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Abstract
Synchronization is a crucial aspect in grid-tied systems, including single-phase photovoltaic inverters, and it can affect the overall performance of the system. Among prior-art synchronization schemes, the Multi Harmonic Decoupling Cell Phase-Locked Loop (MHDC-PLL) presents a fast response under grid disturbances and high accuracy under harmonic distortions. However, major drawbacks of the MHDC-PLL include increased complexity and inaccurate response under non-nominal frequencies, which may occur in practical applications. Thus, this paper proposes strategies to address these issues. At first, a novel re-formulation of an equivalent decoupling cell is proposed for reducing the implementation complexity, and then a frequency adaptive quadrature signal generator for the MHDC-PLL is proposed to enable an accurate response even under non-nominal frequencies. Simulation and experimental results are provided, which show that the proposed synchronization (i.e., the frequency adaptive MHDC-PLL) can achieve a fast and accurate response under any grid disturbance and/or severe harmonic conditions.
Original language | English |
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Title of host publication | Proceedings of the 31st Annual IEEE Applied Power Electronics Conference and Exposition (APEC) |
Number of pages | 8 |
Publisher | IEEE |
Publication date | Mar 2016 |
Pages | 3500-3507 |
ISBN (Print) | 978-1-4673-8394-3, 978-1-4673-8393-6, 978-1-4673-9551-9 |
ISBN (Electronic) | 978-1-4673-9550-2 |
DOIs | |
Publication status | Published - Mar 2016 |
Event | 2016 IEEE Applied Power Electronics Conference and Exposition (APEC) - Long Beach Convention and Entertainment Center, Long Beach, United States Duration: 20 Mar 2016 → 24 Mar 2016 http://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=32616 |
Conference
Conference | 2016 IEEE Applied Power Electronics Conference and Exposition (APEC) |
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Location | Long Beach Convention and Entertainment Center |
Country/Territory | United States |
City | Long Beach |
Period | 20/03/2016 → 24/03/2016 |
Internet address |
Keywords
- Grid-tied inverters
- Harmonic distortion
- Phase locked loop
- Photovoltaics
- Synchronization
Fingerprint
Dive into the research topics of 'A Synchronization Scheme for Single-Phase Grid-Tied Inverters Under Harmonic Distortion and Grid Disturbances'. Together they form a unique fingerprint.Projects
- 1 Finished
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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