No abstract

Considering that so far all studies regarding multiphase drives fault tolerance performance have been carried out making use of conventional two-level inverters, this study discusses the fault tolerance performance of a six-phase drive system based on a dual inverter under single-, two-, or three-phase open-circuit fault. Aiming applications where simplicity and low computation efforts are required and fast dynamic response is not imperative, an open-loop volts/hertz (V/f) compensation strategy is discussed in order to keep the rated operation even after the occurrence of the fault, assuring the maintenance of sinusoidal flux. The six-phase machine mathematical model after the fault is detailed and utilised to elaborate the compensation strategy. Simulation and experimental results show the validity of the discussed solution and its feasibility.

No abstract

No abstract

No abstract