如果输入端的交流电压很大，其一部分信号被整流，于是在被测的直流信号中产生了误差。
If the AC voltage at the input is large, part of this signal is rectified, producing an error in the DC signal being measured.
该电源输入单一交流电压和频率，内部经过交流对直流；直流对交流的变流整流转换后，自行产生-非常稳定纯净的正弦波。
The single AC power input voltage frequency, the internal AC to DC after; DC converter rectifier exchange conversion, self-produced - very stable, pure sine wave.
这些误差源包括热电动势、由射频干扰(RFI)经过整流而产生的偏置量以及电压表输入电路中的偏置量。
These sources include thermoelectric EMFs, offsets generated by rectification of RFI (radio frequency interference), and offsets in the voltmeter input circuit.
仿真和实验结果表明该系统能够有效抑制三相整流电路交流侧输入电流的谐波，降低输出电压纹波，减小整机体积。
The simulation and experimental results show that this system can restrain harmonics of three-phase rectifier of AC-side input current, reduce the output voltage ripple and decrease the volume.
电网输入电压三相不平衡会严重影响三电平PWM整流器的性能。
The imbalanced three-phase grid voltage will seriously affect the three-level PWM rectifier performance.
输入电流的谐波量有赖于整流器的电压获取值m，即输出电压和输入电压的比值，也有赖于操作人员的控制。
Harmonic content of the input currents depends on the rectifier voltage gain m defined as ratio of the output voltage and the input line voltage as well as the employed control.
建立了三相电压型PWM整流器电流控制数学模型，输入电流在静止坐标系下实现了固定开关频率的解耦控制。
In this paper, a current control mathematical model is established with fixed switching frequency for three-phase pulse width modulated (PWM) converter.
建立了三相电压型PWM整流器电流控制数学模型，输入电流在静止坐标系下实现了固定开关频率的解耦控制。
In this paper, a current control mathematical model is established with fixed switching frequency for three-phase pulse width modulated (PWM) converter.
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