Estimating Power Losses due to Harmonics in Power Distribution System Components

Authors

  • Payam Tavakoli Electrical Engineering British Columbia Institute of Technology Burnaby, Canada
  • Ali Palizban Electrical Engineering British Columbia Institute of Technology Burnaby, Canada
  • Constantin Pitis Director ELEN-MECH Consulting Inc. Vancouver Canada

DOI:

https://doi.org/10.12974/2311-8741.2024.12.04

Keywords:

Energy, Engineering, Harmonics, Motors, Power quality, power losses, Transformers

Abstract

This paper addresses the urgent need for accurate estimation of power losses caused by harmonics in various components of power distribution systems (PDS). Current methodologies for evaluating such losses in electrical distribution grids (EDG) are underdeveloped, highlighting the necessity for more refined analytical approaches. To address this gap, a mathematical model was developed to quantify harmonic-induced losses across key PDS components, with a focus on dry-type distribution transformers (DDTs). Expected accuracy range for estimating methodology was Class 2 accuracy range according to AACE1. Mathematical model was validated by using pre-existent tests performed on a 250 kVA DDT.

Power losses of DDTs are especially significant because these components play a critical role in power system efficiency and revenue generation. In the commercial and industrial sectors, approximately 50% of electricity passes2 through DDTs, of which 40% of DDT efficiency is affected by harmonic losses [2]3. As electrification and electric vehicle adoption grow, these losses are expected to increase. By identifying components most affected by harmonics, the model enables targeted mitigation strategies, potentially saving 600 GWh annually and reducing power losses by 70 MW4 [3].

The paper concludes with a guide to the use of the proposed mathematical model for the estimation of Harmonic Power Losses and Applicable PDS Components (Appendix C).

Proposed mathematical model offers consultants, engineers and end-users a practical tool to improve transformer sizing, implement energy-saving measures, and enhance the efficiency and reliability of PDS. The outcomes support stakeholders, including utilities and customers, by reducing operational costs, extending equipment lifespans, and improving energy efficiency. The findings are a useful tool for government organizations and utilities in refining their energy efficiency programs and standards.

References

Index Mundi https://www.indexmundi.com/g/g.aspx?c=ca&v=81

Pejovski D. et all “Impact of different harmonic loads on distribution transformers” Elsevier Procedia Engineering https://www.sciencedirect.com/science/article/pii/S1877705817342352

Project Proposal Form CSA C802.5: 16 (R2020): Guideline for evaluating the efficiency of dry-type transformers under non-linear loading https://www.csagroup.org/store/product/C802.5-16/

M. J. Ghorbani and H. Mokhtari, “Impact of harmonics on power quality and losses in power distribution systems,” International Journal of Electrical and Computer Engineering (IJECE), vol. 5, no. 1, p. 166, Feb. 2015. https://doi.org/10.11591/ijece.v5i1.pp166-174 DOI: https://doi.org/10.11591/ijece.v5i1.pp166-174

E. Csanyi, “Practical design knowledge in harmonics distortion and Power Factor Correction (PFC),” EEP - Electrical Engineering Portal, https://electrical-engineering-portal.com/harmonics-distortion-power-factor-pfc-practical-design-knowledge#0

D. Jeltsema, “Budeanu’s concept of reactive and distortion power revisited,” 2015 International School on Nonsinusoidal Currents and Compensation (ISNCC), pp. 1-6, Jun. 2015. https://doi.org/10.1109/ISNCC.2015.7174697 DOI: https://doi.org/10.1109/ISNCC.2015.7174697

B. -C. Neagu, G. Grigoras and F. Scarlatache, "Power losses estimation in harmonic polluted LV distribution networks with a fuzzy approach," 2016 8th International Conference on Electronics, Computers and Artificial Intelligence (ECAI), Ploiesti, Romania, 2016, pp. 1-6. https://doi.org/10.1109/ECAI.2016.7861106 DOI: https://doi.org/10.1109/ECAI.2016.7861106

M. Chindris, A. Cziker, and A. Miron, “Software for computation of power in unbalanced and harmonic polluted industrial electric networks,” in Saving energy--just do it!: ECEEE 2007 summer study: Conference proceedings, 2007

B. C. Neagu, G. Grigoraş and F. Scarlatache, "The influence of harmonics on power losses in urban distribution networks," 2016 International Symposium on Fundamentals of Electrical Engineering (ISFEE), Bucharest, Romania, 2016, pp. 1-4. https://doi.org/10.1109/ISFEE.2016.7803184 DOI: https://doi.org/10.1109/ISFEE.2016.7803184

M. Shareghi, B. T. Phung, M. S. Naderi, T. R. Blackburn and E. Ambikairajah, "Effects of current and voltage harmonics on distribution transformer losses," 2012 IEEE International Conference on Condition Monitoring and Diagnosis, Bali, Indonesia, 2012, pp. 633-636. https://doi.org/10.1109/CMD.2012.6416225 DOI: https://doi.org/10.1109/CMD.2012.6416225

E. L. Owen, "A history of harmonics in power systems," in IEEE Industry Applications Magazine, vol. 4, no. 1, pp. 6-12, Jan.-Feb. 1998. https://doi.org/10.1109/2943.644881 DOI: https://doi.org/10.1109/2943.644881

