltage stability assessment, determining possible interactions at harmonic frequencies, the effect of the system impedance, as well as possible voltage sag and swell and unbalance conditions. For this study, the household appliances are grouped into five categories: lighting, power electronics, resistive, motor, and aggregated loads. The effect of the voltage variation on the load current characteristics is also studied. The results from laboratory experiments involving most of the commonly used domestic appliances are analyzed within a range of +10%/-5% of the nominal supply voltage and within a range of +/-3 Hz of the nominal supply frequency.

Original languageAmerican English
Number of pages6
StatePublished - 6 Mar 2019
Event2019 IEEE Texas Power and Energy Conference, TPEC 2019 - College Station, United States
Duration: 7 Feb 20198 Feb 2019


Conference2019 IEEE Texas Power and Energy Conference, TPEC 2019
Country/TerritoryUnited States
CityCollege Station

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

NREL Publication Number

  • NREL/CP-5D00-72817


  • displacement power factor
  • Distortion power factor
  • harmonic analysis
  • load modeling
  • power factor
  • residential loads
  • total harmonic distortion


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