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为了更有效地进行电脉冲除冰系统(EIDI)的电路参数设计,利用能量守恒原理研究了电脉冲除冰中系统振动能量的非线性等效负载,并推导了与系统参数相关的非线性等效电路模型.在ANSOFT Maxwell电磁场有限元环境中建立了轴对称圆柱型脉冲线圈的三维瞬态电磁场仿真模型,采用数值拟合的方法得到在除冰激励周期内法向电磁力的表达式;在此基础上研究了铝板蒙皮在该脉冲力作用下的形变表达式和电磁力做功情况.最终利用非线性等效电路模型设计了不同气隙间距下的储能元件电路参数,且通过实验验证了本文方法的正确性,为电脉冲除冰系统的设计提供了理论依据.
In order to design the circuit parameters of EIDI more effectively, the non-linear equivalent load of system vibration energy in electro-pulse de-icing is studied by the principle of energy conservation, and the nonlinearity and so on Efficient circuit model is established in the finite element environment of ANSOFT Maxwell electromagnetic field. A three-dimensional transient electromagnetic field simulation model of an axially symmetric cylindrical pulse coil is established. The normal electromagnetic force expression during the deicing stimulation period is obtained by numerical fitting. Based on the study, the deformation of the aluminum skin under the impulsive force and the work of the electromagnetic force are studied.According to the nonlinear equivalent circuit model, the circuit parameters of the energy storage device with different air gap spacing are finally designed and verified by experiments The correctness of the method proposed in this paper provides a theoretical basis for the design of the electrical pulse deicing system.