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Variable sampling period multi-phase predictive controller based on regions
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DOI：10.1016/j.conengprac.2024.106021.png)
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Abstract
En 中文
Multi-phase machines are being proposed in research and industry applications due to their inherent advantages. Finite Control Set Model Predictive Controllers (FCS MPC) constitute a flexible tool to deal with the increased number of phases. However, FCS MPC is computationally demanding, reducing its applicability with fast power converters. Region-based methods for FCS MPC have been recently proposed to reduce the control computation time. However, these methods are still hindered by the use of a fixed application time for the selected voltage. The paper presents a region-based method that uses variable application times. The method achieves fast computation of the voltage vector and its application time. Moreover, the application time can be found with fine resolution unlike previous approaches and without iterations. The proposal is experimentally validated using a laboratory test bench based on a symmetric five-phase induction machine showing improved control results and a reduction in harmonic content.
Keywords:
Multi-phase electric drives
Predictive control
Variable sampling time
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