表面磁场和相位电流传感钢带包裹的三核MV电缆的磁场和相位电流传感
Zuhan Zhao1, Jixiong Xiao1, Hang Li2
1Hubei Engineering Research Center for Safety Monitoring of New Energy and Power Grid Equipment, Hubei University of Technology, Wuhan 430068, China.
Sensors (Basel, Switzerland)
|April 26, 2025
概括
准确测量电缆中的三相电流需要考虑钢带屏蔽. 一个新的模型和差异进化算法通过纠正这种磁场屏蔽效应来精确估计电流.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 表面磁场测量对于三核电缆分析至关重要.
- 钢带包装在电缆中可以屏蔽磁场,使精确的电流估计和故障检测变得复杂.
研究的目的:
- 开发一个模型来评估钢带屏蔽对磁场的影响.
- 为了准确地逆转磁场测量,以确定三相电流.
主要方法:
- 开发了一个模型来量化钢带的磁性屏蔽效应.
- 使用微分进化算法来逆转磁场数据以计算三相电流.
主要成果:
- 拟议的模型显示分析和数值解决方案之间的差异不到5%.
- 增加钢带厚度与更高的屏蔽系数相关.
- 不同进化算法准确估计了当前的幅度和相位,幅度的最大误差为4.83%,相位的最大误差为8.01°.
结论:
- 开发的模型有效地评估了钢带磁屏蔽.
- 不同进化算法提供了准确的三相电流估计,即使存在屏蔽.
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