Optimal Switching Sequence MPC of a Three-Port-Converter for Variable-Speed PMSM with Hybrid Energy Storage

This paper presents a Model Predictive Current Control strategy utilizing Optimal Switching Sequences for two-level, three-port converters (2L-TPC) driving an anisotropic Permanent Magnet Synchronous Machine (PMSM). These converters are attractive in hybrid energy systems, including Fuel Cell Electr...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2024-12, p.1-11
Main Authors: Rubio, Felipe, Pereda, Javier, Mora, Andres, Rojas, Felix
Format: Article
Language:English
Subjects:
Anisotropic
Control systems
Current control
Energy storage
Hybrid Energy Storage Systems
Model Predictive Control
Multi-Port Converters
Optimal Switching Sequence
Permanent Magnet Synchronous Machine
Rotors
Switches
Torque
Trajectory
Transient analysis
Vectors
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Summary:This paper presents a Model Predictive Current Control strategy utilizing Optimal Switching Sequences for two-level, three-port converters (2L-TPC) driving an anisotropic Permanent Magnet Synchronous Machine (PMSM). These converters are attractive in hybrid energy systems, including Fuel Cell Electric Vehicles (FCEVs) and Hybrid Energy Storage Systems (HESS). The proposed control method optimally calculates the switching vectors and duty cycles for both steady-state and transient conditions, including during over-modulation, a scenario that introduces significant optimization challenges. The strategy proposes a simple second stage of control to govern the dc port current, exploiting the redundancy of passive vectors, and eliminating the need for weighting factors to balance the control objectives between the PMSM and the energy storage system, giving absolute priority to the control of the PMSM. Experimental results on a laboratory-scale prototype demonstrate the controller high-dynamic performance in regulating torque, speed, and power transfer across multiple ports, while also maintaining a fixed switching frequency and a well-defined harmonic spectrum.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2024.3521504