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在过电压保护中常遇到非常复离的过渡过程问题。例如当雷直击于输电线沿输电线有电波袭入变电所时,由于变电所内有电容、电感、连接用线段以及非线性元件(例如避雷器)等,所以要求出变电所中各点电位,就要解包括分布常数、集中常数及非线性常数组成的回路中的过渡过程,而且在过程中回路常数还会突破(例如火花隙放电),这是非常困难的。实际上我们还要求计算逆反问题,即已知变电所中各点允许电位值去求相当的袭入波的大小
In the over-voltage protection often encounter very complex transition problem. For example, when the lightning strikes the power transmission line along the transmission line with radio waves into the substation, due to the substation with capacitors, inductors, connecting lines and non-linear components (such as arresters), so the requirements of the substation Potential, it is necessary to solve the transition process in the loop including distribution constant, concentration constant and non-linear constant, and the loop constant will be broken through during the process (for example, spark gap discharge), which is very difficult. In fact, we also asked to calculate the inverse problem, that is, the known point in the substation to allow the potential value to find the size of the incoming wave