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Control characteristic testing device and control strategy of ultrasonic motor servocontrol system

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

Inactive Publication Date: 2013-10-02
MINJIANG UNIV
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  • Abstract
  • Description
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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 characteristic testing device and control strategy of ultrasonic motor servocontrol system
  • Control characteristic testing device and control strategy of ultrasonic motor servocontrol system
  • Control characteristic testing device and control strategy of ultrasonic motor servocontrol system

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Embodiment Construction

[0055] The present invention will be further described below in conjunction with the drawings and embodiments.

[0056] See figure 1 , figure 1 It is a diagram of the test device for the control characteristics of a traveling wave ultrasonic motor servo control system. The test device for the control characteristics of the traveling wave ultrasonic motor servo control system includes a motor drive controller and an ultrasonic motor 1 and a DC permanent magnet brushless motor set on their respective supports. 8 and the photoelectric encoder 15; the output shaft 3 of the ultrasonic motor and the output shaft 7 of the front end of the permanent magnet motor are connected by the first elastic couplings 4, 6; the first elastic coupling is provided with a torque sensor 5 ; The rear output shaft 10 of the DC permanent magnet brushless motor and the photoelectric encoder 15 are connected by the second elastic coupling 11, 13; the second elastic coupling 11, 13 is provided with a magnetic ...

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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 traveling wave ultrasonic motor servo control system control characteristic test device, to be precise, it is a coreless motor servo control system control characteristic test device. Background technique [0002] The control characteristic test of the existing traveling wave ultrasonic motor servo control system is mainly for the position and speed control characteristic test, and the torque control characteristic test is less involved. Due to the non-linear output torque of the ultrasonic motor, the torque control becomes more difficult, so it is difficult for the motor to obtain better control characteristics in the torque servo control. [0003] Using this ultrasonic motor servo control system control characteristic test device, a DC permanent magnet motor is used to simulate a fixed and variable load, so that the output torque of the DC permanent magnet brushless motor can be changed according to the test needs, so that the loa...

Claims

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Application Information

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IPC IPC(8): G05B23/02
Inventor 傅平
Owner MINJIANG UNIV
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