Buck-Boost converter variable damping passive control method based on port controlled dissipation Hamiltonian model

A passive control and converter technology, used in control/regulation systems, output power conversion devices, DC power input conversion to DC power output, etc., can solve the problem of slow response speed, small steady-state error, and overshoot Large steady-state error, etc.

Inactive Publication Date: 2019-05-03
ZHEJIANG UNIV OF TECH
View PDF8 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The injection damping item of the traditional interconnection and damping configuration passive control method is a constant value, but the value of the injection damping affects the performance of the controller. If the damping injection is

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
  • Buck-Boost converter variable damping passive control method based on port controlled dissipation Hamiltonian model
  • Buck-Boost converter variable damping passive control method based on port controlled dissipation Hamiltonian model
  • Buck-Boost converter variable damping passive control method based on port controlled dissipation Hamiltonian model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0084] The present invention will be further described below in conjunction with the accompanying drawings.

[0085] A variable damping passive control method for a Buck-Boost converter based on a port-controlled dissipation Hamiltonian model, comprising the following steps:

[0086] Step 1, according to the system state average model and state variables of the Buck-Boost converter, the system state average model of the Buck-Boost converter is transformed into the port controlled dissipation Hamiltonian model form, and the port controlled dissipation Hamiltonian is verified Passivity of the model, the process is as follows:

[0087] 1.1, the Buck-Boost converter system state average model is expressed in the following form:

[0088]

[0089] Among them, i L is the inductor current, v o is the output voltage, V in is the input voltage, L, C, R are the inductance, capacitance and load resistance of the Buck-Boost converter respectively; u d is the control input;

[0090...

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 Buck-Boost converter variable damping passive control method based on a port controlled dissipation Hamiltonian model. The method comprises the following steps of 1, according to the system state averaging model and the state variables of a Buck-Boost converter, converting the system state averaging model of the Buck-Boost converter into a port controlled dissipation Hamiltonian model form, and verifying the passivity of the port controlled dissipation Hamiltonian model form; 2, according to the port controlled dissipation Hamiltonian model of the Buck-Boost converterand an interconnection and damping distribution passive control method, giving an expected interconnection and damping matrix and carrying out passive controller design; 3, designing a second-order differential tracker according to the influence of the damping coefficient change of the given damping matrix on the system performance, and realizing the real-time change of the injection damping; 4,designing a variable-damping passive controller according to the passive controller and the second-order differential tracker, and controlling the output voltage of the Buck-Boost converter. Accordingto the invention, by means of the control method, the output voltage of the Buck-Boost converter can be quickly converged to the expected output voltage. The steady-state error of the output voltageis reduced, and the overall performance of the system is improved.

Description

technical field [0001] The invention relates to a Buck-Boost converter passive control method, in particular to a Buck-Boost converter variable damping passive control method based on a port-controlled dissipation Hamiltonian model. Background technique [0002] The DC-DC converter is the core of the DC switching converter. Its characteristic is that the input voltage and the output voltage are both DC voltages. Its function is to pass the input DC voltage through the conversion circuit to make the system output the desired DC voltage. DC-DC converters can be divided into transformers without isolation and transformers with isolation according to whether there is electrical isolation between the input and output. Among them, the Buck-Boost converter is the most basic non-isolated DC converter. Because of its wide input voltage range, small input current ripple, and the output voltage can realize buck-boost control, it is widely used in the field of power electronics. . [...

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 南余荣潘橹文杨宇陈强
Owner ZHEJIANG UNIV OF 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