摘要
为了提高变压器顶层油温的预测精度,本文提出了一种考虑日照辐射强度和油非线性时间常数变化的顶层油温预测模型。通过拉丁超立方抽样和KS检验,进行了多参数灵敏性分析。结果证明,变压器的额定负载下的顶层油温是影响变压器顶层油温预测的最敏感参数,相比Radakovic提出的IEEE顶层模型,改进的顶层油温模型的预测精度更高。
In order to improve the prediction accuracy of transformer top-oil temperature,a prediction model of top-oil temperature considering the variation of sunshine radiation intensity and oil nonlinear time constant is proposed in this paper.Then,through Latin hypercube sampling and KS test,multi-parameter sensitivity analysis is carried out.The results show that the top-oil temperature under the rated load of the transformer is the most sensitive parameter to affect the prediction of the top-oil temperature of the trans-former and the improved top-oil temperature model is more accurate than the IEEE top-oil temperature model proposed by Radakovic.
作者
霍伟锋
李应光
陈斌
刘威
韦乾龙
钱瞳
HUO Wei-feng;LI Ying-guang;CHEN Bin;LIU Wei;WEI Qian-long;QIAN Tong(Dongguan Power Supply Bureau of Guangdong Power Grid Corporation,Dongguan 523000,China;School of Electric Power,South China University of Technology,Guangzhou 510641,China)
出处
《变压器》
2021年第11期16-20,共5页
Transformer
基金
广东电网有限责任公司科技项目资助(项目编号:031900KK52180153)。
关键词
油浸式电力变压器
顶层油温
非线性时间常数
多参数灵敏性分析
Oil-immersed power transformer
Top-oil temperature
Nonlinear time con-stant
Multi-parameter sensitivity analysis
