Identification of Harmonic Order Effective in Neutral Power Losses by Matrix Pencil Method

Document Type : Power Article

Authors

1 Iran University of Science and Technology

2 Iran University of Science & Technology

3 Iran University of Science & Technology

Abstract

In recent years, using power electronic equipment in residential and office buildings, commercial complexes, manufacturing unit's loads such as heating, lighting, domestic appliances have significantly increased. Since, most of them are single-phase with variable load pattern, LV power systems are imbalanced and harmonic polluted. The presence of harmonics in imbalance power systems can generate vital problems such as excessive neutral current losses and costs. Therefore, a detailed study into these systems is essential. In this paper, instantaneous neutral power is used as an indication of identifying imbalances in low voltage systems. By applying Matrix Pencil Method to instantaneous neutral power, and based on the rules introduced, the harmonics that have contributions in unbalancing of the system are found. According to this result and according to another set of proposed rules, the loads that affect power losses are identified in order to be switched between phases and, further, to optimize the loss in neutral conductor.

Keywords

Main Subjects

References

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Journal of Modeling in Engineering
Volume 17, Issue 58
October 2019
Pages 159-170

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History

  • Receive Date: 14 July 2018
  • Revise Date: 05 February 2019
  • Accept Date: 08 May 2019

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