J. Luszcz, ‘High Frequency Harmonics Emission in Smart Grids’, Power Quality Issues. InTech, Apr. 17, 2013. https://doi.org/10.5772/52874 DOI: https://doi.org/10.5772/52874

Mohan G. Use of a Scaling Power Law to Incorporate Asymmetrical Minor Loops in the Inverse Jiles Atherton Model, IET Electric Power Applications, https://www.researchgate.net/publication/336326291_Use_of_a_Scaling_Power_Law_to_Incorporate_Asymmetrical_Minor_Loops_in_the_Inverse_Jiles_Atherton_Model

CSA Group, Commercial Building Energy Data Reporting Best Practices and Requirements https://www.csagroup.org/wp-content/uploads/CSA-Group-Research-Commercial-Building-Energy-Data-Reporting-Best-Practices-and-Requirements.pdf

CSA C838 – 13 (2022) Energy efficiency test methods for three-phase variable frequency drive systems https://www.csagroup.org/store/product/2421778/

ABB, Technical Guide No. 6: Guide to Harmonics and Interharmonics in the Power System, 3AFE64292714 Rev F. Available: https://library.e.abb.com/public/bc35ffb4386c4c039e3a8ec20cef89c5/Technical_guide_No_6_3AFE64292714_RevF_EN.pdf

Electrical Apparatus Service Association (EASA) and the Association of Electrical and Mechanical Trades (AEMT), “The Effect of Repair/Rewinding on Motor Efficiency – EASA/AEMT Rewind Study,” https://www.theaemt.com/resource/revisited-the-effect-of-repairs-on-motor-efficiency.html#:~:text=The%20most%20recent%20study%2C%20conducted%20in%202019%2C%20by,unaffected%20by%20a%20repair%20using%20good%20practice%20procedures.

ANSI, ANSI C57.110-1998: IEEE Recommended Practice for Establishing Transformer Capability When Supplying Nonsinusoidal Load Currents. American National Standards Institute, 1998.

R. Hasegawa, Energy Efficiency of Amorphous Metal-Based Transformers, Metglas, Inc., Oct. 2004. Available: https://ieeexplore.ieee.org/abstract/document/970354/figures#figures

Bart Verhelst et al., "Derating method for dry-type power transformers based on current distortion parameters," EELAB/Lemcko, Ghent University – Belgium, Available: https://www.cired-repository.org/server/api/core/bitstreams/f1ec03c4-0cb1-449d-95bd-6cd7c3974e20/content

M. Digalovsky et al., "Impact of current high order harmonic to core losses of three-phase distribution transformer," EUROCON 2013 IEEE, Available: https://www.researchgate.net/publication/261159122_Impact_of_current_high_order_harmonic_to_core_losses_of_three-phase_distribution_transformer. https://doi.org/10.1109/EUROCON.2013.6625181 DOI: https://doi.org/10.1109/EUROCON.2013.6625181

Electrical Engineering XYZ, "Transformer Magnetic Flux Density," Available: https://www.electricalengineering.xyz/transformer-magnetic-flux-density/.

J. Kartigeyan and M. Ramaswamy, "Effect of Steel Lamination on Core Losses in Switched Reluctance Motors," International Journal of Electrical Engineering & Technology (IJEET), vol. 7, no. 6, pp. 64-74, Nov.–Dec. 2016. [Online]. Available: http://iaeme.com/Home/issue/IJEET?Volume=7&Issue=6

M. G. Say, Alternating Current Machines. New York: Wiley, 1978. https://openlibrary.org/books/OL3168643M/Alternating_current_machines

IEEE Std: C57.110-1998 - IEEE Recommended Practice for Establishing Transformer Capability When Supplying Non-sinusoidal Load Currents https://ieeexplore.ieee.org/document/754767

Steinmetz, C: “On the Law of Hysteresis” American Institute of Electrical Engineers Transactions, vol. 9, pp. 344,1892, http://edlab.wdfiles.com/local--files/pionering-papers/Steinmetz_1892.pdf

Popescu M. et al. “Laminated Steel and Minimum-Effort Modelling in and Industrial Design Environment” IEEE - IAS 42nd Annual Meeting Oct 2007. https://www.researchgate.net/publication/4280969_On_the_Physical_Basis_of_Power_Losses_in_Laminated_Steel_and_Minimum-Effort_Modeling_in_an_Industrial_Design_Environment. https://doi.org/10.1109/07IAS.2007.14 DOI: https://doi.org/10.1109/07IAS.2007.14

Kanalik, A et al. “Calculation of Power Transformer Losses due to Harmonic Current Flow” The 10th International Scientific Symposium ELEKTROENERGETIKA 2019, 16-18. 9. 2019, Stará Lesná, Slovak Republic https://dusan.medved.website.tuke.sk/VEGA/VEGA-1-0372-18/clanky/Kanalik3.pdf

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Published

2024-12-29

How to Cite

Tavakoli, P. ., Palizban, A. ., & Pitis, C. . (2024). Estimating Power Losses due to Harmonics in Power Distribution System Components. Journal of Environmental Science and Engineering Technology, 12, 28–41. https://doi.org/10.12974/2311-8741.2024.12.04

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