Long-Horizon Sequential FCS-MPC Approaches for Modular Multilevel Matrix Converters
- Publisher:
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Publication Type:
- Journal Article
- Citation:
- IEEE Transactions on Industrial Electronics, 2024, 71, (5), pp. 5137-5147
- Issue Date:
- 2024-05-01
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Filename | Description | Size | |||
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Long-Horizon_Sequential_FCS-MPC_Approaches_for_Modular_Multilevel_Matrix_Converters.pdf | Published version | 5.53 MB |
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The modular multilevel matrix converter (M3C) is a direct ac-ac power converter that presents several features such as scalable and flexible structure, high efficiency, fault-tolerant capability, and high power quality. However, this converter requires a complex control strategy to govern the cluster currents and balance the internal floating capacitor voltages among clusters and cells. To fulfill these requirements, this article proposes a long-horizon sequential finite-control-set model predictive control (sFCS-MPC). The resulting predictive strategy is formulated to perform both the local cell balancing control and to regulate cluster currents of the M3C in a unified control algorithm, considering the nonlinear and coupled dynamic model of each cluster. Additionally, the total available combinations and the average cell switching frequency are reduced. The proposed sFCS-MPC is implanted for a prediction horizon from one to four, and compared with some previous FCS-MPC approaches. Experimental results on a 3-kW prototype are provided to demonstrate the effectiveness and high-quality performance of the proposed strategy.
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