To suppress insulation deterioration caused between turns of a motor winding owing to a surge voltage generated in an inverter-driven motor.
To suppress the above insulation, the present invention determines the optimal rise time for controlling partial discharge occurring between turns of a winding of a motor driven by an inverter, from a relationship between a rise time of a surge voltage and a surge voltage resistance. The optimal reactor capacity is determined from a relationship between the rise time of the surge voltage and inductance of an inserted reactor. A reactor having the optimal capacity is provided between the inverter and the motor winding. The reactor may simply be a reactor around which a wire is wound, an air-core reactor, or the like.
COPYRIGHT: (C)2010,JPO&INPIT
KOMATA TAKESHI
SAITO KOICHIRO
MATSUMOTO OSAMU
OHATA KOJI
| JPH10285879A | 1998-10-23 | |||
| JPH07337033A | 1995-12-22 | |||
| JP2004343832A | 2004-12-02 | |||
| JP4557616B2 | 2010-10-06 | |||
| JP4558089B2 | 2010-10-06 | |||
| JPH10285879A | 1998-10-23 | |||
| JPH07337033A | 1995-12-22 | |||
| JP2004343832A | 2004-12-02 |
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