考虑船体涡流影响的舰船消磁线圈电感计算方法  

Calculation Method for the Inductance of the Ship Deperming Coils Considering the Hull Eddy Current Effect

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作  者:周国华[1] 唐烈峥 孙兆龙 吴轲娜 李志新[1] ZHOU Guohua;TANG Liezheng;SUN Zhaolong;WU Kena;LI Zhixin(School of Electrical and Information Engineering,Naval University of Engineering,Wuhan 430033,Hubei,China)

机构地区:[1]海军工程大学电气工程学院,湖北武汉430033

出  处:《兵工学报》2022年第11期2866-2874,共9页Acta Armamentarii

基  金:国家自然科学基金项目(51107145)。

摘  要:舰船消磁线圈的电感值是影响消磁电源系统设计的重要因素。针对舰船结构复杂、船体涡流去磁效应显著等特点,提出一种基于时谐磁场仿真的消磁线圈电感计算方法,利用三维时谐磁场仿真提取线圈端电压和电流的实部和虚部,并根据阻抗相量表达式确定线圈电感值。重点分析壳体涡流的趋肤效应对电感计算结果的影响规律,提出壳体网格优化控制方法,计算实尺寸航母消磁线圈的电感,并对其影响因素进行分析。分别设计空心线圈电感解析计算模型和航母消磁线圈电感物理缩比模型,并对缩比模型电感进行实测。研究结果表明,空心线圈电感计算相对误差仅为1.8%,缩比模型的自感和互感计算的最大相对误差分别为7.1%和17.2%,有力验证了所提方法的有效性,为舰船消磁电源的设计提供了参考依据。Deperming power systems are designed based on the inductance of the ship deperming coils.In view of the complex ship structure and the significant demagnetization effect of the hull eddy current,an approach for calculating the inductance based harmonic magnetic analysis is presented.A 3-D harmonic magnetic analysis is conducted to extract the real and imaginary parts of the coil terminal voltages and currents,based on which the coil inductances can be determined according to the impedance phasor expression.The influence of the skin effect of the shell eddy current on the calculation is emphatically analyzed and the shell mesh further optimized.The inductance of the deperming coils on the actual scale aircraft carrier are calculated,and its influencing factors discussed.The analytic calculation model of the air-core coil inductance and the physical scale model of the aircraft carrier deperming coil inductance are designed,and the scaled model inductance is measured.The results show that the relative error of the air-core coil inductance calculation is merely 1.8%,and the maximum relative errors of the self-inductance and mutual inductance calculations of the scaled-down model are 7.1%and 17.2%,respectively.This convincingly validates the effectiveness of the proposed method and provides a reference for the design of power source for ship deperming.

关 键 词:舰船 消磁线圈 电感计算 涡流 趋肤效应 

分 类 号:U665.18[交通运输工程—船舶及航道工程]

 

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