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Stepping motor control method and device, equipment and storage medium

A technology of stepper motor and voltage control, applied in the direction of motor generator control, AC motor control, control of electromechanical transmission devices, etc., can solve the problem of poor control accuracy of stepper motor, and achieve the effect of improving control accuracy

Active Publication Date: 2021-10-01
深圳市杰美康机电有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a control method, device, equipment and storage medium of a stepping motor, aiming at solving the technical problem of poor control precision of the stepping motor in the prior art

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  • Stepping motor control method and device, equipment and storage medium
  • Stepping motor control method and device, equipment and storage medium
  • Stepping motor control method and device, equipment and storage medium

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Embodiment Construction

[0056] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0057] refer to figure 1 , figure 1 It is a schematic diagram of the structure of the control device of the stepper motor in the hardware operating environment involved in the solution of the embodiment of the present invention.

[0058] Such as figure 1 As shown, the stepper motor control device may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The n...

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Abstract

The invention discloses a stepping motor control method and device, equipment and a storage medium. The method comprises the steps of obtaining a rotor magnetic pole angle of a stepping motor, and determining a stator current phase angle of the stepping motor according to the rotor magnetic pole angle; determining a control phase current according to the stator current phase angle and a given current amplitude; obtaining a current deviation between the control phase current and an actual phase current of the stepping motor, and carrying out PI operation on the current deviation to obtain a control voltage of the stepping motor; and performing PWM modulation on the control voltage according to a preset rule to obtain an output voltage, and controlling the operation of the stepping motor according to the output voltage. According to the invention, the current deviation is determined through the phase current and the actual current of the stepping motor, PI operation is performed on the current deviation to obtain the control voltage, and the control voltage is output to control operation of the stepping motor after PWM modulation is performed on the control voltage, so that the technical problem of poor control precision of the stepping motor in the prior art is solved, closed-loop control of the stepping motor is realized, and the control precision of the stepping motor is improved.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to a control method, device, equipment and storage medium of a stepping motor. Background technique [0002] The currently commonly used five-phase stepper motor drivers are all open-loop controlled. This five-phase open-loop drive system mainly controls the rotation of the motor by the driver receiving a given signal. [0003] The open-loop five-phase open-loop drive system controls the speed and position of the motor rotation completely determined by the given signal. The driver cannot detect the actual speed and position of the motor, and cannot obtain the electrical angle of the motor rotation, and cannot realize the closed-loop control of the current phase angle. , the drive can only be controlled open-loop by a given electrical angle, and the given electrical angle cannot guarantee the maximum output of the motor, so this five-phase open-loop drive system will have the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P8/00H02P8/20H02P8/12H02P21/00H02P21/22H02P25/02
CPCH02P8/00H02P8/20H02P8/12H02P21/0003H02P21/22H02P25/02
Inventor 罗清伟王申相
Owner 深圳市杰美康机电有限公司
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