Five-phase hybrid stepping motor control method, device, equipment, medium and product

By adopting a closed-loop control method and a position-speed-current three-ring control structure in a five-phase hybrid stepper motor, the problems of low positioning accuracy and slow dynamic response under the open-loop control mode are solved, and high-precision position control and dynamic response performance are improved.

CN119696441APending Publication Date: 2025-03-25SHENZHEN SYSLAB ELECTRONICS CO LTD
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Patent Information

Application Number
CN202411610300.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The existing five-phase hybrid stepper motor control method mainly adopts open-loop control method, which leads to prone to loss of steps and overshoot when load changes or external interference is large, affecting positioning accuracy and dynamic response performance.

Method used

A closed-loop control method based on position feedback is adopted to establish a three-ring control structure of position-speed-current. By collecting the actual position and current value of the motor in real time, calculating the given and actual speed values, controlling the q-axis current value of the fundamental subspace, realizing accurate control of the motor position, speed and torque.

Benefits of technology

It improves the running accuracy of the five-phase hybrid stepper motor, reduces step loss and position deviation, enhances dynamic response performance, and maintains good control performance under operating conditions with sudden load changes and large external interference.

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Abstract

The invention discloses a five-phase hybrid stepping motor control method and device, equipment, a medium and a product, and relates to the technical field of motor driving control, and the method comprises the steps: firstly, carrying out the position loop control, collecting an actual position value of a motor through a system, comparing the actual position value with a given position value, and adjusting a position error through a controller; secondly, speed ring control is carried out, the given speed and the actual speed are calculated according to the position information, and the speed error is adjusted; and finally, current loop control is carried out, a fundamental wave subspace d-axis current value is calculated based on speed information and an actual current value, and accurate control of a current error is realized. According to the invention, the technical problems of low positioning precision and slow dynamic response in a traditional open-loop control mode are effectively solved, and the target of high-precision position control is achieved. The technical problem of how to improve the operation precision of the five-phase hybrid stepping motor is solved.
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