基于混沌博弈理论的多源微波加热温度均匀性优化

doi:10.11896/cldb.23100217

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Abstract This work studied the optimization problem of the overall temperature uniformity inside the material in a multi-source microwave heating system, which aimed to achieve the optimization goal of minimizing the temperature field gradient in the presence of standing waves in the resonant cavity. Firstly, starting from the dynamic changes of microwave frequency, this work adopted the frequency shift method of alternating hot spots to reverse the temperature distribution of the material, achieved the neutralization of cold hot spots between the media, and achieved the goal of uniform heating. Then, based on the difference in the degree of coupling between different microwave sources, the chaos game optimization algorithm was introduced to reconstruct the value of the feed-in power of each microwave source at different frequencies, to improve the ove-rall temperature of the material under the condition of ensuring the unchanged temperature uniformity. Finally, a simulation example of the interaction between multi-source microwaves and SiC material was used to analyze the heating process and effectively calculate the uniformity index; The numerical calculations show that the proposed method improves the uniformity by 26.3%—70.2% and 60.0%—62.7% compared with the fixed-frequency heating and the swept-frequency heating, respectively, while the heating efficiency is improved by 2.5%—41.7% and 14.2%—14.6%, respectively, which verifies that the proposed method can effectively improve the temperature uniformity of microwave heating.

Key words： microwave heating multiple microwave sources power frequency coordination hot spot alternation chaos game optimization algorithm uniformity

Published: 10 February 2025 Online: 2025-02-05

CLC number:

TP273

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	Articles by authors
	YANG Biao
	HAN Zemin
	DUAN Shaomi
	HUANG Hongbin
	WU Zhaogang
	PENG Feiyun

Cite this article:

YANG Biao,HAN Zemin,DUAN Shaomi, et al. Optimization of Temperature Uniformity for Multi-source Microwave Heating Based on Chaos Game Theory[J]. Materials Reports, 2025, 39(3): 23100217-8.

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http://www.mater-rep.com/EN/10.11896/cldb.23100217 OR http://www.mater-rep.com/EN/Y2025/V39/I3/23100217

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