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Automatic calibration method and system for permanent magnet synchronous motor MTPV algorithm, and storage medium

A permanent magnet synchronous motor and automatic calibration technology, which is applied in the aerospace field, can solve problems such as low precision and error-prone human operation, and achieve the effect of solving low precision

Inactive Publication Date: 2020-04-21
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention proposes an automatic calibration method, system and storage medium for the MTPV algorithm of a permanent magnet synchronous motor, aiming to solve the problem that the manual calibration method based on the MTPV algorithm of a permanent magnet synchronous motor in the prior art is not low in accuracy and prone to errors in human operation The problem

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  • Automatic calibration method and system for permanent magnet synchronous motor MTPV algorithm, and storage medium
  • Automatic calibration method and system for permanent magnet synchronous motor MTPV algorithm, and storage medium
  • Automatic calibration method and system for permanent magnet synchronous motor MTPV algorithm, and storage medium

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Embodiment 1

[0044] figure 1 A flow chart of steps of an automatic calibration method for an MTPV algorithm of a permanent magnet synchronous motor according to an embodiment of the present application is shown in FIG.

[0045] Such as figure 1 As shown, the automatic calibration method of the permanent magnet synchronous motor MTPV algorithm in this embodiment specifically includes the following steps:

[0046] S101: Fix the motor speed, adjust the direct axis current ID or the quadrature axis current IQ value of the motor to gradually increase until the voltage utilization rate US value of the motor reaches the set value;

[0047] S102: Record multiple sets of direct-axis current ID values, quadrature-axis current IQ values, and torque values ​​of the motor within the set time period;

[0048] S103: Calculate the average value of the direct-axis current ID, the average value of the quadrature-axis current IQ, and the average value of the torque according to the multiple sets of direct-...

Embodiment 2

[0085] figure 2 A schematic structural diagram of an automatic calibration system for an MTPV algorithm of a permanent magnet synchronous motor according to an embodiment of the present application is shown.

[0086] Such as figure 2 As shown, the automatic calibration system of the permanent magnet synchronous motor MTPV algorithm specifically includes:

[0087] Adjustment data module 10: used to fix the motor speed, adjust the direct axis current ID or quadrature axis current IQ value of the motor to gradually increase until the voltage utilization rate US value of the motor reaches the set value;

[0088] Recording module 20: used to record multiple sets of direct-axis current ID values, quadrature-axis current IQ values, and torque values ​​of the motor within a set period of time;

[0089] Average value calculation module 30: used to calculate the average value of the direct axis current ID, the average value of the quadrature axis current IQ, and the average value of...

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Abstract

The invention provides an automatic calibration method and system for a permanent magnet synchronous motor MTPV algorithm, and a storage medium. According to the automatic calibration method for the permanent magnet synchronous motor MTPV algorithm, the rotating speed of a motor is fixed, the direct-axis current ID or quadrature-axis current IQ value of the motor is adjusted to be gradually increased until the voltage utilization rate US value of the motor reaches a set value; a plurality of groups of direct-axis current ID values, quadrature-axis current IQ values and torque values of the motor in a set time period are recorded; the average value of the direct-axis current ID, the average value of the quadrature-axis current IQ and the average value of torque are calculated; and finally,MTPV algorithm automatic calibration is performed according to the average value of the direct-axis current ID, the average value of the quadrature-axis current IQ and the average value of the torque.Manual calibration is replaced by the automatic calibration method of the permanent magnet synchronous motor MTPV algorithm, and therefore, parameters such as torque and the like and average values can be automatically recorded, and the problem that the manual calibration method is low in precision and efficiency, and prone to causing errors can be solved.

Description

technical field [0001] The present application belongs to the technical field of aerospace, and in particular relates to an automatic calibration method, system and storage medium of an MTPV algorithm of a permanent magnet synchronous motor. Background technique [0002] The inner loop of the control system of the permanent magnet synchronous motor is the current loop, which parses the torque command into current command values ​​ID and IQ in the synchronous rotating coordinate system after receiving the torque command. Generally, the reference current command table IdqMap corresponding to different rotational speeds and different torque commands satisfying MTPA (maximum torque current ratio) / MTPV (maximum torque voltage ratio) control is obtained by calibration on the bench. [0003] The commonly used calibration method of the MTPV algorithm is to manually give the current ID and IQ, and then observe and record the torque value with the naked eye. The recording accuracy is ...

Claims

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Application Information

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IPC IPC(8): H02P21/14H02P21/22
CPCH02P21/14H02P21/22
Inventor 王敬赵广兴王冬徐亚美王飞
Owner WEICHAI POWER CO LTD
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