Projects per year
Abstract
As the penetration level of grid-connected Photovoltaic (PV) systems increases, the power quality is one of the major concerns for system operators and the demands are becoming even stricter. The impact of interharmonics on the grid has been acknowledged in recent research when considering a large-scale adoption of PV inverters. However, the origins of interharmonics remain unclear. Thus, this paper performs tests on a commercial PV inverter to explore interharmonic generation and more important investigates the mechanism of interharmonic emission. The investigation reveals that the perturbation of the Maximum Power Point Tracking (MPPT) algorithm is one of the sources that induce interharmonics in the grid current, especially at low-power operating conditions. Accordingly, three mitigation solutions are discussed to address this issue, and simulations have been carried out to verify the effectiveness of the solutions. Simulation results indicate that the constant-voltage MPPT method is the most suitable solution to the mitigation of interharmonics introduced by the MPPT operation, as it avoids the perturbation in the PV voltage during operation.
Original language | English |
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Title of host publication | Proceedings of the 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) |
Number of pages | 6 |
Publisher | IEEE Press |
Publication date | Jun 2017 |
Pages | 722-727 |
ISBN (Print) | 978-1-5090-5157-1 |
DOIs | |
Publication status | Published - Jun 2017 |
Event | 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) - Kaohsiung, Taiwan, Province of China Duration: 3 Jun 2017 → 7 Jun 2017 |
Conference
Conference | 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) |
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Country/Territory | Taiwan, Province of China |
City | Kaohsiung |
Period | 03/06/2017 → 07/06/2017 |
Keywords
- Photovoltaic (PV) systems
- Inverters
- Maximum power point tracking (MPPT)
- Interharmonics
- Power quality
Fingerprint
Dive into the research topics of 'Interharmonics from Grid-Connected PV Systems: Mechanism and Mitigation'. Together they form a unique fingerprint.Projects
- 3 Finished
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APETT: Advanced Power Electronic Technology and Tools
Blaabjerg, F., Munk-Nielsen, S., Iannuzzo, F., Wang, H., Uhrenfeldt, C., Beczkowski, S. M., Zhou, D., Choi, U., Jørgensen, A. B., Vernica, I., Sangwongwanich, A., Christensen, N., Ceccarelli, L., Nielsen, C. K., Bahman, A. S., Pedersen, K., Pedersen, K. B. & Kristensen, P. K.
01/01/2017 → 30/06/2021
Project: Research
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PV2GRID: A Next-Generation Grid Side Converter with Advanced Control and Power Quality Capabilities
Blaabjerg, F., Yang, Y. & Sangwongwanich, A.
01/01/2015 → 30/09/2017
Project: Research
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HARMONY: HARMONY - Harmonic identification, mitigation and control in power electronics based power systems
Blaabjerg, F., Bak, C. L., Wang, X., Beres, R. N., Kwon, J., Gui, Y., Yoon, C. & Ebrahimzadeh, E.
01/02/2013 → 28/02/2018
Project: Research