Segmented PID (Proportion Integration Differentiation) control circuit and method based on double-full-bridge converter

A technology of control circuit and full-bridge circuit, applied in control/regulation system, conversion of DC power input to DC power output, instruments, etc., can solve the problems of low reliability, easy to be affected by cosmic radiation, complex control strategy, etc. To achieve the effect of accurate closed-loop control

Pending Publication Date: 2022-03-15
SHANGHAI INST OF SPACE POWER SOURCES
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional control method mostly adopts PID control, and its implementation method is simple, but the parameters of the PID controller only have a good control effect for small-scale single-mode scenarios, and are lacking in wide-range, multi-mode application scenarios.
For some improved control methods, the control strategy is more complicated, and generally requires a digital controller to realize. For space application scenarios, digital circuits are easily affected by cosmic radiation and have low reliability.

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
  • Segmented PID (Proportion Integration Differentiation) control circuit and method based on double-full-bridge converter
  • Segmented PID (Proportion Integration Differentiation) control circuit and method based on double-full-bridge converter
  • Segmented PID (Proportion Integration Differentiation) control circuit and method based on double-full-bridge converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The following describes the present invention in detail, and the features and advantages of the present invention will become more clear and definite along with these descriptions.

[0029] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0030] The present invention provides a segmented PID control circuit based on double full-bridge converters, which can make double full-bridge converters ( figure 1 ) output and the set reference value can quickly maintain the same ability in both PWM mode and phase shift mode; figure 2 As shown, the PID control circuit includes a sampling module, a PID_1 module, a PID_2 module, a PWM controller, a phase...

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 provides a segmented PID control circuit and method based on a double-full-bridge converter. The segmented PID control circuit comprises a sampling module, a PID1 module, a PID2 module, a PWM controller, a phase shift controller, a mode selection module, a data selection module and a driving module. In a space application scene, PID controllers with different parameters are respectively designed according to the working characteristics of a PWM mode and a phase shift mode of the double-full-bridge converter, the working mode of the circuit can be judged according to a sampling value, and the corresponding PID controllers are respectively accessed in the two modes to realize stable, rapid and accurate closed-loop control.

Description

technical field [0001] The invention belongs to the technical field of power electronics, and in particular relates to a segmented PID control circuit and method based on double full-bridge converters. Background technique [0002] For high-voltage and high-power space applications, the traditional isolated topology operating mode is relatively single, and cannot adapt to the application scenarios with a wide range of input and output voltages. Therefore, a dual full-bridge power topology is proposed based on the full-bridge circuit, which has a PWM mode. and phase-shift mode, and the secondary side circuit can be switched between the series mode and the parallel mode in the two modes of operation, so that the gain range of the circuit can be expanded. The change of its working mode also puts forward different requirements for the control parameters in order to achieve fast, stable and accurate control effects. [0003] The traditional control method mostly adopts PID contr...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H02M1/088
CPCH02M3/33569H02M3/33523H02M1/088
Inventor 朱子锐董宝磊蒋丛让夏晨泰周罗增刘涛黄军
Owner SHANGHAI INST OF SPACE POWER SOURCES
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