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Abstract
This article proposes a modular state-space modeling framework for grid-connected voltage-source converters, where the different control loops, including the ac current control, the phase-locked loop, the dc-link voltage control, and the ac voltage magnitude control, can be modeled separately as building blocks. Moreover, the mathematical relationship between state-space models in the rotating (dq-) frame and the stationary (αβ-) frame is explicitly established, and, thus, the modal analysis can be performed directly in the αβ-frame, which allows intuitive interpretation of voltage and current oscillation modes in the αβ-frame. Experimental tests of a 3-kW back-to-back converter system validate the effectiveness of the unified modular state-space modeling and analysis.
Original language | English |
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Article number | 8978525 |
Journal | I E E E Transactions on Power Electronics |
Volume | 35 |
Issue number | 9 |
Pages (from-to) | 9700-9715 |
Number of pages | 16 |
ISSN | 0885-8993 |
DOIs | |
Publication status | Published - Sept 2020 |
Keywords
- Component connection method (CCM)
- Frequency coupling
- Sensitivity analysis
- State-space model
- Stationary frame
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Dive into the research topics of 'Unified Modular State-Space Modeling of Grid-Connected Voltage-Source Converters'. Together they form a unique fingerprint.Projects
- 1 Finished
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Multi-Timescale Stability of Modular Cascaded Power Electronic Systems
01/05/2017 → 30/04/2020
Project: Research