基于响应面法的变压器静电环绝缘优化设计  

Optimal Design of Transformer Electrostatic Ring Insulation Based on Response Surface Method

作　　者：刘刚[1] 刘西娅 刘尧[1] 李琳[2] 孙优良 雷园园 LIU Gang;LIU Xiya;LIU Yao;LI Lin;SUN Youliang;LEI Yuanyuan(Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defense,North China Electric Power University,Baoding 071003,China;Department of Electric Power Engineering,North China Electric Power University,Baoding 071003,China;Shandong Power Equipment Co.,Ltd.,Jinan 250022,China;Electric Power Research Institute,China Southern Power Grid,Guangzhou 510663,China)

机构地区：[1]华北电力大学河北省输变电设备安全防御重点实验室,保定071003 [2]华北电力大学电力工程系,保定071003 [3]山东电力设备有限公司,济南250022 [4]南方电网科学研究院有限责任公司,广州510663

出　　处：《高电压技术》2022年第10期4163-4171,共9页High Voltage Engineering

基　　金：国家重点研发计划(2017YFB0902703)。

摘　　要：绝缘裕度是变压器设计中重要指标之一,合适的绝缘裕度值可以保证变压器运行中不会发生主绝缘问题。为此以绝缘裕度为优化目标,首先采用ANSYS参数化建模语言(ANSYS parametric design language,APDL)完成对变压器的建模剖分求解,利用全域扫描法获得变压器的绝缘裕度值;然后根据中心复合设计法开展试验,采用响应面法构建绝缘裕度系数与其相关变量的响应面函数,最后利用数学规划法,求得此函数在各变量相互配合下的最优解。优化后的绝缘裕度比优化前提高了16.53%。为了验证响应面法的有效性,采用遗传算法对绝缘结构进行优化,结果验证了响应面法的有效性。相比于全局寻优方法,响应面法在保证精度的同时提高了优化效率,可为变压器绝缘设计提供参考。Insulation margin is one of the important indexes in transformer design,and the appropriate value of insulation margin can ensure that the main insulation problem will not occur in the operation of transformer.In this paper,the insulation margin is taken as the optimization objective.Firstly,the ANSYS parametric design language(APDL)is used to complete the modeling of a transformer,and the insulation margin coefficient of the transformer is obtained by using the global scanning method.Then,the central composite design(CCD)method is adopted to carry out the tests and the response surface function of the insulation margin coefficient and its related variables is constructed by using the response surface method.Finally,the optimal solution of the function under the coordination of various variables is obtained by using the mathematical programming method.The insulation margin after optimization is 16.53%higher than that before optimization.In order to verify the effectiveness of the response surface method,a genetic algorithm is used to optimize the insulation structure.The results verify the effectiveness of the response surface method.At the same time,compared with the global optimization method,the response surface method improves the optimization efficiency while ensuring the accuracy.This method can provide reference for transformer insulation design.

关 键 词：绝缘裕度 APDL 响应面法 结构优化 变压器 

分 类 号：TM41[电气工程—电器]