where is a 1 = isa 1 − ¯isa 1, isb 1 = isb 1 − ¯isb 1, . . . , are the harmonic components of stator currents. Tc, the switching period,is equal to Ts for 6φSVPWM and to 2∗Ts for STPWM.It is demonstrated that after applying the (6 × 6) transformation to stator harmonic currents, (10) becomes
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