Robust Control of Interconnected Power Electronic Converters to Enhance Performance in DC Distribution Systems: A Case of Study
| العنوان: | Robust Control of Interconnected Power Electronic Converters to Enhance Performance in DC Distribution Systems: A Case of Study |
|---|---|
| المؤلفون: | David Alejandro Vaca-Benavides, Kevin E. Lucas, Sara J. Ríos, Renan Landau Paiva de Medeiros, Erick Melo Rocha, Daniel J. Pagano, Ronald Garcia-Arcos |
| المصدر: | IEEE Transactions on Power Electronics. 36:4851-4863 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Electric power distribution, business.industry, Computer science, Buck converter, Direct current, Converters, Series and parallel circuits, Bus voltage, Nonlinear system, Robustness (computer science), Control theory, Power electronics, Electrical and Electronic Engineering, Robust control, business, Electrical impedance, Parametric statistics |
| الوصف: | This article presents the design and evaluation of robust controllers, based on linear programming, Kharitonov's theorem and Chebyshev's theorem, in order to enhance the performance of a typical structure of multistage converters present in direct current (dc) systems. In such electric power distribution systems, point-of-load converters act as a constant power load (CPL), which introduces a destabilizing nonlinear effects to their supply bus voltage. The multistage converter system uses a simplified scheme based on a cascaded converter, which is comprised of two dc–dc buck converters in a series connection. The robust controllers evaluated overcome the negative incremental impedance instability problem due to CPL, which causes a high risk of instability in interconnected converters. Thereby, the robust controllers evaluated ensure robust control performance and stability with a minor performance degradation compared to a conventional controller when the cascaded converter system is subjected to parametric uncertainties. The control methodologies evaluated are applied in both dc–dc buck converters. Assessments on the performance of the control methodologies evaluated are conducted. Experimental validations on a 160-W dc–dc cascaded converter system test board are carried out to verify the theoretical claims. |
| تدمد: | 1941-0107 0885-8993 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::a1f434a427d12fbf7c85eeffb67b674a https://doi.org/10.1109/tpel.2020.3019402 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........a1f434a427d12fbf7c85eeffb67b674a |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19410107 08858993 |
|---|