International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

The Impact of Power Quality on VFD Application in Motor Fan Dust Collector

Abstract

The technology to control the motor speed according to load requirements is variable frequency drive (VFD). The motor fan dust collector operates using a VFD to reduce the speed during idle smelting conditions. In addition to energy efficiency, the power quality of the electrical energy system is important to consider. Non-linear loads from VFDs cause harmonics in the industry that affect electrical power. Power quality measurement and analysis to determine the harmonic and unbalance values of voltage and current are important for improving power quality. This paper discusses the effect of VFDs on power quality, as a real case study, data from existing VFDs in the steel industry are taken to analyze power quality. A large current harmonic of 45% occurs when the VFD decrease the motor speed during idle smelting operation and drops to 5% when the motor speed returns to full speed during smelting operation on. The average maximum current unbalance value is 10.8% and the voltage unbalance is 0.36%, which is still below the standard maximum limit whether the motor is at full or low speed.

Country : Indonesia

1 Sarwo Turinno2 Mochammad Facta3 Cahyadi

  1. Master Program of Energy, School of Postgraduate Studies, Diponegoro University, Indonesia & The National Research and Innovation Agency, Indonesia
  2. Master Program of Energy, School of Postgraduate Studies, Diponegoro University, Indonesia
  3. The National Research and Innovation Agency, Indonesia

IRJIET, Volume 8, Issue 6, June 2024 pp. 37-42

doi.org/10.47001/IRJIET/2024.806005

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