Nonlinear oxygen-enriched injection method based on chaotic mapping and electronic device thereof

Patent metadata

Field	Value
Publication number	US-12492447-B2
Application number	US-202318164476-A
Country	US
Kind code	B2
Filing date	Feb 3, 2023
Priority date	Sep 28, 2022
Publication date	Dec 9, 2025
Grant date	Dec 9, 2025

Abstract

A nonlinear oxygen-enriched injection method based on chaotic mapping and electronic device is disclosed, including: obtaining a chaotic gas injection volume corresponding to a current speed change period according to a chaotic mapping value corresponding to the current speed change period and a peak gas injection volume in an oxygen-enriched injection process; determining a rotational speed of a fan blade in a fan component corresponding to the current speed change period according to the chaotic gas injection volume; updating a rotational speed of a direct current (DC) motor in the fan component corresponding to the current speed change period according to the rotational speed of the fan blade in the fan component, and driving the fan blade to rotate according to an updated rotational speed of the DC motor, so as to update an air output of the fan component. The above operations are repeated until a last stage.

First claim

What is claimed is:

1 . A nonlinear oxygen-enriched injection method based on chaotic mapping, comprising:
obtaining a chaotic mapping value corresponding to a current speed change period; obtaining a chaotic gas injection volume corresponding to the current speed change period according to the chaotic mapping value corresponding to the current speed change period and a peak gas injection volume in an oxygen-enriched injection process, wherein speed change periods are determined by dividing the oxygen-enriched injection process at equal time intervals; determining a rotational speed of a fan blade in a fan component corresponding to the current speed change period according to the chaotic gas injection volume corresponding to the current speed change period and a first relation, wherein the first relation is a relation between the chaotic gas injection volume and the rotational speed of the fan blade; updating a rotational speed of a direct current (DC) motor in the fan component corresponding to the current speed change period according to the rotational speed of the fan blade in the fan component corresponding to the current speed change period, and driving the fan blade to rotate according to an updated rotational speed of the DC motor, so as to update an air output of the fan component; and determining whether the current speed change period is a last speed change period, and if not, calculating a chaotic mapping value corresponding to a next speed change period, updating the chaotic mapping value corresponding to the current speed change period to be the chaotic mapping value corresponding to the next speed change period, updating the current speed change period to be the next speed change period, and returning to the step of obtaining a chaotic gas injection volume corresponding to the current speed change period according to the chaotic mapping value corresponding to the current speed change period and a peak gas injection volume in an oxygen-enriched injection process.

2 . The nonlinear oxygen-enriched injection method based on chaotic mapping according to claim 1 , wherein the obtaining a chaotic mapping value corresponding to a current speed change period comprises:
calculating the chaotic mapping value corresponding to the current speed change period according to chaotic mapping of Logistic-Logistic (L-L) cascade and a chaotic mapping value corresponding to a previous speed change period.

3 . The nonlinear oxygen-enriched injection method based on chaotic mapping according to claim 1 , wherein the obtaining a chaotic gas injection volume corresponding to the current speed change period according to the chaotic mapping value corresponding to the current speed change period and a peak gas injection volume in an oxygen-enriched injection process comprises:
calculating the chaotic gas injection volume corresponding to the current speed change period according to Q i =Q f ·x i , wherein Q i is the chaotic gas injection volume corresponding to the current speed change period, i is the current speed change period, x i is the chaotic mapping value corresponding to the current speed change period, and Q f is the peak gas injection volume in the oxygen-enriched injection process.

4 . The nonlinear oxygen-enriched injection method based on chaotic mapping according to claim 1 , wherein the determining a rotational speed of a fan blade in a fan component corresponding to the current speed change period according to the chaotic gas injection volume corresponding to the current speed change period and a first relation comprises:
calculating the rotational speed of the fan blade in the fan component corresponding to the current speed change period according to n i =αQ i , wherein n i is the rotational speed of the fan blade in the fan component corresponding to the current speed change period, i is the current speed change period, Q i is the chaotic gas injection volume corresponding to the current speed change period, and α is determined by the air output of the fan component and the rotational speed of the fan blade in the fan component.

5 . The nonlinear oxygen-enriched injection method based on chaotic mapping according to claim 1 , wherein the updating a rotational speed of a DC motor in the fan component corresponding to the current speed change period according to the rotational speed of the fan blade in the fan component corresponding to the current speed change period comprises:
calculating a duty cycle of a power signal of the DC motor corresponding to the current speed change period according to the rotational speed of the fan blade in the fan component corresponding to the current speed change period; calculating an average terminal voltage of an armature of the DC motor corresponding to the current speed change period according to the duty cycle of the power signal of the DC motor corresponding to the current speed change period; and updating the rotational speed of the DC motor in the fan component corresponding to the current speed change period according to the average terminal voltage of the armature of the DC motor corresponding to the current speed change period.

6 . The nonlinear oxygen-enriched injection method based on chaotic mapping according to claim 5 , wherein the rotational speed of the DC motor in the fan component corresponding to the current speed change period is a theoretical rotational speed of the DC motor, and the method further comprises:
obtaining an actual rotational speed of the DC motor in the current speed change period; and causing the actual rotational speed of the DC motor to be identical with the theoretical rotational speed of the DC motor by using a proportional-integral-derivative (PID) control algorithm.

7 . The nonlinear oxygen-enriched injection method based on chaotic mapping according to claim 5 , wherein the calculating a duty cycle of a power signal of the DC motor corresponding to the current speed change period according to the rotational speed of the fan blade in the fan component corresponding to the current speed change period comprises:
calculating the duty cycle of the power signal of the DC motor corresponding to the current speed change period according to γ i =βn i +c, wherein n i is the rotational speed of the fan blade in the fan component corresponding to the current speed change period, i is the current speed change period, γ i is the duty cycle of the power signal of the DC motor corresponding to the current speed change period, β is a coefficient, and c is a constant.

8 . A nonlinear oxygen-enriched injection method based on chaotic mapping, comprising:
determining a chaotic mapping value corresponding to each speed change period, wherein speed change periods are determined by dividing an oxygen-enriched injection process at equal time intervals, and the speed change periods are arranged in a chronological order; obtaining a chaotic gas injection volume corresponding to each speed change period according to the chaotic mapping value and a peak gas injection volume in the oxygen-enriched injection process; determining a rotational speed of a fan blade in a fan component corresponding to each speed change period according to the chaotic gas injection volume corresponding to each speed change period and a first relation, wherein the first relation is a relation between the chaotic gas injection volume and the rotational speed of the fan blade; and updating a rotational speed of a DC motor in the fan component corresponding to each speed change period according to the rotational speed of the fan blade in the fan component corresponding to each speed change period, and according to the arrangement order of the speed change periods, driving the fan blade to r

Assignees

• Univ Kunming Science & Technology

Inventors

• Wang Hua
• Yang Kai
• Xiao qingtai

Classifications

• F27D2019/0043

  Amount of air or O2 to the burner · CPC title

• F27D2003/164

  Oxygen · CPC title

• F27D19/00

  Arrangements of controlling devices · CPC title

• F27D7/02

  Supplying steam, vapour, gases or liquids · CPC title

• C22B9/05 Primary

  Refining by treating with gases, e.g. gas flushing {also refining by means of a material generating gas in situ} · CPC title