| 摘要 |
PURPOSE: Torque ripple reduction logic of a motor is provided to minimize a torque ripple component by compensating electrical angle of a rotor and inductance change for Q shaft current in the output of a PI controller. CONSTITUTION: A Q-shaft PI controller(PIq) recompenses error of a Q-shaft current. A first inductance compensator(13) recompenses Q-shaft inductance in a first Q-shaft control signal. A D-shaft PI controller(PId) recompenses error of a D-shaft current. A second inductance compensator(14) recompenses D-shaft inductance in a first D-shaft control signal. A first counter electro-motive force compensator(11) is electrically connected between the Q-shaft PI controller and the first inductance compensator. A second counter electro-motive force compensator is electrically connected between the D-shaft PI controller and the second inductance compensator. |
