Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Finite Control Set Model Predictive Control Method Based on Double Vector Action

A technology of model predictive control and finite control set, applied in the direction of output power conversion device, electrical components, AC power input conversion to DC power output, etc., can solve the problems of steady-state performance limitation and achieve the effect of steady-state performance improvement

Active Publication Date: 2021-02-19
SOUTH CHINA UNIV OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional finite control set model predictive control only acts on one switch combination in one sampling period, and the steady-state performance is limited.

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
  • A Finite Control Set Model Predictive Control Method Based on Double Vector Action
  • A Finite Control Set Model Predictive Control Method Based on Double Vector Action
  • A Finite Control Set Model Predictive Control Method Based on Double Vector Action

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The implementation of the present invention will be further described below in conjunction with the accompanying drawings and examples, but the implementation and protection of the present invention are not limited thereto.

[0032] figure 1 Shown is a schematic diagram of a finite control set model predictive control method based on double vector action proposed by the present invention, the main steps are as follows:

[0033] The following takes a single-phase voltage-type inverter as an example to illustrate.

[0034] (S1) Select the output voltage U 0 (k), the filter inductor current i(k) is used as the state variable of the system, and the discrete time of the system is listed according to Kirchhoff Voltage Law (Kirchhoff Voltage Law, KVL) and Kirchhoff Current Law (Kirchhoff Current Law, KCL) The state equation:

[0035]

[0036] In the formula: d[] / dt represents the differential value of the state variable; L and C represent the filter inductance value and ...

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 finite control set model predictive control method based on double-vector action, and belongs to the fields of power electronic variable current control technology and industrial control. The invention consists of two links: voltage outer loop control and current inner loop control. Among them, the voltage outer loop control adopts digital proportional-integral (PI) control, and the current inner loop control adopts a finite control set model predictive control method based on double vector action: the system acts on this sampling period through the calculation of the objective function The best combination of switches, and then act on the best combination of switches calculated in the previous sampling period and this sampling period for a period of time, so that the predicted value can track the reference value as much as possible. A finite control set model predictive control method based on double vector action disclosed by the present invention overcomes the disadvantage that the traditional finite control set model predictive control method can only act on one voltage vector in one sampling period, improves the steady-state performance of the system, and can be very good To meet the working requirements of the power electronic system.

Description

technical field [0001] The invention relates to power electronic converter and industrial control technology, in particular to a finite control set model predictive control method based on double vector action, which belongs to the technical field of power electronic converter. Background technique [0002] Finite control set model predictive control is a research hotspot of predictive control at present. The finite control set model predictive control method has the advantages of easy to add nonlinear constraints, no modulator, and fast dynamic response. But the traditional finite control set model predictive control only acts on one switch combination in one sampling period, and the steady-state performance is limited. How to simultaneously act on multiple switch combinations in one sampling period to improve the stability of the system (the system refers to the implementation object of the control method, generally refers to the power electronic converter, and refers to ...

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 Patents(China)
IPC IPC(8): H02M1/00H02M7/5387
CPCH02M1/00H02M7/53873H02M1/0012H02M1/0025
Inventor 杜贵平黎嘉健刘源俊雷雁雄赖娜
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com