Fig. 5

(a) The phase current, the phase voltage, and the back-EMF curves at the charging and discharging modes, (b) the current peak of i q at the charging and discharging modes, (c) the current peak of i d at the charging and discharging modes.

(a) The phase current, the phase voltage, and the back-EMF curves at the charging and discharging modes, (b) the current peak of i q at the charging and discharging modes, (c) the current peak of i d at the charging and discharging modes.