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Method and device for acquiring motor stator parameters

A technology of a motor stator and an acquisition method, which is applied to control electromechanical transmission devices, control generators, motor generator control, etc. Complexity, the effect of improving calculation accuracy

Inactive Publication Date: 2020-04-03
BORGWARD AUTOMOTIVE CHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] At least some embodiments of the present invention provide a method and device for obtaining motor stator parameters, so as to at least solve the technical problems of high operational complexity and poor accuracy of the motor stator parameter obtaining methods provided in the related art

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  • Method and device for acquiring motor stator parameters
  • Method and device for acquiring motor stator parameters

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Embodiment Construction

[0031] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a method and a device for acquiring motor stator parameters. The method comprises the following steps: injecting a voltage signal into a motor through matlab model simulation to obtain an equivalent circuit corresponding to an internal circuit of the motor; and analyzing the equivalent circuit to obtain a feedback current signal, and obtaining the stator resistance of the motor according to the voltage signal and the current signal and / or obtaining the stator inductance of the motor according to the current signal. According to the invention, the technical problems of high operation complexity and poor accuracy of a motor stator parameter acquisition mode provided in the prior art are solved.

Description

technical field [0001] The present invention relates to the field of electric vehicles, in particular to a method and device for acquiring stator parameters of a motor. Background technique [0002] At present, many parameters involved in the motor controller algorithm are usually based on the parameters of the motor. When the motor needs to be replaced, the parameters involved in the motor controller algorithm need to be re-matched. For example, the resistance, inductance, flux linkage and other parameter values ​​of the motor need to be manually re-measured and imported, thus increasing the measurement difficulty and work error rate. At the same time, in view of the fact that most motor parameters are measured statically, and most parameters in the motor are affected by factors such as the environment and current, resulting in large static measurement errors, the manual measurement and import process requires a great deal of time. Manpower and material resources, and it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/14
CPCH02P21/14
Inventor 刘春苹
Owner BORGWARD AUTOMOTIVE CHINA CO LTD
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