Method for adjusting speed of stepping motor in load state

A stepping motor, speed adjustment technology, applied in the direction of motor generator control, electrical components, control systems, etc., can solve the problems of low starting speed, braking limit, etc.

Inactive Publication Date: 2015-03-18
O NET COMM (SHENZHEN) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the braking process of the motor with a carrier, when the mass of the carrier exceeds the load range, the torque M to be overcome is large, and the starting speed n will be very low; at the same time, because the maximum speed of different types of motors is different, there is a requirement for starting speed The carrier braking of the

Method used

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  • Method for adjusting speed of stepping motor in load state
  • Method for adjusting speed of stepping motor in load state
  • Method for adjusting speed of stepping motor in load state

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Embodiment Construction

[0013] The method for adjusting the speed of a stepping motor under load according to the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] The present invention uses a frequency conversion adjustment method to adjust the relationship between the quality of the motor carrier, the signal frequency F for driving the motor, and the carrier displacement speed, thereby increasing the carrier displacement speed of the motor with the carrier.

[0015] Taking the two-phase stepping motor in the above background technology as an example, the operation method of frequency conversion regulation will be described in detail as follows. In the adjustment process, choose to use frequency conversion adjustment to accelerate the stepper motor according to the actual time used, where F max Set to the maximum starting frequency of the stepper motor itself.

[0016] Use the feedback system to calculate the...

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Abstract

The invention provides a method for adjusting speed of a stepping motor in a load state. Relation between the mass of a motor carrier and start signal frequency and carrier displacement speed of a driving motor is adjusted by a frequency-changing adjusting method. The method is characterized by comprising the following steps that at first, the step number Dn required to step by the stepping motor is calculated, and within the range that the stepping motor steps for D1 steps, stepping motor pulse is provided according to frequency F1 to brake a carrier; within the range that the stepping motor continuously steps for D2 steps, stepping motor pulse is provided according to frequency F2 to brake the carrier; by parity of reasoning, within the range that the stepping motor steps for Dm steps, stepping motor pulse is provided according to frequency Fmax to brake the carrier. The problem on the requirement on speed limitation required when the actual using time T0 is greater than time limit T is solved.

Description

technical field [0001] The invention belongs to the technical field of stepping motors, in particular to a method for adjusting the speed of a stepping motor under load. Background technique [0002] Stepping motor is one of the key products of mechatronics, widely used in various automation control systems. With the development of microelectronics and computer technology, the demand for stepper motors is increasing day by day, and they are used in various national economic fields. [0003] A stepper motor is an actuator that converts electrical pulses into angular displacement. In layman's terms: when the stepper driver receives a pulse signal, it drives the stepper motor to rotate a fixed angle (that is, the step angle) in the set direction. The angular displacement can be controlled by controlling the number of pulses, so as to achieve the purpose of accurate positioning; at the same time, the speed and acceleration of the motor rotation can be controlled by controlling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P8/14
Inventor 黄土新李连城林庆龙
Owner O NET COMM (SHENZHEN) LTD
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