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Corner detection device and detection method for motor

A technology of corner detection and corner angle application in electromechanical devices, measuring devices, electrical devices, etc.

Inactive Publication Date: 2016-04-13
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These detection methods are applicable to permanent magnet synchronous motors, and less involve the detection method of the rotation angle of DC brushed motors

Method used

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  • Corner detection device and detection method for motor
  • Corner detection device and detection method for motor
  • Corner detection device and detection method for motor

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Embodiment Construction

[0051] The present invention will be further described below in conjunction with accompanying drawing:

[0052] Such as figure 1 As shown, the specific working process of the present invention is: the rotation angle detection module first uses the motor parameters and the motor input voltage, and the current signal collected by the current sensor 3 to calculate the approximate speed of the motor through the DC motor model 1, and use the speed for counting Correction and counter module 2 and adaptive bandpass filter module 5 . After the armature current is collected by the current sensor 3 , the current signal is not only transmitted to the DC motor model 1 , but also transmitted to the preamplifier module 4 to amplify the AC signal and isolate the DC signal. The amplified AC signal is then input to the adaptive bandpass filter 5 for adaptive filtering, and the filtered waveform is a sine wave that changes correspondingly by tracking the change of the motor speed. After outp...

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Abstract

The invention provides a corner detection device and detection method for a motor. The corner detection device for the motor comprises a current sensor, a pre-amplifying module, an adaptive band-pass filter module, a sine wave pulse conversion module and a voltage conversion module, wherein the current sensor, the pre-amplifying module, the adaptive band-pass filter module and the sine wave pulse conversion module are sequentially connected with one another. The detection method provided by the invention comprises four main steps. The corner detection device and detection method have the beneficial technical effects the algorithm is simple in flow and easy to achieve; the structure is simple; the used electronic unit is common and relatively low in cost; and the corner detection device used for a brushed direct current motor which is low in cost and wide in application definitely has good practical value and a broad market prospect once industrialization is achieved.

Description

technical field [0001] The patent of the present invention belongs to the technical field of analysis and measurement control, and in particular relates to a motor rotation angle estimation device designed based on the structural characteristics of the motor, which is especially suitable for the detection of the rotation angle of DC brushed motors and realizes low-cost, high-integration motor rotation angle detection. Specifically The invention relates to a motor rotation angle detection device and a detection method. Background technique [0002] With the development of electronic technology, there are more and more applications of motors in industry. During the use of motors, the motor speed and motor rotation angle are the most concerned. The requirements for the accuracy of the motor rotation angle position and the calculation accuracy of the motor speed are gradually becoming higher. . The patents related to this patent mainly include: patent number ZL200880117106.2, a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/20G01B7/30
CPCG01B7/30
Inventor 赵林峰黄鹤王其东陈无畏张荣芸黄清泉陈久闪申雪
Owner HEFEI UNIV OF TECH