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Method and device for controlling or regulating a permanently excited synchronous machine

A synchronous motor, permanent technology, applied in control systems, current controllers, motor control, etc., can solve problems such as high implementation costs

Active Publication Date: 2019-11-12
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The conversion of the stator-related variables into rotor-related variables and vice versa is computationally intensive and leads to high implementation complexity

Method used

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  • Method and device for controlling or regulating a permanently excited synchronous machine
  • Method and device for controlling or regulating a permanently excited synchronous machine
  • Method and device for controlling or regulating a permanently excited synchronous machine

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Embodiment Construction

[0019] Refer below figure 1 with figure 2 To illustrate an exemplary embodiment of the present invention, figure 1 with figure 2 The control device according to the invention or the regulator according to the invention is shown as an example. The features disclosed according to the device should also be regarded as disclosed in the method, and vice versa. To simplify the description, the same or similar devices, components and quantities are figure 1 with figure 2 The same reference numerals are provided in.

[0020] figure 1 A device 18 for controlling a permanently excited synchronous motor 50 is shown. The control device includes a conversion device 10, a control data-retrieving device 30 and a control device 32. The conversion device 10 is designed to convert, for example, the setpoint torque value M_soll and the detected rotor speed value N_ist received by the controller into setpoint-polar coordinate values ​​{U_soll on the basis of a predetermined transformation...

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Abstract

The invention relates to a method for controlling or regulating a permanently excited synchronous machine (50), comprising the steps of: receiving a nominal torque value (M_soll) and detecting a rotor speed value (N_ist) of the synchronous machine; On the basis of the given transformation assignment (10, 11, 12), the received rated torque value and the detected rotor speed value are transformed into rated-polar coordinate values ​​(U_soll, Phi_soll); in the rated-polar coordinate The control data items (SD_U, SD_V, SD_W) are ascertained from the predefined control data table ( 30 ) on the basis of the values ​​(U_soll, Phi_soll); and the synchronization is controlled on the basis of the ascertained control data items The electrical machine is energized so that in its steady state the synchronous machine produces a rated torque corresponding to the rated torque value.

Description

Technical field [0001] The invention relates to a method and device for controlling or regulating a permanently excited synchronous motor. Background technique [0002] The prior art discloses a vector adjustment or field orientation adjustment of a permanently excited synchronous motor. Here, the amount related to the rotor in the vector diagram having the d component and the q component orthogonal thereto is supplied to the regulator as an adjustment balance. By applying an adjustment algorithm, the regulator determines the rotor-related adjustment amount on the basis of this rotor-related adjustment difference. The diagram of the quantities related to the rotor in the d / q-system corresponds to the diagram of these quantities in a Cartesian coordinate system as the rotor rotates. However, in order to directly control the energization of the synchronous motor, a quantity related to the stator is necessary. In addition, the phase current of the synchronous motor can be detecte...

Claims

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Application Information

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IPC IPC(8): H02P23/14H02P6/28
CPCH02P23/14H02P2207/05H02P6/28
Inventor M.格拉布斯
Owner ROBERT BOSCH GMBH