Control Strategy for Twelve-Phase Permanent-Magnet Synchronous Starter/Generator System

This paper proposes a control strategy for twelve-phase permanent magnet synchronous starter/generator (TP-PMSS/G), which has four sets of three-phase windings to improve the fault tolerance capability and the power density of the system. The mathematical model of the TP-PMSS/G is analyzed. Based on the model, a four d-q coordinates control strategy is proposed in this paper which allows the TP-PMSS/G to work in starting mode and generating mode respectively with low 2
^nd
and 4
^th
order harmonic current. Experimental results are carried out to validate the proposed control strategy.