Analysis of the multi-drive powered permanent magnet synchronous motor under drive fault conditions

The paper deals with analysis of operation under fault conditions of the permanent magnet synchronous motor (PMSM) supply systems composed of a number of 3-phase drives. The considered 3 test PMSM differ in number of phases of supply system and arrangement of the windings. The elaborated field models of these motors have been used to determine the electromagnetic torque and unbalanced magnetic pull force waveforms under the drive fault conditions. The selected results of simulations have been presented and discussed.