一种求解钢芯铝绞线交流电阻动态变化的计算方法
By establishing an internal electromagnetic field model of steel-cored aluminum stranded wire and using Bessel functions to solve for the electric field strength and current distribution, an AC resistance expression is derived. This solves the problem that the influence of parameters was not considered in the existing technology, and achieves more efficient and accurate AC resistance calculation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
- Filing Date
- 2023-03-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing methods for calculating AC resistance fail to directly consider the influence of the physical parameters of steel-cored aluminum stranded wire on AC resistance, resulting in inaccurate calculations.
By establishing an internal electromagnetic field model of aluminum-coated steel wire, the vector solution of the electric field strength is obtained using the Bessel function form. The current distribution is calculated and the AC resistance of the conductor is obtained. The expression for the AC resistance of aluminum-coated steel wire is derived using the Bessel equation.
It provides a clear calculation method that can intuitively reflect the influence of each parameter on AC resistance, thus improving the accuracy and efficiency of the calculation.
Smart Images
Figure CN116502398B_ABST