基于响应曲面法的电力开关柜脉动热管散热参数优化研究

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关键词：电力开关柜;母线散热;脉动热管;温升优化；响应曲面法;复合实验设计;热管理;传热强化中图分类号： TM591 文献标志码：A doi：10.12415/j.issn.1671-7872.24134

Abstract： To improve the heat dissipation capability of power switchgear busbars，a 2 mm-diameter circular pulsating heat pipe was installed on the surface of phase Bbusbar， with the filing ratio of pulsating heat pipe， inlet ventilation velocity and busbar load current selected as experimental variables.The central composite design method was adopted to conduct heat dissipation optimization experiments.Basedon experimental results，the functional relationship between average busbar surface temperature and influencing factors was established through multiple linear regression analysis.The response surface methodology was then appied to simulate and analyze the interaction effects of various factors，followed by optimization ofpulsating heat pipe cooling parameters.Finally，the accuracy of response surface methodology predictions was verified by temperature rise experiments.The results indicatethat inlet ventilation velocitybusbarloadcurrentand theirinteractionsignificantlyaffect theaverage busbar surface temperature. The optimal operating conditions are determined as 853A load current， 1.7m/s inlet ventilation velocity and 50% filling ratio of pulsating heat pipe， achieving the minimum average busbar surface temperature and optimal heat dissipation performance. All temperature rise experimental data fall within the 95% confidence interval of response surface， confirming the reliability of response surface methodology predictions.

Keywords：electric switchgear; busbar heat disspation; pulsating heat pipe; temperature rise optimization; response surface methodology; composite experimental design; thermal management; heat transfer enhancement

电力开关柜作为输配电的关键设备，主要由柜体结构、母线系统、断路器装置和负荷开关等部件组成[1-3]。（剩余15944字）