WEAK MAGNETIC FIELD VECTOR CONTROLLER AND MODULE OF PERMANENT MAGNET SYNCHRONOUS MOTOR

摘要

PPROBLEM TO BE SOLVED: To provide a weak magnetic field vector controller and a module of a permanent magnet synchronous motor for achieving a high-accuracy/fast-response/high-stability motor torque control in a weak magnetic field region. PSOLUTION: A q-axis current instruction value is modified by a product of a d-axis current instruction value (or a current detection value) calculated by the weak magnetic field control and a sinusoidal signal of a phase error as deviation between reference axes of the control and a motor. PCOPYRIGHT: (C)2007,JPO&INPIT