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Economic impacts of power electronics on electricity distribution systems

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  • Duarte, Carlos Henrique
  • Schaeffer, Roberto

Abstract

To achieve more efficient energy use, power electronics (PEs) may be employed. However, these introduce nonlinear loads (NLLs) into the system by generating undesired frequencies that are harmonic in relation to (multiples of) the fundamental frequency (60 Hz in Brazil). Consequently, devices using PEs are more efficient but also contribute significantly to degradation of power quality. Besides this, both the conventional rules on design and operation of power systems and the usual premises followed in energy efficiency programs (without mentioning the electricity consumed by the devices themselves) consider the sinusoidal voltage and current waveforms at the fixed fundamental frequency of the power grid. Thus, analysis of electricity consumption reductions in energy efficiency programs that include the use of PEs considers the reduction of kWh to the final consumer but not the additional losses caused by the increase in harmonic distortion. This article contributes to a better understanding of this problem by reporting the results of a case study of the ownership and use of television sets (TV sets) to estimate the economic impacts of residential PEs on a mainly residential electricity distribution system.

Suggested Citation

  • Duarte, Carlos Henrique & Schaeffer, Roberto, 2010. "Economic impacts of power electronics on electricity distribution systems," Energy, Elsevier, vol. 35(10), pages 4010-4015.
    • Handle: RePEc:eee:energy:v:35:y:2010:i:10:p:4010-4015
    DOI: 10.1016/j.energy.2010.03.037
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    References listed on IDEAS

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    1. Seeto, Dewey & He, Shu-Dong & Woo, Chi-Keung, 1995. "Pricing electric harmonics," Energy, Elsevier, vol. 20(7), pages 617-621.
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    Cited by:

    1. Miranda, Rodolfo Farías & Salgado-Herrera, Nadia Maria & Rodríguez-Hernández, Osvaldo & Rodríguez-Rodríguez, Juan Ramon & Robles, Miguel & Ruiz-Robles, Dante & Venegas-Rebollar, Vicente, 2022. "Distributed generation in low-voltage DC systems by wind energy in the Baja California Peninsula, Mexico," Energy, Elsevier, vol. 242(C).
    2. Kalair, A. & Abas, N. & Kalair, A.R. & Saleem, Z. & Khan, N., 2017. "Review of harmonic analysis, modeling and mitigation techniques," Renewable and Sustainable Energy Reviews, Elsevier, vol. 78(C), pages 1152-1187.
    3. David Lumbreras & Eduardo Gálvez & Alfonso Collado & Jordi Zaragoza, 2020. "Trends in Power Quality, Harmonic Mitigation and Standards for Light and Heavy Industries: A Review," Energies, MDPI, vol. 13(21), pages 1-24, November.
    4. Panzone, Luca A., 2013. "Saving money vs investing money: Do energy ratings influence consumer demand for energy efficient goods?," Energy Economics, Elsevier, vol. 38(C), pages 51-63.
    5. Santiago, I. & López-Rodríguez, M.A. & Gil-de-Castro, A. & Moreno-Munoz, A. & Luna-Rodríguez, J.J., 2013. "Energy consumption of audiovisual devices in the residential sector: Economic impact of harmonic losses," Energy, Elsevier, vol. 60(C), pages 292-301.

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