基于电磁-热-结构多物理场耦合的铁心电抗器线圈结构优化方法

doi:10.19595/j.cnki.1000-6753.tces.211541

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Abstract In this paper, the windings of the core reactor are taken as the research object, and the optimization design is carried out to equalize the electromagnetic, temperature rise and vibration characteristics and improve the utilization rate of metal materials. Firstly, the influence of structural parameters of the reactor winding on the electromagnetic field, temperature rise and vibration is analyzed using the multi-physical field coupling finite element method of electromagnetic field, temperature field and structural field. According to the analysis results, combined with the orthogonal test method, the winding structure is optimized to minimize the number of winding conductors while balancing the electromagnetic, temperature rise and vibration characteristics of the reactor, and the best structural parameters of the core reactor coil are obtained. Then, the performance of the model before and after optimization is compared. The results show that the conductor consumption of the reactor winding after optimization is reduced by 16.8%, and the inductance deviation is only 0.6%, the maximum temperature rise of the coil is reduced by 7.3%, and the vibration displacement of the inner coil is increased by 14.3%. In contrast, the vibration of the outer coil remains unchanged, which meets the requirements of electromagnetic, temperature rise, and vibration.

Key words： Core reactor multi-physical field coupling orthogonal test optimization design conductor consumption

Received: 24 September 2021

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TM47

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.211541 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I24/6431

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