| 摘要 |
<p>A method of controlling a brushless AC motor (3), wherein two power lines (7) supply a direct voltage and direct current (Vdc) (Idc) to a power circuit (8) which supplies the motor (3) with three stator currents (Ia, Ib, Ic), the method providing for sampling the supply voltage and current (Vdc) along one line (7) to reconstruct a vector ( Ia (k), Iß (k) ) relative to the stator current; determining a vector (FluxRa (k), FluxRß (k) ) relative to the rotating rotor flux; calculating the scalar product of the two vectors (FluxRa (k), FluxRß (k) and Ia, Iß) to determine a quadrature error (RT) between the two vectors; determining a compensation angle (fcomp) and/or a compensation voltage (Vcomp) capable of eliminating the quadrature error (RT); and varying a regulating angle (freg) and/or a regulating voltage modulus (Vreg) for supply to the motor (3), as a function of the compensation angle (fcomp) and/or the compensation voltage (Vcomp) respectively.</p> |
