The structure of the sinewave inverter is given, the working principles of the control circuit and voltage feedforward are analyzed.
给出了正弦波逆变器的主电路结构，分析了控制电路及电压前馈的工作原理。
2
The power system harmonic is the voltagesinewave of power system get distortion; electric locomotive power will have 0 to 50 harmonics.
电力系统的谐波是电力系统电压正弦波形产生畸变，电力机车用电会产生0次到50次谐波。
3
A sinewave alternating voltage signal is generated synchronously in the presence of gear teeth made of carbon steel, magnetic stainless steel, or iron (ferrous metal).