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Abstract
Periodic signal controllers like repetitive and resonant controllers have demonstrated much potential in the control of power electronic converters, where periodic signals (e.g., ac voltages and currents) can be precisely regulated to follow references. Beyond the control of periodic signals, ac signal processing (e.g., in synchronization and pre-filtering) is also very important for power converter systems. Hence, this paper serves to unify digital periodic signal filters so as to maximize their roles in power converter systems (e.g., enhance the control of ac signals). The unified digital periodic signal filters behave like a comb filter, but it can also be configured to selectively filter out the harmonics of interest (e.g., the odd-order harmonics in single-phase power converter systems). Moreover, a virtual variable-sampling-frequency unit delay that enables frequency adaptive periodic signal filters is introduced, which can enhance the filtering performance even under non-nominal conditions. Case studies on a digital synchronization system and also a single-phase photovoltaic system have demonstrated the effectiveness of the unified digital periodic signal filters.
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 | 286-291 |
ISBN (Print) | 978-1-5090-5156-4 |
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
- Harmonics
- Digital periodic signal controllers
- Repetitive controller
- Resonant controller
- Digital filters
- Notch filter
- Comb filter
- Frequency adaptive
- Power quality
- Power converter systems
Fingerprint
Dive into the research topics of 'Unified Digital Periodic Signal Filters for Power Converter Systems'. Together they form a unique fingerprint.Projects
- 2 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
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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