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Power Coordination in Variable Speed Drives using Model Predictive Control


F. Rey, P. Hokayem, J. Lygeros

20th IFAC World Congress, pp. 3362-3367, [OC:03751]

Variable speed drives are used to convert power between electricity grids and electric machines. Typically, they are AC-DC-AC power converters consisting of a rectifier, a DC storage capacitor and an inverter. In this paper we use model predictive control (MPC) to coordinate the power flow through the rectifier and the inverter in order to keep the stored DC energy within tight bounds. This enables for variable speed drives with smaller storage capacity that operate close to their physical capabilities. We design an MPC procedure that is tailored to variable speed drives and that accounts for real-time operation aspects. Finally, we compare our approach to conventional proportional-integral (PI) control techniques.


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  title={Power Coordination in Variable Speed Drives using Model Predictive Control},
  author={Rey, Felix and Hokayem, Peter and Lygeros, John},
  booktitle={Preprints of the 20th IFAC World Congress},
 organization={{ETH} Zurich}
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