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A motor control method and electronic device

A motor control and resistance technology, applied in the electronic field, can solve the problems of many adjustable parameters, high difficulty, and large real-time motor control current error

Active Publication Date: 2018-12-25
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present application provides a motor control method and electronic equipment, which are used to solve the problems in the prior art that the real-time motor control current obtained by using the existing adaptive control method has a large error, and because there are many adjustable parameters to be determined , a difficult technical problem in the process of program regulation and control

Method used

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  • A motor control method and electronic device
  • A motor control method and electronic device
  • A motor control method and electronic device

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Experimental program
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Embodiment 1

[0062] Please refer to figure 1 , Embodiment 1 of the present application provides a motor control method, including:

[0063] Step 101: Obtain the first direct axis current i output by the reference model of the motor on the direct axis d The second direct axis current i output on the direct axis with the adjustable parameter model of the motor d ’ between the first difference e d , the first quadrature axis current i output by the reference model on the quadrature axis q The second quadrature axis current i output on the quadrature axis with the adjustable parameter model q ’ between the second difference e q .

[0064] The reference model of the motor can refer to a set of various parameters in the motor in actual operation, specifically, it can include the direct-axis current value of the motor, the quadrature-axis current value, the back electromotive force constant value of the motor, the direct-axis inductance value of the motor, Motor quadrature axis inductance v...

Embodiment 2

[0109] Please refer to figure 2 , Embodiment 2 of the present application provides an electronic device, including:

[0110] The sensor 201 is used to obtain the first direct axis current i output by the reference model of the motor on the direct axis d and the first quadrature axis current i output by the reference model on the quadrature axis q ;

[0111] Processor 202, configured to obtain the first direct axis current i output by the reference model of the motor on the direct axis d The second direct axis current i output on the direct axis with the adjustable parameter model of the motor d ’ between the first difference e d , the first quadrature axis current i output by the reference model on the quadrature axis q The second quadrature axis current i output on the quadrature axis with the adjustable parameter model q ’ between the second difference e q , based on the first difference e d and the second difference e q Obtain the second resistance R' and the seco...

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Abstract

The invention discloses a motor control method and electronic equipment. The motor control method comprises the following steps: obtaining a first difference value ed between a current id output on a direct-axis by a reference model of a motor and a current id' output on the direct-axis by an adjustable parameter model of the motor and a second difference value eq between a current iq output on a q-axis by the reference model and a current iq' output on the q-axis by the adjustable parameter model, thus obtaining resistance R', DC inductance Ld', AC inductance Lq' and a counter electromotive force constant K'e in the adjustable parameter model in the motor; and then further judging whether the obtained resistance R', DC inductance Ld', AC inductance Lq' and counter electromotive force constant K'e in the adjustable parameter model in the motor meet preset conditions close to corresponding actual parameters of the motor or not, thus finally determining control parameters meeting an actual operation state through determining less control parameters. The method has the technical effects of improving motor control precision and improving motor control efficiency.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a motor control method and electronic equipment. Background technique [0002] At present, the traditional permanent magnet synchronous brushless DC motor control method generally uses fixed parameters to control the motor. For the motor inductance, in the prior art, the motor manufacturer can provide the discrete data of the change of the motor inductance with the current, and then use methods such as the least square method for curve fitting to obtain the algebraic equation of the change of the motor inductance with the current. Then, during the operation of the motor, the real-time direct-axis inductance L of the motor is continuously obtained according to the current change d with quadrature axis inductance L q , used to control the operation of the motor. However, these data are usually the preset premise data given by the manufacturer's pre-test and the preset contro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/22H02P6/182
CPCH02P6/182
Inventor 陈跃刘启武唐婷婷陈搏
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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