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Single-phase pulse speed regulation control method based on dual pwm power drive topology

A topological structure and power-driven technology, applied in generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve problems such as poor speed regulation accuracy and affecting motor life

Active Publication Date: 2022-03-08
NUAA SUPER CONTROL TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the poor speed regulation accuracy in the pulse speed regulation method, which affects the life of the motor and system disturbance

Method used

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  • Single-phase pulse speed regulation control method based on dual pwm power drive topology
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  • Single-phase pulse speed regulation control method based on dual pwm power drive topology

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Embodiment Construction

[0031] In order to show the effects of the present invention, the present invention will be further described below through specific examples. However, it should be understood that these examples are only used to explain the present invention in more detail, and should not be construed as limiting the present invention.

[0032] The present invention is a single-phase pulse speed regulation control method based on dual PWM power drive topology, comprising the following steps:

[0033] A single-phase pulse speed regulation control method based on a dual-PWM power drive topology, specifically comprising the following steps:

[0034] Step 1, set up two dual-PWM power topology components: PWM_A (SIN) component and PWM_B (COS) component;

[0035] Step 2: Let the first power transistor QA1 in the PWM_A component receive the gate drive signal PWM_A_G1, the second power transistor QA2 receive two PWM drive signals from the gate PWM_A_G2 to realize the voltage control of the SIN phase...

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Abstract

The invention discloses a single-phase pulse speed regulation control method based on a dual-PWM power drive topology. The drive signal output by the SIN (or COS) phase is continuously output; only the PWM_B (or COS) phase of the COS (or SIN) phase is adjusted and changed. A) _G1, PWM_B (or A) _G2, PWM_B (or A) _G3, PWM_B (or A) _G4 and other PWM driving signals, so that the number of pulses can change from the minimum value to the maximum value, that is, the COS (or SIN) phase The output PWM drive signal is a single-phase pulse repetitive output; the method of realizing the ultrasonic motor pulse to adjust the speed is called the single-phase pulse speed control method. The invention can make the speed adjustment range of the ultrasonic motor as wide as 10 6 , Speed ​​adjustment linear, very low speed adjustment characteristics are good. It is better than frequency regulation and speed regulation, single-phase voltage regulation and speed regulation.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic motor power drive power supplies, and in particular relates to a single-phase pulse speed regulation control method based on a dual PWM power drive topology. Background technique [0002] Compared with traditional motors, ultrasonic motors have the characteristics of low speed, large torque / mass ratio, fast response, power-off self-locking, nanoscale resolution, and no electromagnetic interference. [0003] Ultrasonic motors need to be driven by two quadrature-phase ultrasonic frequencies provided by the ultrasonic motor drive controller. For example: the invention patent "A Dual PWM Power Drive Topology for Ultrasonic Motors (Application Date November 13, 2012, Application No. 201210451717.9)" discloses an output stage of an ultrasonic motor, which uses constant current power supply PWM_POWER and power The dual-PWM power drive topology that couples two PWM components, PWM_DRIVE, has the advan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/00H02N2/14
CPCH02N2/0075H02N2/14
Inventor 赵淳生梁大志杨淋
Owner NUAA SUPER CONTROL TECHNOLOGY CO LTD