This paper proposed the method of lightning overvoltage real-time monitoring of generators, which has combined the multiconductor transmission line theory and FFT.

• 本文提出的大型发电机雷电过电压在线监测分析方法，采用实时性较好的信号测量方法，将多导体传输线理论与快速傅立叶变换相结合进行信号处理和计算，具有一定的现实意义。