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A medium-speed torque compensation method and device for a two-phase hybrid stepping motor

A torque compensation, stepper motor technology, applied in the control of electromechanical transmission, control of generators, motor control, etc., can solve the problems that affect the operation of the system, the output torque of the motor is not large enough, and the output voltage is not effectively compensated. Achieve the effect of expanding the application range and large output torque

Active Publication Date: 2021-09-24
深圳市杰美康机电有限公司
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Problems solved by technology

In this scheme, the angle is estimated from the rotor angle, and the speed is obtained by differentiation; the application of differentiation will amplify the noise signal and affect the operation of the system
[0005] Moreover, the output voltage of the existing hybrid stepping motor has not been effectively compensated, resulting in insufficient motor output torque

Method used

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  • A medium-speed torque compensation method and device for a two-phase hybrid stepping motor
  • A medium-speed torque compensation method and device for a two-phase hybrid stepping motor
  • A medium-speed torque compensation method and device for a two-phase hybrid stepping motor

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Embodiment Construction

[0047] The specific embodiments of the present invention are further described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0048] Such as figure 1 As shown, the medium-speed torque compensation method for a two-phase hybrid stepping motor provided in this embodiment adds a medium-speed torque compensation algorithm to the traditional motor control current loop. The traditional motor control current loop is common knowledge in the field, and will not be repeated here.

[0049] Such as figure 1 , figure 2 As shown, in this embodiment,...

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Abstract

The invention provides a medium-speed torque compensation method and device for a two-phase hybrid stepping motor. The invention firstly observes the induced electromotive force, calculates the induced electromotive force in the stationary coordinate system according to the input voltage and input current, and then calculates the induced electromotive force in the stationary coordinate system according to the The induced electromotive force performs phase angle modulation and voltage compensation simultaneously. During the phase angle modulation, the rotational speed is solved according to the induced electromotive force and the torque constant in the stationary coordinate system, and then the torque ripple is extracted, so as to solve the medium-speed torque compensation angle and correct the motor phase angle; no need to use a band-pass filter, To expand the scope of application, a differentiator is not introduced, so that the noise signal is not amplified, and the interference to the system is avoided. At the same time, according to the induced electromotive force in the stationary coordinate system, the medium-speed torque compensation voltage is used to compensate the output voltage, and the effective voltage on the coil at medium speed is increased to increase the output torque of the motor.

Description

technical field [0001] The invention belongs to the technical field of motor torque compensation, and in particular relates to a method and device for medium-speed torque compensation of a two-phase hybrid stepping motor. Background technique [0002] In practical application, the stepper motor is the executive component of the servo system, so the design of the stepper motor pays more attention to the precise positioning and large torque generation. In the design of the stator and rotor, both have a salient pole structure and there will be small teeth on the poles, resulting in a large space harmonic in the air gap magnetic field, resulting in relatively large torque ripple and speed fluctuation of the motor. It is easy to generate noise and cause oscillation. In order to solve this problem, people in the industry have conducted many studies. [0003] For example, Application No. 200910110021.8 discloses "Hybrid Stepping Motor Rotor Rotation Oscillation Suppression Device...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P8/18H02P21/13H02P21/14H02P21/18
CPCH02P8/18H02P21/13H02P21/14H02P2203/09H02P21/18
Inventor 罗清伟李信锋王申相
Owner 深圳市杰美康机电有限公司
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