Full digital control and application of high power synchronous motor drive with dual stator winding fed by cycloconverter

This paper presents air-gap flux-oriented vector control based on pseudo 12-pulse noncirculating current cycloconverter-fed dual stator winding synchronous motor (DSSM) drive for high power and low speed application. The dual stator winding salient pole synchronous motor with damper winding model is discussed. The feedforward decoupling control method and proportional-integral (PI) separate controller of stator current regulation has been used. The DSSM drive for mine hoist is implemented using a multiprocessor digital controller. Experimental results are presented.