Improved Model Predictive Control for Asymmetric T-Type NPC 3-Level Inverter
| Autor: | Nho-Van Nguyen, Nam Xuan Doan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Total harmonic distortion
Current load TK7800-8360 Computer Networks and Communications Computer science model predictive control reduced switching Improved algorithm asymmetric inverters Topology (electrical circuits) Model predictive control Hardware and Architecture Control and Systems Engineering Control theory Signal Processing Systems design Inverter Lower cost T-type NPC inverter Electrical and Electronic Engineering Electronics delay compensation |
| Zdroj: | Electronics Volume 10 Issue 18 Electronics, Vol 10, Iss 2244, p 2244 (2021) |
| ISSN: | 2079-9292 |
| DOI: | 10.3390/electronics10182244 |
| Popis: | In this paper, a model predictive control for an asymmetric T-type NPC 3-level inverter is presented. The mathematical model and characteristics of the reduced switching topology are described. An improvement for the predicted strategy with the pre-selected candidate vectors is proposed. The simulation and experimental results are provided and show good efficiency for the proposed control algorithm. The improved algorithm greatly reduces execution time by about 18% and delivers a better load current THD than the conventional model for predictive control. For comparison, similar tests are performed on both 2-level and conventional 3-level inverters. Although the current load quality of the asymmetrical inverter is not as good as the traditional 3-level inverter, it is much better than the 2-level inverter. In addition, it has the benefits of significantly reducing overall costs, simpler hardware system design, and faster predictive processing than the conventional 3-level inverters. Therefore, this asymmetric inverter has advantages for an application with the required output characteristics like the conventional 3-level inverter and with lower cost. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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