Abstract
Four-switch buck-boost converter supports both voltage step-up and step-down functionalities, but it suffers from mode transfer challenge that would need reliable mode detection when designed to operate in multidifferent modes. In this article, a novel control method based on model predictive current control is proposed for such converter with inherent smooth mode transfer capability without extra design on mode detection and transfer scheme. Modulator and mode detection are replaced by an optimization process through cost function. This largely simplifies the design and makes it easily implemented. Seamless transfer between buck and boost modes is achieved with many other system level benefits. Simulation and experimental results are provided to verify the effectiveness of proposed method for the four-switch buck-boost converter.
| Original language | English |
|---|---|
| Article number | 9219154 |
| Pages (from-to) | 9058-9069 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 68 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2021 |
Funding
Manuscript received February 24, 2020; revised June 14, 2020 and August 14, 2020; accepted September 14, 2020. Date of publication October 9, 2020; date of current version June 28, 2021. This work was supported in part by the Fundamental Research Funds for the Central Universities under Grant KG16034501, and in part by the Project funded by the State Key Laboratory of Safety Control and Simulation for Power Systems and Large Power Generation Equipment under Grant SKLD20M05, China. (Corresponding author: Yushan Liu.) Xiao Li and Yushan Liu are with the School of Automation Science and Electrical Engineering, Beihang University, Beijing 100083, China (e-mail: [email protected]; [email protected]).
| Funders | Funder number |
|---|---|
| State Key Laboratory of Safety Control and Simulation for Power Systems and Large Power Generation Equipment | SKLD20M05 |
| Fundamental Research Funds for the Central Universities | KG16034501 |
Keywords
- Buck-boost converter
- model predictive control
- seamless transfer
- voltage regulation