Method, computer program and apparatus for controlling a multiphase rotating field electric machine

A technology of rotating field and rotating direction, which is applied in control system, motor control, vector control system, etc. It can solve the problems of reverse rotation of rotor and failure to identify it.

Active Publication Date: 2022-01-07
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, if problems arise in the measurement of the rotor position, these may not be recognized and may lead to undesired motor behavior and, in the worst case, reversal of the direction of rotation of the rotor
But traditional methods for estimating the rotor position can only be used during the fault-free operation of the motor

Method used

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  • Method, computer program and apparatus for controlling a multiphase rotating field electric machine
  • Method, computer program and apparatus for controlling a multiphase rotating field electric machine
  • Method, computer program and apparatus for controlling a multiphase rotating field electric machine

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Embodiment Construction

[0067] Various embodiments are now described in more detail with reference to the accompanying drawings in which some embodiments are shown. The thickness dimensions of lines, layers and / or regions may be shown exaggerated in the figures for clarity.

[0068] In the following description of the drawings showing only some exemplary embodiments, the same reference numerals may denote the same or similar components. Furthermore, generalized reference signs may be used for those components and objects that appear multiple times in the embodiments or figures but are commonly described with respect to one or more features. Components or objects described with the same or general reference signs can be designed identically with regard to single, multiple or all features, such as their specifications, but can also be designed differently if necessary, as long as the description does not express or imply otherwise out.

[0069] Although the embodiments may be modified or changed in d...

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Abstract

The invention relates to a method, computer program and device for controlling a multiphase rotating field motor. A method (200) for controlling a multiphase rotating field electric machine when current flow to at least one phase of the rotating field electric machine is interrupted includes receiving (220) control parameters for controlling the rotating field electric machine and a direction of rotation of a rotor. The method (200) also includes calculating (230) position parameters corresponding to a plurality of possible rotor positionings of the rotor on the basis of the control parameters. Additionally, the method (200) includes deriving (240) the actual rotor positioning on the basis of the position parameters and the direction of rotation.

Description

technical field [0001] The following embodiments relate to the field of methods and devices for controlling a multiphase rotating field electric machine when the current of at least one phase of the rotating field electric machine is interrupted. Background technique [0002] To convert electrical energy into kinetic energy, so-called rotating field machines or three-phase machines, as well as other types of electric motors are used. A rotating field machine may comprise a stator with an annular arrangement of phases that can generate a time-varying magnetic field and thus enable a magnetic rotor, eg a mover with permanent magnets, in rotation. Rotating field motors, such as permanent magnet synchronous motors (PSM or PMSM) or asynchronous motors (ASM), are used in different applications, such as in hybrid vehicles, electric vehicles, servo drives, machine tools, etc. Fault conditions that may occur while the motor is running, such as phase loss, may require controlled oper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/16H02P27/08H02P29/028H02P29/02
CPCH02P6/16H02P27/08H02P29/025H02P21/18
Inventor 哈桑·拉姆萨埃尔
Owner ROBERT BOSCH GMBH
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