Linear power driving controller based on large-power operational amplifier for three-phase alternating current motor

A drive controller, three-phase AC technology, applied in the direction of single motor speed/torque control, electronic commutator, etc., to improve the quality of output current, high measurement accuracy, and achieve the effect of electrical isolation

Active Publication Date: 2012-10-24
北京北航天宇长鹰无人机科技有限公司
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Currently, linear power drive technology based on high-power op amps is only used for brushed DC mo

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
  • Linear power driving controller based on large-power operational amplifier for three-phase alternating current motor
  • Linear power driving controller based on large-power operational amplifier for three-phase alternating current motor
  • Linear power driving controller based on large-power operational amplifier for three-phase alternating current motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] The present invention will be further described below in conjunction with the accompanying drawings.

[0053] The invention relates to a linear power drive controller based on a high-power operational amplifier for a three-phase AC motor, which consists of four parts: a linear power drive module, a signal detection module, a digital control module and a D / A conversion module. Among them, the signal detection module detects the three-phase winding current signal of the motor and the motor rotor position signal, and converts it into a signal form that the digital control module can directly receive, and transmits it to the digital control module; the digital control module completes the control according to the received motor status information The calculation of the algorithm, and give the digital control signal; the D / A conversion module is responsible for converting the digital control signal into an analog control signal, and passing it to the linear power drive module...

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

A linear power driving controller based on large-power operational amplifier for a three-phase alternating current motor consists of a linear power driving module, a signal detecting module, a digital control module and a digital-analogue (D/A) converting module. The signal detecting module detects a motor three-phase winding current signal and a motor rotor position signal, converts the signals into signals which can be directly received by the signal detecting module and transmits the signals to the signal detecting module. The signal detecting module finishes calculation of a control algorithm according to received motor state information and gives a digital quantity control signal. The D/A converting module converts the digital quantity control signal into an analog quantity control signal and transmits the analog quantity control signal to the linear power driving module. The linear power driving module isolates the analog quantity control signal and a power level signal, further performs power amplification, provides high voltage and large current for a motor winding and accordingly achieves high-precision control of the three-phase alternating current motor. The linear power driving controller has good application prospect in the technical field of electric motor automatic control.

Description

1. Technical field [0001] The invention relates to a linear power drive controller based on a high-power operational amplifier for a three-phase AC motor, which is mainly used in low-power occasions and belongs to the technical field of motor automatic control. 2. Background technology [0002] There are two main ways to realize the power drive circuit of high-precision servo motor: pulse width modulation (Pusle Width Modulation, PWM) and linear power amplification. At present, because the pulse width modulation method has the advantages of small power loss, high efficiency, and easy full digital control drive, it has been widely used in motor power drive. [0003] However, the high-frequency modulation switching action seriously pollutes the electromagnetic environment and affects the normal operation of sensors, signal conversion and conditioning circuits in the servo system; the pulse width modulation method introduces switching frequency sub-harmonics into the motor wind...

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): H02P6/08H02P6/16H02P6/17
Inventor 郭宏白磊钱浩孙泽东
Owner 北京北航天宇长鹰无人机科技有限公司
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