An Adaptive Control Method for Piezoelectric Motors without Parameter Information Gap Stability

A technology of adaptive control and piezoelectric motor, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motor, generator/motor, electrical components, etc., can solve problems such as chatter

Active Publication Date: 2019-02-19
FUJIAN HUICHUAN DIGITAL TECH
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Problems solved by technology

[0002] There is a discontinuous function sgn(z n ) involved in the control, which may cause chatter

Method used

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  • An Adaptive Control Method for Piezoelectric Motors without Parameter Information Gap Stability
  • An Adaptive Control Method for Piezoelectric Motors without Parameter Information Gap Stability
  • An Adaptive Control Method for Piezoelectric Motors without Parameter Information Gap Stability

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Embodiment Construction

[0068] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0069] A piezoelectric motor adaptive control method with no parameter information gap stability of the present invention provides a piezoelectric motor adaptive control system, including a base 12 and a piezoelectric motor 4 arranged on the base 12, the piezoelectric motor The output shaft 3 on one side of the motor 4 is connected to the photoelectric encoder 1, and the output shaft 6 on the other side is connected to the flywheel inertial load 7. The output shaft 8 of the flywheel inertial load 7 is connected to the torque sensor 10 through the elastic coupling 9. The signal output end of the photoelectric encoder 1 and the signal output end of the torque sensor 10 are respectively connected to the control system.

[0070] The piezoelectric motor 4 , the photoelectric encoder 1 and the torque sensor 10 are respectively fixed on the base...

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Abstract

The invention relates to a piezoelectric motor adaptive control method of parameter-free information gap stability, and provides a piezoelectric motor adaptive control system comprising a base and a piezoelectric motor which is arranged on the base. One side output shaft of the piezoelectric motor is connected with a photoelectric encoder, and the other side output shaft is connected with a flywheel inertia load. The output shaft of the flywheel inertia load is connected with a torque sensor through a coupler. The signal output end of the photoelectric encoder and the signal output end of the torque sensor are connected with a control system. The control system is established on the basis of backstepping operation so as to acquire better control efficiency. According to the method, piezoelectric motor adaptive control is enabled to acquire better control efficiency.

Description

technical field [0001] The invention relates to a piezoelectric motor self-adaptive control method with no parameter information gap stability. Background technique [0002] There is a discontinuous function sgn(z n ) is involved in the control, which may cause chatter. To avoid this situation, we now propose an improved backstepping adaptive control scheme. This control system can effectively improve the control efficiency of the system and further reduce the degree of influence of the system on uncertainty. Therefore, the position and speed control of the motor can obtain better dynamic characteristics. Contents of the invention [0003] The purpose of the present invention is to provide a stable piezoelectric motor adaptive control method without parameter information gap, which enables the piezoelectric motor adaptive control to obtain better control efficiency. [0004] In order to achieve the above object, the technical solution of the present invention is: a pie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/14
CPCH02N2/142
Inventor 傅平
Owner FUJIAN HUICHUAN DIGITAL TECH
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