An Improved Digital Algorithm for Boost PFC Converter Operating in Mixed Conduction Mode
| Autor: | N. Lakshmi Narasamma, Harish Sudhakaran Nair |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Computer science Computation 020208 electrical & electronic engineering Energy Engineering and Power Technology 02 engineering and technology Power factor Inductor Model predictive control 020901 industrial engineering & automation Control theory Modulation Harmonics 0202 electrical engineering electronic engineering information engineering Harmonic Electrical and Electronic Engineering |
| Zdroj: | IEEE Journal of Emerging and Selected Topics in Power Electronics. 8:4235-4245 |
| ISSN: | 2168-6785 2168-6777 |
| DOI: | 10.1109/jestpe.2019.2932153 |
| Popis: | This article proposes an improved digital algorithm based on predictive control for the operation of a boost power factor correction (PFC) converter in the mixed conduction mode (MCM). The proposed MCM algorithm comprises of a proposed digital conduction mode detection method, a proposed predictive discontinuous conduction mode (DCM) average current controller, a proposed digital compensation technique in DCM to account for the initial nonzero inductor current during switch turn-on and also a predictive continuous conduction mode (CCM) average current controller. The proposed algorithm flow is computationally efficient with no additional sensor/circuit requirements and ensures low harmonic content in the input current. The proposed MCM algorithm is verified experimentally on a 300-W boost PFC converter hardware prototype for converter operation in MCM, pure DCM, and pure CCM within a half line cycle. The proposed MCM algorithm is evaluated experimentally in terms of current tracking, current harmonics, and computation times. |
| Databáze: | OpenAIRE |
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