Model Predictive Control of Quasi-Z Source Three-Phase Four-Leg Inverter

Bayhan S., Abu-Rub H.

41st Annual Conference of the IEEE-Industrial-Electronics-Society (IECON), Yokohama, Japonya, 9 - 12 Kasım 2015, ss.362-367 identifier identifier

  • Cilt numarası:
  • Doi Numarası: 10.1109/iecon.2015.7392126
  • Basıldığı Şehir: Yokohama
  • Basıldığı Ülke: Japonya
  • Sayfa Sayıları: ss.362-367


This paper presents a model predictive control (MPG) scheme for quasi-Z source (qZS) three-phase four-leg inverters. In order to cope with drawbacks of the traditional voltage source inverters (VSI)s, the qZS three-phase four-leg inverter topology is proposed in this study. To improve control capability of the controller, the MPG scheme is used. The proposed MPG is based mainly on the discrete-time model of the whole system. The proposed controller handles each phase current independently. As a result of this, the proposed qZS four-leg inverter has fault tolerant capability, for example if one leg fails the others can work normally. Simulation studies were performed to verify the steady-state and transient-state performances of the proposed control strategy under balanced/unbalanced reference currents and load conditions.