A Top-oil Temperature Prediction Method for the Split Transformer Based on PSOGSA

2018 3rd Asia Conference on Power and Electrical Engineering

能源学;电工学

Xin, Zi^1 ; Wei, Bengang^1 ; Liang, Yongliang^2 ; Xu, Yanshun^2 ; Guo, Ruochen^2 ; Lou, Jie^2

Electric Power Research Institute, SMEPC, 171# Handan Rd., Shanghai, China^1

School of Electrical Engineering, Shandong University, 27# South Shanda Rd., Jinan, China^2

关键词: Complicated structures;    High-precision;    Non linear;    Oil viscosity;    Radiation principle;    Temperature rise;    Thermal circuits;    Top oil temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/366/1/012060/pdf
DOI  :  10.1088/1757-899X/366/1/012060

来源: IOP

【 摘 要 】

Because of the complicated structure of cooling system, the heat radiation principle and top-oil temperature prediction of the split transformer is attracting more and more attention. This paper proposes a top-oil temperature prediction method for split transformer based on PSOGSA. Based on the thermal circuit of ordinary transformers, a thermal circuit for split transformers is proposed taking the heat radiation principle into account. Besides, the model is modified with the consideration of the non-linear heat resistance, load ratio and oil viscosity. Further, the parameters of the model are optimized by PSOGSA. Finally, the method proposed is tested by on-site temperature-rise experiment. The test results prove that the method could provide a high-precision prediction result of the top-oil temperature for split transformer.