periodic current

Departing from calculated formula of periodic current and voltage effective value, two frequently sinusoidal pulse waves in electronic circuit have been analyzed. The analysis process is simple. This paper has some reference value for solving technical problem.

本文从周期性电流和电压有效值的计算公式出发，分析了电子电路中两种常见的正弦脉冲波，分析过程简单明了，对解决有关技术问题有一定借鉴价值。

And When the load current is a periodic current, integral in a cycle for absolute value of subtracting the fundamental reactive current from the load current is the least.

和当负载电流为周期电流时，负载电流与基波无功电流差的绝对值在一个周期内的积分值最小。

The periodic current subtransient attenuation of generator is taken into consideration, when calculating the short-circuit of generators, and the decay time constant is corrected in view of the line impedance when the short-circuit point is away from the bus-bar. 2.

在计算发电机短路电流时，考虑周期分量的超瞬态衰减，考虑短路发生在远离汇流排位置时线路阻抗对短路电流的影响，并对周期分量衰减时间常数进行修正。