A MPCC-Based Variable Sampling Time Interleaving Method for a Two-Phase Totem-Pole Bridgeless Boost PFC Converter
This paper proposes a Model Predictive Current Control (MPCC) based variable sampling time interleaving method to improve the current shaping ability, power conversion efficiency, power density and current ripple reduction of a two-phase totem pole bridgeless boost power factor correction (PFC) conv...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10258293/ |
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| Summary: | This paper proposes a Model Predictive Current Control (MPCC) based variable sampling time interleaving method to improve the current shaping ability, power conversion efficiency, power density and current ripple reduction of a two-phase totem pole bridgeless boost power factor correction (PFC) converter. The proposed method is based on the Finite Control Set-Model Predictive Control (FCS-MPC) technique, which has the advantage of easily including nonlinear constraints among Model Predictive Control (MPC). However, since ON/OFF of the switch is determined through model-based cost function comparison, the switching frequency is variable and a separate modulator is not used. As a result, it is difficult to apply an interleaving method using a phase shift of a Pulse Width Modulation (PWM) carrier wave in each phase using an existing inductor and switch in two phases. Accordingly, in order to reduce the current ripple, a method of making the switching states of the two phases independent by varying the MPCC sampling time of one phase was proposed. |
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| ISSN: | 2169-3536 |