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Control Strategy of Ultrasonic Motor Servo Control System

A technology of servo control system and ultrasonic motor, applied in the direction of electrical testing/monitoring, etc., can solve the problems of difficult torque control and difficult motor control characteristics

Inactive Publication Date: 2016-03-16
MINJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the non-linear output torque of the ultrasonic motor, torque control becomes more difficult, so it is difficult for the motor to obtain better control characteristics in torque servo control

Method used

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  • Control Strategy of Ultrasonic Motor Servo Control System
  • Control Strategy of Ultrasonic Motor Servo Control System
  • Control Strategy of Ultrasonic Motor Servo Control System

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Experimental program
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Embodiment Construction

[0054] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0055] See figure 1 , figure 1 It is a diagram of the control characteristic test device of the traveling wave ultrasonic motor servo control system. The control characteristic test device of the traveling wave ultrasonic motor servo control system includes the motor drive controller and the ultrasonic motor 1 and the DC permanent magnet brushless motor set on their respective supports. 8 and photoelectric encoder 15; the front end output shaft 7 of described ultrasonic motor output shaft 3 and permanent magnet motor is connected through first elastic coupling 4,6; Described first elastic coupling is provided with a torque sensor 5 ; The rear end output shaft 10 of the DC permanent magnet brushless motor and the photoelectric encoder 15 are connected through the second elastic coupling 11,13; the second elastic coupling 11,13 is provided with a magneti...

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Abstract

The invention relates to a control strategy and a control characteristic testing device of a travelling wave type ultrasonic motor servocontrol system. The testing device comprises a motor-driven controller, an ultrasonic motor, a permanent magnet brushless DC motor, and a photoelectric encoder, wherein the ultrasonic motor, the permanent magnet brushless DC motor and the photoelectric encoder are arranged on corresponding brackets respectively; the output shaft of the ultrasonic motor is connected with the front end output shaft of the permanent magnet brushless DC motor through a first elastic coupler; a torque sensor is arranged on the first elastic coupler; the back end output shaft of the permanent magnet brushless DC motor is connected with the photoelectric encoder through a second elastic coupler; a magnetic powder brake is arranged on the second elastic coupler; the motor-driven controller is connected with the control end of the ultrasonic motor, the output end of the photoelectric encoder and the output end of the torque sensor. The control characteristic testing device and the control strategy have the advantages that the structure is simpler; motor loading moment adjustment and synchronous speed / moment measurement can be realized according to testing requirements.

Description

technical field [0001] The invention relates to a control characteristic testing device of a traveling wave type ultrasonic motor servo control system, to be precise, it is a time testing device for the control characteristic of a servo control system of an ironless motor. Background technique [0002] The control characteristic test of the existing traveling-wave ultrasonic motor servo control system is mainly aimed at the control characteristic test of position and speed, and the control characteristic test of torque is less involved. Due to the non-linearity of the output torque of the ultrasonic motor, the torque control becomes more difficult, so it is difficult to obtain better control characteristics in the torque servo control of the motor. [0003] Use this ultrasonic motor servo control system control characteristic test device to simulate fixed and variable loads with DC permanent magnet motors, so that the output torque of the DC permanent magnet brushless motor ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
Inventor 傅平
Owner MINJIANG UNIV
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