Abstract
With the increasing penetration of nonlinear loads into distribution system, stable operation of power distribution system suffers challenge by harmonic voltage propagation and resonance amplification which is also known as whack-a-mole phenomenon. However, until now this phenomenon has not been well investigated and discussed. This paper starts from theoretical analysis of harmonic propagation and how it is triggered when DG unit interfaced to the grid. Moreover, harmonic damping performance of various types of impedance seen from DG at selected frequencies are analyzed and compared by introducing microwave transmission line theory. In addition, this paper proposes a control algorithm with DG unit where virtual impedances at selected frequencies are individually designed to mitigate the harmonic amplification. The validity of the control strategy has been verified by the case study results.
Original language | English |
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Title of host publication | Proceedings of 8th Annual IEEE Energy Conversion Congress & Exposition (ECCE), 2016 |
Number of pages | 8 |
Publisher | IEEE Press |
Publication date | Sept 2016 |
Article number | 0751 |
ISBN (Electronic) | 978-1-5090-0737-0 |
DOIs | |
Publication status | Published - Sept 2016 |
Event | 8th Annual IEEE Energy Conversion Congress & Exposition: ECCE 2016 - Milwaukee, WI, United States Duration: 18 Sept 2016 → 22 Sept 2016 http://www.ieee-ecce.org/ |
Conference
Conference | 8th Annual IEEE Energy Conversion Congress & Exposition |
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Country/Territory | United States |
City | Milwaukee, WI |
Period | 18/09/2016 → 22/09/2016 |
Sponsor | IEEE, IEEE Industry Applications Society (IAS), IEEE Power Electronics and Industry Applications Societies (PELS) |
Internet address |
Keywords
- Power quality
- Virtual impedance
- Distributed generation
- Resonance propagation