Controllers 1 DC control 1 Direct current control 1 Electric impedance measurement 1 Electric machine control 1 Fast Fourier transforms 1 Fifth harmonics 1 Fifth-harmonic injection 1 Harmonic analysis 1 Harmonics injection 1 Maximum torque 1 Maximum torque per peak current control 1 Peak current control 1 Permanent magnets 1 Permanent magnets synchronous machines 1 Six-phase 1 Six-phase permanent-magnet synchronoi machine Stators 1 Synchronous motors 1 Torque 1 Torque enhancement 1 Two term control systems 1 fifth-harmonic injection 1 maximum torque per peak current (MTPPC) control 1 six-phase PMSM 1 torque enhancement 1