基于综合评价函数的12 kV开关柜除凝露加热器布置方法

doi:10.3969/j.issn.1008-0198.2023.02.002

湖南电力 ›› 2023, Vol. 43 ›› Issue (2): 8-13.doi: 10.3969/j.issn.1008-0198.2023.02.002

• 复杂环境下电力设备绝缘失效机理及风险评估方法专栏 • 上一篇下一篇

基于综合评价函数的12 kV开关柜除凝露加热器布置方法

许俊炜¹, 舒胜文¹, 占兆璇¹, 卞志文², 林一泓²

1.福州大学电气工程与自动化学院,福建福州 350108;
2.国网福建省电力有限公司电力科学研究院,福建福州 350007

收稿日期:2023-02-21 出版日期:2023-04-25 发布日期:2023-05-06
作者简介:许俊炜(1998),男,硕士研究生,主要从事电气设备故障诊断技术研究。舒胜文(1987),男,教授,通信作者,主要从事绝缘机理与故障诊断、电气设备状态评估等研究。
基金资助:
国家自然科学基金(52207150)

Heater Arrangement Method of 12 kV Switchgear Decondensation Based on Synthesizing Evaluation Function

XU Junwei¹, SHU Shengwen¹, ZHAN Zhaoxuan¹, BIAN Zhiwen², LIN Yihong²

1. College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China;
2. State Grid Fujian Electric Power Company Limited Electric Power Research Institute, Fuzhou 350007, China

Received:2023-02-21 Online:2023-04-25 Published:2023-05-06

摘要/Abstract

摘要： 高湿环境下开关柜容易受潮形成凝露,导致柜内电气设备的绝缘性能急剧下降。为提高开关柜应对潮湿环境的能力,以12 kV高压开关柜为例,提出一种考虑温升幅度、温升均匀性、除湿能力的加热器布置综合评价方法。首先,基于加热器布置综合评价方法开展加热器优化配置试验,选取最优加热器布置方案;然后,在加热器优化配置试验的基础上开展除凝露试验,验证加热器布置方案在高湿环境中的除湿性能;最后,结合温度-流体多物理场数值仿真,研究安装加热器条件下的温度和流场分布。结果表明:3个50 W加热器方案在综合评价方法的两种权重系数选取策略下均为最佳,最优加热器布置方案能在4.5 h内完全除凝露且不造成绝缘件过度加热。

关键词: 高压开关柜, 受潮凝露, 加热器布置, 多物理场仿真

Abstract: In high humidity environment, the switchgear is easy to get damp and form condensation, resulting in a sharp decline in the insulation performance of the electrical equipment in the switchgear. In order to improve the ability of switchgear to cope with humid environment, this paper takes 12 kV high-voltage switchgear as an example to propose a comprehensive evaluation method of heater layout which considers temperature rise level, temperature rise uniformity and dehumidification capacity. Firstly, based on the comprehensive evaluation method of heater layout, the optimal heater layout test is carried out to select the optimal heater layout scheme. Then, the decondensation test is carried out on the basis of the optimal configuration test of the heater to verify the dehumidification performance of the heater layout scheme in the high humidity environment. Finally, combined with the numerical simulation of temperature-fluid multi-physical field, the distribution of temperature and flow field under the condition of heater installation is studied. The results show that the three 50W heater schemes are the best among the two selection strategies. The optimal heater arrangement scheme can completely remove condensation within 4.5h without causing excessive heating of insulation parts.

Key words: high voltage switchgear, moisture condensation, heater arrangemen, multi-physical field simulation

中图分类号:

TM591

许俊炜, 舒胜文, 占兆璇, 卞志文, 林一泓. 基于综合评价函数的12 kV开关柜除凝露加热器布置方法[J]. 湖南电力, 2023, 43(2): 8-13.

XU Junwei, SHU Shengwen, ZHAN Zhaoxuan, BIAN Zhiwen, LIN Yihong. Heater Arrangement Method of 12 kV Switchgear Decondensation Based on Synthesizing Evaluation Function[J]. Hunan Electric Power, 2023, 43(2): 8-13.

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基于综合评价函数的12 kV开关柜除凝露加热器布置方法

Heater Arrangement Method of 12 kV Switchgear Decondensation Based on Synthesizing Evaluation Function

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