| 摘要 |
<p>The method includes the steps of extracting a first signal in which a third harmonic component is dominant and filtering a first signal to generate a second signal which contains only the third harmonic component. Then, integrating the second signal to provide a third signal comprising the time integral of the second signal and communicating the third signal to a controller which controls operation of an inverter. At preselected intervals of operation of the motor, application of current signals to one of the stator windings of the motor is deliberately precluded, a voltage of the respective stator winding is sensed and a fourth signal is generated with information about the back EMF experienced by the respective stator winding. The fourth signal is communicated to the controller.</p> |
