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Device and method for controlling XY working platform of ultrasonic motor based on neural network

A technology of ultrasonic motor and neural network, applied in electrical program control, piezoelectric effect/electrostrictive or magnetostrictive motor, digital control, etc., can solve the problems of spring static pressure, parameter nonlinear characteristics, influence, etc. , to achieve the effect of large operating frequency range, small DC harmonics, and improved tracking accuracy

Inactive Publication Date: 2012-10-10
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology

[0005] However, the ultrasonic motor has the disadvantages that the mathematical model is difficult to establish, the parameters have nonlinear characteristics, and it is easy to be affected by temperature, load torque, and spring static pressure.

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  • Device and method for controlling XY working platform of ultrasonic motor based on neural network
  • Device and method for controlling XY working platform of ultrasonic motor based on neural network
  • Device and method for controlling XY working platform of ultrasonic motor based on neural network

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Embodiment Construction

[0059] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0060] Ultrasonic motor XY work platform control device based on neural network, such as figure 1 As shown, the device includes an ultrasonic motor circuit 1, a resonance tank main circuit, a voltage-controlled oscillator VCO5, a control and drive circuit 4, and a digital signal processor 6, and is characterized in that: the resonance tank main circuit includes current sources connected in parallel Resonance drive circuit, the current source parallel resonance drive circuit includes two current source parallel resonance inverters 2 and 3 with energy feedback function; wherein, the ultrasonic motor circuit 1: is used to control X, Y in the XY work platform Two-axis motion position circuit; resonance tank main circuit: contains two current source parallel resonant inverters with energy feedback function, which controls the positive and negative rotation of...

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Abstract

The invention discloses a device and a method for controlling an XY working platform of an ultrasonic motor based on a neural network. The device comprises an ultrasonic motor circuit, a resonance trough main circuit, a voltage-controlled oscillator (VCO), a control and driving circuit and a digital signal processor, wherein the resonance trough main circuit comprises a current source parallelly-connected resonance driving circuit; and the current source parallelly-connected resonance driving circuit comprises two current source parallelly-connected resonance inverters with energy feedback functions. An ultrasonic motor is adopted; compared with other motors, the ultrasonic motor has the advantages of being influenced by electromagnetic wave interference difficultly along with high torque at low rotating speed and the like; furthermore, the current source parallelly-connected resonance inverters with the energy feedback functions control the ultrasonic motor, so that advantages of relatively large operation frequency range, relatively small direct current harmonic, no need of buffers and the like are achieved; and according to the characteristic of the ultrasonic motor that a math model is determined difficultly, the ultrasonic motor is controlled by adopting a fuzzy neural network algorithm, so that the tracking precision of a system is improved.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to a control device and method for an XY work platform of an ultrasonic motor based on a neural network. Background technique [0002] With the development of productivity and the continuous improvement of product quality requirements in the modern processing industry, automation technology is widely used in various occasions. Mechatronics is an important part of automation technology, especially the part of automation machinery. Automation technology is currently widely used in the parts processing industry of CNC machine tools. Modern CNC machining is developing in the direction of high speed, high precision, high intelligence, high flexibility, high automation and high reliability, improving the machining accuracy of machine tools, Quality and efficiency have become the hot spots in the research and development of numerical control technology in the world t...

Claims

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Application Information

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IPC IPC(8): G05B19/18H02N2/14
Inventor 赵希梅孙显峰王丽梅孙宜标姜明明
Owner SHENYANG POLYTECHNIC UNIV
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