基于高温绝缘系统的低频变压器轻量化设计方法

LI Hao; ZHAO Wenbin; WANG Ya; ZHAO Yikun; BI Jiangang; DING Chao

doi:10.13336/j.1003-6520.hve.20250472

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基于高温绝缘系统的低频变压器轻量化设计方法

更新时间：2026-09-16

- 基于高温绝缘系统的低频变压器轻量化设计方法
- Vol. 52, Issue 6, Pages: 2597-2608(2026)
- 作者机构：
  
  1. 上海电力大学电气工程学院,上海,200090
  2. 中国电力科学研究院有限公司,北京,100192
  3. 国网浙江省电力有限公司电力科学研究院,杭州,310000
- 作者简介：
- 基金信息：
- DOI：10.13336/j.1003-6520.hve.20250472
  CLC：
- Received：30 June 2026，
  
  Published：2026
- 稿件说明：
移动端阅览
LI Hao, ZHAO Wenbin, WANG Ya, et al. 基于高温绝缘系统的低频变压器轻量化设计方法[J]. 2026, 52(6): 2597-2608.
DOI：

LI Hao, ZHAO Wenbin, WANG Ya, et al. 基于高温绝缘系统的低频变压器轻量化设计方法[J]. 2026, 52(6): 2597-2608. DOI： 10.13336/j.1003-6520.hve.20250472.

摘要

为了解决低频电力变压器尺寸与质量增大的问题，提出了基于高温绝缘系统的低频变压器的轻量化设计方法。通过试验测得低频和工频条件下矿物油、合成酯以及合成酯油纸绝缘系统的击穿特性，探究频率的改变对绝缘材料击穿特性的影响，为优化设计奠定基础。将材料特性与多目标遗传算法相结合，构建质量-尺寸-损耗综合优化模型。以330 MVA/220 kV变压器为例，通过与低频输电工程所用同型号低频变压器对比，分析优化方案的有效性，优化后总质量降低12.7%，油箱尺寸缩减12.05%，并且不超过同型号工频变压器质量与尺寸的1.5倍，并结合温度场和电场仿真对优化结果进行验证。全生命周期成本分析显示，采用高温绝缘系统的低频变压器维护成本更低，全生命周期成本较传统矿物油方案减少7.36%，研究成果可为低频变压器轻量化设计提供优化方案。

Abstract

In order to solve the problem of increasing the size and weight of low-frequency power transformer

a lightweight design method of low-frequency transformer based on high-temperature insulation system is proposed. The breakdown characteristics of mineral oil

synthetic ester

and synthetic ester oil paper insulation system under low frequency and power frequency conditions were measured through experiments

and the influence of frequency change on the breakdown characteristics of insulation materials was explored

which laid the foundation for the optimization design. By combining the material properties with multi-objective genetic algorithm

a weight size loss comprehensive optimization model is constructed. A 330 MVA/220 kV transformer is taken as an example

and the effectiveness of the optimization scheme is analyzed by comparing with the same type of low-frequency transformer used in low-frequency transmission projects. After optimization

the total weight is reduced by 12.7%

and the tank size is reduced by 12.05%

which is not more than 1.5 times of the weight and size of the same type of power frequency transformer. The optimization results are verified by temperature field and electric field simulation. The life cycle cost analysis shows that the maintenance cost of low-frequency transformer with high-temperature insulation system is lower

and the life cycle cost is reduced by 7.36% compared with the traditional mineral oil scheme. The research results can provide an optimization scheme for the lightweight design of low-frequency transformer.

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