Computationally Efficient Cascaded Optimal Switching Sequence MPC for Grid-Connected Three-Level NPC Converters
| Autor: | Roberto Cardenas-Dobson, Felipe Donoso, Ricardo P. Aguilera, Andres Mora, Jose Rodriguez, Alejandro Angulo |
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| Rok vydání: | 2019 |
| Předmět: |
Electrical & Electronic Engineering
Sequence Computer science 020208 electrical & electronic engineering 02 engineering and technology Converters Grid law.invention Harmonic analysis Capacitor Model predictive control Harmonic spectrum Control theory law Capacitor voltage 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering |
| Zdroj: | IEEE Transactions on Power Electronics. 34:12464-12475 |
| ISSN: | 1941-0107 0885-8993 |
| DOI: | 10.1109/tpel.2019.2906805 |
| Popis: | © 1986-2012 IEEE. In this work, a model predictive control (MPC) strategy based on optimal switching sequence (OSS) concepts is proposed for a grid-connected three-level neutral-point clamped converter. The proposed cascaded-OSS-MPC strategy does not require a weighting factor to balance the dc-link capacitor voltages and optimally controls both the grid currents and the capacitor voltages even during disturbances and large step changes in the references. The resulting MPC strategy allows operating the converter with a predefined harmonic spectrum, fixed switching frequency, and fast and robust dynamic response. Besides, an efficient optimization algorithm is also introduced to reduce the computational burden typically observed in this kind of MPC strategies. Experimental and simulation results are provided to demonstrate the effectiveness and high-quality performance of the proposed strategy. |
| Databáze: | OpenAIRE |
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