Model Predictive Control under Open-Circuit Fault in a 3-phase Open-end Winding Permanent Magnet Synchronous Motor

The development of the aircrafts with electric and hybrid electric powertrain requires increase in reliability of the propulsion drives. One of the promising solution is the use of open-end winding machines and multiphase motors which are capable to produce the referenced torque in case of partial failures. This paper considers 3-phase open-end winding permanent magnet synchronous motor operated under open circuit fault. The use of model predictive control solves the problem of optimal current regulation as the cost function can minimize the ohmic losses together with delivering referenced torque to the propeller. The design of the control system for the faulty conditions is presented and simulation results shows that the model predictive control can be effectively used in such applications.