The structure of the sine wave 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。
The power system harmonic is the voltage sine wave 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。
A sine wave alternating voltage signal is generated synchronously in the presence of gear teeth made of carbon steel, magnetic stainless steel, or iron (ferrous metal).
阿正弦波交流电压产生的同步信号中的齿轮碳钢，不锈钢磁性，或铁(黑色金属)提出的存在。
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