Alternative Sphere Decoding Algorithm for Long-horizon Model Predictive Control of Multi-level Inverters

The computational burden associated with long-horizon finite control set Model Predictive Control remains a challenging problem in power electronic systems with short sampling intervals. In an attempt to address this problem and enable real-time applications, we introduce an alternative Sphere Decoding Algorithm which utilizes matrix block processing and offline preprocessing to support the online optimization process. The expected performance of the algorithm is presented here in the form of MATLAB© simulations together with real-time simulations, run on an OPAL5600© real-time simulator.

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