We present an efficient tool for design analysis of a synchronous reluctance motor (SynRM).We use winding function analysis (WFA) instead of finite-element analysis (FEA).With WFA, parameter sensitivity can be analyzed and the effects of parameters on the machine design can be evaluated very rapidly (under linear condition).We investigated the effect of rotor skewing, stator winding chording, pole arc, and interpolar air-gap length on average torque and torque ripple. We compare the results obtained by WFA with those obtained by 2-D FEA. We show that the two methods give approximately the same results but WFA requires less computation time