{HEAD ~ The phase shift means} is arranged to adjust {TAIL ~ the phase angle} of all the remaining phases by the same predetermined angle to maximize the torque ripple free power output of the synchronous electrical machine 
is arranged to adjust
{ HEAD ~ The phase shift means } is arranged to adjust { TAIL ~ the phase angle } of all the remaining phases by the same predetermined angle to maximize the torque ripple free power output of the synchronous electrical machine
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH