Effects of Harmonic Distortions on the Accuracy of Energy and Power Losses Measurements in a Water Treatment Industry

N. Nayusrizal, Indira Untari, Andi Aulia Putra, Chairul Hudaya

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

Harmonic distortions in electric power system are the main power quality concerns, mostly generated by nonlinear loads such as Variable Frequency Drive (VFD). A water treatment industry usually utilizes VFD to control their water pump motors during the operation. In this study, we investigated the effects of harmonic distortion resulted from VFD on the measurement accuracy in the distribution system operated by state-owned electric utility. The results showed that the VFD that employed the pulse width modulation (PWM) technique has adjusted the supply frequency of 50 Hz into specific number to control the speed of motors. Data recorded on energy meter for seven days exhibited the THDV of 3.27% and THDI of 36.37%. We found that the harmonic distortion has caused the energy measurement error of 1.2%, and this becomes potential losses for the utility because it could not be charged to customers due to the government tariff regulation.

Original languageEnglish
Title of host publication2019 IEEE 2nd International Conference on Power and Energy Applications, ICPEA 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages277-281
Number of pages5
ISBN (Electronic)9781728115962
DOIs
Publication statusPublished - 1 Apr 2019
Event2nd IEEE International Conference on Power and Energy Applications, ICPEA 2019 - Singapore, Singapore
Duration: 27 Apr 201930 Apr 2019

Publication series

Name2019 IEEE 2nd International Conference on Power and Energy Applications, ICPEA 2019

Conference

Conference2nd IEEE International Conference on Power and Energy Applications, ICPEA 2019
Country/TerritorySingapore
CitySingapore
Period27/04/1930/04/19

Keywords

  • accuracy of energy measurement
  • harmonic distortion
  • power losses
  • variable frequency drive

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