| 摘要 |
A method of determining parameters of an induction motor comprises: applying a first voltage to an induction motor system for a first time period, then applying a second (different) voltage for a second time period and analysing the transient current behaviour during the said periods to determine parameters of the induction motor. The parameters determined may include stator resistance, leakage inductance, magnetising inductance, rotor resistance, magnetising current and the voltage lost in associated power control semiconductors. The transient current curve characteristics over the voltage step periods mentioned above may be analysed to derive the above mentioned parameters. Various current, voltage and resistance inter-relationships are used to determine these paramenters. |
