A Novel Approach to Conduct Resistance Calculation Considering Skin Effectp

2017 2nd Asia Conference on Power and Electrical Engineering

能源学;电工学

Jiang, Li-Min^1 ; Yan, Hua-Guang^1 ; Meng, Jun-Xia^1 ; Yin, Zhong-Dong^2 ; Lin, Zhi^2

China Electric Power Research Institute, Haidian District, Beijing

100192, China^1

State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Changping District, Beijing

102206, China^2

关键词: Electromagnetics;    Frequency dependent;    Harmonic loss;    Harmonic pollution;    Nonlinear load;    Physical experiments;    Resistance calculation;    Semi-infinite plane;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/199/1/012114/pdf
DOI  :  10.1088/1757-899X/199/1/012114

来源: IOP

【 摘 要 】

With the rapid growth of power electronics, increasingly more non-linear loads access the power grid, aggravating harmonic pollution. To calculate harmonic loss, it is necessary to calculate the resistance of a conductor considering skin effect, however, most method base on the current density on a semi-infinite plane. Based on the principle of engineering electromagnetics, this paper derived the distribution of current density on a finite plane, which is also suitable for the transmission line, and therefore developed a more practical and precise enough version of frequency-dependent resistance of current carrying bar or transmission line considering skin effect. In order to make this method more convincing, a corresponding physical experiment was also conducted, proving the feasibility of this method.