Abstract
Grid background harmonics may be amplified, propagate through a long distribution feeder and even lead to power system instability. In this paper, harmonic propagation
issue is investigated and mitigation of the harmonics is analyzed by using transmission line theory which has already been applied in power systems. It is demonstrated that a specific harmonic will not be amplified if the feeder’s length is less than one quarter of the harmonic wavelength meanwhile the terminal impedance is less than characteristic impedance. Besides, three scenarios will be considered in accordance with the relationship between the feeder’s length and harmonic wavelength. Harmonic suppression
control strategies will be respectively designed considering 5th and 7th harmonics coexisting in the distribution line. Finally, a simulation study has been performed to verify the theoretical analysis and demonstrate the effectiveness of the proposed strategy.
issue is investigated and mitigation of the harmonics is analyzed by using transmission line theory which has already been applied in power systems. It is demonstrated that a specific harmonic will not be amplified if the feeder’s length is less than one quarter of the harmonic wavelength meanwhile the terminal impedance is less than characteristic impedance. Besides, three scenarios will be considered in accordance with the relationship between the feeder’s length and harmonic wavelength. Harmonic suppression
control strategies will be respectively designed considering 5th and 7th harmonics coexisting in the distribution line. Finally, a simulation study has been performed to verify the theoretical analysis and demonstrate the effectiveness of the proposed strategy.
| Original language | English |
|---|---|
| Title of host publication | IECON 2016: The 42nd Annual Conference of IEEE Industrial Electronics Society |
| Number of pages | 6 |
| Publisher | IEEE Press |
| Publication date | Oct 2016 |
| Pages | 3715 - 3720 |
| ISBN (Electronic) | 978-1-5090-3474-1 |
| DOIs | |
| Publication status | Published - Oct 2016 |
| Event | 42nd Conference of the Industrial Electronics Society, IECON 2016: 42nd Annual Conference of the IEEE Industrial Electronics Society - Palazzo dei Congressi, Florence, Italy Duration: 24 Oct 2016 → 27 Oct 2016 http://www.iecon2016.org/?jjj=1471434927195 http://www.iecon2016.org/ |
Conference
| Conference | 42nd Conference of the Industrial Electronics Society, IECON 2016 |
|---|---|
| Location | Palazzo dei Congressi |
| Country/Territory | Italy |
| City | Florence |
| Period | 24/10/2016 → 27/10/2016 |
| Sponsor | IEEE Industrial Electronics Society (IES), Institute of Electrical and Electronics Engineers (IEEE) |
| Internet address |
Keywords
- Virtual impedance
- Distributed generation
- Harmonic damping