Double-integration indirect sliding mode controller of DC/DC converter and control method thereof

A double-integral, converter technology, used in control/regulation systems, DC power input conversion to DC power output, instruments, etc., can solve the problem of large steady-state errors in sliding mode control, unfavorable engineering applications, and complex sliding mode control applications. and other problems to achieve the effect of convenient application

Inactive Publication Date: 2015-10-28
HUBEI SANJIANG AEROSPACE WANFENG TECH DEV
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the sliding mode controller is often limited in two main aspects in the practical application of DC/DC converters: First, the operating frequency of the sliding mode controller is not fixed, which makes the application of sliding mode control in engineering more complicated and difficult. It is be

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
  • Double-integration indirect sliding mode controller of DC/DC converter and control method thereof
  • Double-integration indirect sliding mode controller of DC/DC converter and control method thereof
  • Double-integration indirect sliding mode controller of DC/DC converter and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0020] The double integral indirect sliding mode controller of the DC / DC converter of the present invention is characterized in that: it comprises comparator 2.2, current sampler 2.3, adder 2.4, subtractor 2.5, proportional integrator 2.6, voltage sampler 2.7 and Sawtooth wave generator 2.8, the signal input terminal of the voltage sampler 2.7 is used to collect the output voltage V of the DC / DC converter main circuit 1 0 , the signal output terminal of the voltage sampler 2.7 is connected to the inverting input terminal of the subtractor 2.5, the non-inverting input terminal of the subtractor 2.5 is the reference voltage input terminal, the output terminal of the subtractor 2.5 is connected to the input terminal of the proportional integrator 2.6, and the proportional integral The output terminal of the adder 2.6 is connected to the first input...

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 relates to a double-integration indirect sliding mode controller of DC/DC converter. A signal output terminal of a voltage sampler is connected with an inverting input terminal of a subtractor; a positive-phase input terminal of the subtractor serves as a reference voltage input terminal; an output terminal of the subtractor is connected with an input terminal of a proportion integrator; and an output terminal of the proportion integrator is connected with a first input terminal of a summator. A signal input terminal of a current sampler is used for collecting currents flowing through a main circuit filter capacitor of a DC/DC converter; and a signal output terminal of the current sampler is connected with a second input terminal of the summator. A signal output terminal of the voltage sampler is connected with a third input terminal of the summator; and an output terminal of the summator is connected with an in-phase input terminal of a comparator. An output terminal of a sawtooth generator is connected with an inverting input terminal of the comparator. With the controller, the dynamic performance and robustness of the DC/DC converter are effectively improved.

Description

technical field [0001] The invention relates to the technical field of a control method for a DC / DC (converting a fixed DC voltage into a variable DC voltage) converter, in particular to a double-integral indirect sliding mode controller and a control method for a DC / DC converter. Background technique [0002] As a control method, sliding mode control was originally used to control variable structure systems. Its main advantage is that it can maintain good stability and robustness under uncertain load disturbances, input disturbances or system parameter changes. In addition, sliding mode controllers are highly flexible and easy to implement in applications compared to other nonlinear controllers. These advantages make sliding mode control very suitable for controlling nonlinear systems, such as DC / DC converter main circuit 1 such as figure 1 described, including the power supply V i , power switch S w , diode D, filter capacitor C, energy storage inductor L, resistive loa...

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): H02M3/156
Inventor 乔洪涛常超梁美红樊呐刘进王元沈坤
Owner HUBEI SANJIANG AEROSPACE WANFENG TECH DEV
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