Invention Grant
- Patent Title: Method and device for operating an asynchronous machine, and an asynchronous machine
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Application No.: US14901437Application Date: 2014-06-04
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Publication No.: US09641116B2Publication Date: 2017-05-02
- Inventor: Manfred Weiffen
- Applicant: Robert Bosch GmbH
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Michael Best & Friedrich LLP
- Priority: DE102013212054 20130625
- International Application: PCT/EP2014/061525 WO 20140604
- International Announcement: WO2014/206692 WO 20141231
- Main IPC: H02P1/24
- IPC: H02P1/24 ; H02P23/08 ; H02P27/06

Abstract:
The invention relates to a method for operating an asynchronous machine (1) comprising a rotor (3) and a stator (2), in which a torque of the asynchronous machine (1) is adjusted by specifying a desired magnetic flux of a surrounding magnetic field of the stator (2) and specifying a desired slip between a rotational speed of the rotor (3) and the rotational speed of the surrounding magnetic field. According to the invention, at least in the load condition and when a rotary frequency of the surrounding magnetic field of the stator is equal to zero, the desired magnetic flux and/or the desired slip with constant torque is changed in such a way that an actual rotary frequency of the surrounding magnetic field is not equal to zero.
Public/Granted literature
- US20160156298A1 METHOD AND DEVICE FOR OPERATING AN ASYNCHRONOUS MACHINE, AND AN ASYNCHRONOUS MACHINE Public/Granted day:2016-06-02
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