电压波形不再保持理性的正弦变化波形称为电压畸变。电压畸变率是指各次谐波有效值平方和的根对基波有效值的百分比。国内对于6～10KV供电电压畸变不超过4%，0.38KV电压畸变不超过5%。
电气化铁道 关键词： 电能质量；同步误差；离散傅立叶变换；频率；电压畸变 [gap=476]Keyword： power qualities; synchronization errors; DFT; frequency; voltage aberrance
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电压畸变率 THDu ; THDV ; VTHD ; THVD
输入电压畸变 input voltage distortion
各自谐波电压畸变 Individual Harmonic Voltage distortion
谐波电流和电压畸变 Harmonic currents and voltage distortion
总谐波电压畸变率 VTHD
电压总谐波畸变率 THDU ; total harmonic distortion ; THD
电压总谐波畸变 VTHD
的电压电流谐波畸变率 Total Harmonic Distortion ; THD
电压总畸变率 Distortion rate of voltage
The existence of these nonlinear loads in power systems will result in bad power quality, such as voltage distortion, voltage fluctuation, flicker and three-phase unbalance.
这些非线性负荷的存在,往往导致电网发生电压畸变、电压波动、电压闪变和三相不平衡等电能质量问题,使电网供电质量降低、甚至恶化电网运行状况。
参考来源 - 电能质量监测与评估系统的研究与开发·2,447,543篇论文数据，部分数据来源于NoteExpress
非线性负载能导致反常的导体发热和电压畸变。
Nonlinear loads cause abnormal conductor heating and voltage distortion.
而畸变的负荷电流引起整个系统中母线电压畸变。
The distorted load current then causes distorted bus voltages to appear throughout the system.
然而，对工厂实用电源可能包括由外部电源引起的额外的谐波电压畸变量。
However, the utility source for a plant may contain additional harmonic voltage distortion arising from external sources.
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