发明名称 |
METHOD FOR STARTING AN AC MOTOR, STARTER DEVICE AND COMPUTER PROGRAM PRODUCT |
摘要 |
The invention relates to a method of starting an electric motor (10) powered by an alternating power supply voltage, said method consisting of supplying current to the motor (10) with a delay tret, during each period of the power supply voltage. The starting method comprises a first sequence in which the following steps are carried out during each nth period of the power supply voltage, where n is an integer number greater than 0: a) determine the value of a variation of a resistance of the electric motor during the previous n periods of the power supply voltage; b) compare said value of the variation of the determined motor resistance with a first threshold resistance value; c) if the value of the variation of the motor resistance is less than the first threshold value, reduce tret. The invention also relates to a starter device and a computer program. |
申请公布号 |
EP2937988(A3) |
申请公布日期 |
2016.05.25 |
申请号 |
EP20150164515 |
申请日期 |
2015.04.21 |
申请人 |
SCHNEIDER ELECTRIC INDUSTRIES SAS |
发明人 |
DURAND, CHRISTOPHE;PENKOV, DELCHO |
分类号 |
H02P1/04;H02P1/28 |
主分类号 |
H02P1/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|