Low-frequency PWM and single neuron self-adaption-based ultrasonic motor control system

An ultrasonic motor, a single neuron technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc.

Inactive Publication Date: 2015-05-27
ANHUI UNIV OF SCI & TECH
View PDF5 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PID, Adaptive, Sliding Mode Variable Structure, Neural Networks, Model Reference, Inverse Model, H ∞ And other schemes have been used in the motion control of ultrasonic motors, which have improved the problems o...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-frequency PWM and single neuron self-adaption-based ultrasonic motor control system
  • Low-frequency PWM and single neuron self-adaption-based ultrasonic motor control system
  • Low-frequency PWM and single neuron self-adaption-based ultrasonic motor control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] 1. Switching power supply circuit

[0021] The system power supply of this control system is connected to a switching power supply circuit with overvoltage and overcurrent protection, which provides power in three states of 12VDC, 5VDC, and 3.3VDC for the system, of which the 12VDC switching power supply provides DC regulated power for the USM drive circuit, and the 5VDC switch The power supply provides DC regulated power supply for the isolated drive circuit, the photoelectric encoding unit and the serial port drive circuit. 3.3VDC switching power supply provides DC regulated power supply for high-speed microprocessor DSP and CPLD. The switching power supply used is high-efficiency power supply with anti-high voltage and anti-overcurrent, and has a good energy-saving effect;

[0022] 2. Selection of high-speed m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a low-frequency PWM and single neuron self-adaption-based ultrasonic motor control system. According to the system, a traveling wave ultrasonic motor is adopted as a control object, a serial port driving circuit is used for sending the steering, rotating speed, turning angle information into a serial communication SCI interface of a high-speed microprocessor DSP through a system information interface, and the DSP calculates low-frequency PWM signals required by close loop control according to the input command and feedback information in running of the motor, and inputting the frequency, phase and amplitude control word of a DDS signal generator to a high speed microprocessor CPLD through SPI communication. The low-frequency PWM signals output by the DSP and the signal output by the CPLD are processed by a DDS-based symmetrical PWM signal generation unit and then sent to a USM driving unit, four pathways of symmetrical PWM signals are acted to a two-phase push-pull inverting circuit and a matching circuit to output two-phase sinusoidal voltage with certain amplitude, frequency and phase difference and drive the ultrasonic motor. The system has the characteristics that power supply utilization rate is high, the speed regulation range is wide, the running state of the motor is stable, and the system has self-adaption capacity and the like.

Description

technical field [0001] The invention relates to a two-phase ultrasonic motor, in particular to an ultrasonic motor control system based on low-frequency PWM and single neuron self-adaptation. Background technique [0002] The structure and operating principle of the ultrasonic motor are different from the traditional electromagnetic motor. It uses the inverse piezoelectric effect of the piezoelectric material to generate ultrasonic vibration, thereby converting the electrical energy into the ultrasonic vibration of the elastic body, and converting it into a moving body through friction transmission. rotary or linear motion. Due to the process of piezoelectric energy conversion and frictional energy transfer, the nonlinearity and internal multivariable coupling of ultrasonic motors are serious. PID, Adaptive, Sliding Mode Variable Structure, Neural Networks, Model Reference, Inverse Model, H ∞ And other schemes have been used in the motion control of ultrasonic motors, whic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02N2/14
Inventor 周莉范国鹏李振华周文庆蒋涛
Owner ANHUI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap