| 摘要 |
<p>The invention relating to a method for identifying parameters of asynchronous motor, measures the stator resistance of the motor by using direct-current volt-ampere method, obtains rotor resistance and leakage inductance of the rotor and stator by using short circuit tests, and gains the mutual inductance of the rotor and stator and no-load current by using no-load tests. It advances the precision and the stability of the parameters by compensating to the conductance voltage-drop, on-off time-delay and dead time in frequency conversion speed regulation system. Via the locked-rotor tests at two frequency points, it calculates the rotor resistance at rated slip frequency adopting the two-detector method and obtains the exact value of the rotor resistance overcoming the influence of the skin effect so as to meet the case of the vector control completely.</p> |
