Title:
METHOD FOR OPERATING AN AT LEAST GENERATOR-OPERABLE ELECTRIC MOTOR AND MEANS FOR THE IMPLEMENTATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/012360
Kind Code:
A3
Abstract:
The invention relates to a method (100) for controlling an at least generator-operable, multi-phase electric motor (1), the phase connections thereof (U–Y) being connected in an active rectifier bridge (2) to a first direct current connection (B-) respectively by means of first current valves (UL - YL) which can be controlled and which can be activated and deactivated, and to a second direct current connection (B+) by means of second current valves (UH–YH). Said method consists of, when the electric motor (1) is operated by a generator, after the occurrence of a load shedding, initiating and canceling multiple phase short circuits of the phase connections (U–Y) by means of the first current valves (UL–YL). According to the invention, a variable characterising an individual frequency of the electric motor (1) and the first current valves (UL - YL) are controlled to a switching frequency for introducing and interrupting the phase short-circuits, based on the variable characterizing the individual frequency of electric motor (1).
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Inventors:
MEHRINGER PAUL (DE)
Application Number:
PCT/EP2015/066396
Publication Date:
April 21, 2016
Filing Date:
July 17, 2015
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
International Classes:
H02P9/00; H02P3/22; H02P9/10; H02P29/024
Domestic Patent References:
| WO2013065512A1 | 2013-05-10 |
Foreign References:
| EP2706657A1 | 2014-03-12 | |||
| DE102009046955A1 | 2011-05-26 | |||
| DE102006003254A1 | 2007-07-26 | |||
| DE4038301A1 | 1991-06-06 |
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