| 摘要 |
PURPOSE:To eliminate the distortion of the armature voltage of a commutatorless motor and prevent the failure in the commutation of an inverter, by detecting a DC voltage proportional to the quadrature-axis component of the armature voltage to control it. CONSTITUTION:The DC voltage V4 proportional to the quadrature-axis component of the armature voltage Va is computed by a quadrature-axis voltage calcultator 138 from a voltage detection signal VF and a signal of a distributor 5. The calculator 138 generates an output signal corresponding to the absolute valure V4 of the DC voltage. An intergrator 130 receives a voltage command signal VR and the DC signal V4 and generates a filed current command IR. |
