Digital Predictive Current Control of a Three-Phase Four-Leg Inverter

  title={Digital Predictive Current Control of a Three-Phase Four-Leg Inverter},
  author={Marco Rivera and Venkata Yaramasu and Ana-Maria Llor and Jos{\'e} R. Rodriguez and Bin Wu and Maurice Fadel},
  journal={IEEE Transactions on Industrial Electronics},
While the classical control techniques for three-phase two-level four-leg inverters are based on pulsewidth modulation or 3-D space vector modulation, this paper presents a simple digital current control strategy without the modulation stage. The proposed controller uses the discrete nature of the four-leg inverter and filter to generate the switching states. Using a predictive cost function, the optimal switching state to be applied in the next sampling interval is selected. The proposed… CONTINUE READING
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