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Method, device and driver for starting a stepping motor

A technology of stepping motors and starting devices, applied in the direction of motor generator control, electrical components, control systems, etc., can solve problems such as motor stop or reverse, excitation magnetic field mismatch, regardless of the stop position of stepping motors, etc. Achieve the effects of reducing motor stall or reverse, eliminating angle error, and improving starting accuracy and dynamic accuracy

Active Publication Date: 2017-10-24
BEIJING RUNKE GENERAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] In view of this, the embodiment of the present invention provides a stepping motor starting method, device and driver to solve the existing method of starting a stepping motor, which does not consider the current stop position of the stepping motor, which may cause The mismatch between the rotor angle of the stepping motor and the excitation field of the stator causes the motor to stall or reverse

Method used

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  • Method, device and driver for starting a stepping motor
  • Method, device and driver for starting a stepping motor
  • Method, device and driver for starting a stepping motor

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Embodiment Construction

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061] figure 2 The flow chart of the method for starting the stepper motor provided by the embodiment of the present invention, the method can be applied to the driver, and the driver can be used to drive the stepper motor to work, refer to figure 2 , the method can include:

[0062] Step S100, determining the current mechanical angle corresponding to the stop position of the stepper motor;

[0063] Optionally, when the stepper motor is used for pointing ...

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Abstract

Embodiments of the present invention provide a method, device, and driver for starting a stepping motor, wherein the method includes: determining the current mechanical angle corresponding to the stop position of the stepping motor; Angle correspondence, determining the target mechanical angle corresponding to the electrical zero position corresponding to the current mechanical angle, wherein one electrical zero position corresponds to one mechanical angle; determining the angle difference between the current mechanical angle and the target mechanical angle; according to The angle difference determines the stator winding current of the stepping motor at the stop position; the stepping motor is driven to start with the determined stator winding current. The invention can effectively eliminate the angle error in the starting process of the motor, improve the starting precision and dynamic precision, and improve the operating efficiency of the motor.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a method, device and driver for starting a stepping motor. Background technique [0002] A stepper motor is a device that can convert electrical pulse signals into angular displacement or linear displacement. The stepper motor can rotate a fixed angle in a set direction according to a pulse signal sent by the driver. This angle is called the step angle. In order to improve the control accuracy of the stepper motor, the mainstream stepper motor drive control technology adopts the micro-step drive control method. The micro-step drive control method is a phase winding current closed-loop control method that tracks a given current waveform. By controlling the stepper motor The current of each phase in the excitation winding enables the current to have multiple stable intermediate states between zero current and maximum current, thereby generating a synthetic magnetic field vector, rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P8/08
Inventor 王康
Owner BEIJING RUNKE GENERAL TECH
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