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Abstract
The second-harmonic power ripple in single-phase inverter may introduce the issue of low reliability and low power density. In order to replace the bulky dc-link capacitor, an alternative approach is to use active power decoupling so that the ripple power can be diverted into other energy storages. However, the performance of existing active power decoupling methods depends heavily on certain control references, which unfortunately are parameter dependent. In this paper an autonomous reference generation technique is proposed for single phase differential inverter without relying on the system parameters. A unified average switching model is firstly derived for Buck, Buck-Boost and Boost differential inverter, which is apparently have nonlinear characteristics. Then, dual-loop cascading control and a feedback linearization method is employed to design the inner- and outer loop controllers, which are used for realizing an improved power decoupling control, capacitor voltage and inductor current regulation. By substituting the corresponding parameter into unified model, the proposed control loop can be applied to different inverter types (Buck, Buck-Boost and Boost). Finally, detailed laboratory prototype experimental results have been done to verify the effectiveness of this power decoupling method.
Original language | English |
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Title of host publication | Proceedings of the 2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe) |
Number of pages | 10 |
Publisher | IEEE Press |
Publication date | Sept 2015 |
Pages | 1-10 |
Article number | 7311675 |
ISBN (Print) | 978-907581522-1 |
DOIs | |
Publication status | Published - Sept 2015 |
Event | 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 - Centre International de Conférence Genève (CICG), 17 rue Varembé CH . 1211 Genève 20, Geneva, Switzerland Duration: 8 Sept 2015 → 10 Sept 2015 |
Conference
Conference | 17th European Conference on Power Electronics and Applications, EPE-ECCE Europe 2015 |
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Location | Centre International de Conférence Genève (CICG), 17 rue Varembé CH . 1211 Genève 20 |
Country/Territory | Switzerland |
City | Geneva |
Period | 08/09/2015 → 10/09/2015 |
Keywords
- Active power decoupling
- Differential inverter
- Unified average model
- Feedback linearization
- Power control
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Dive into the research topics of 'Power decoupling with autonomous reference generation for single-phase differential inverters'. Together they form a unique fingerprint.Projects
- 1 Finished
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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