背景谐波，通常用谐波电压源来描述，背景谐波电压是谐波研究中的一个重要特征参数。
背景谐波电压 Background Harmonic Voltage
The AC system equivalent impedance and background harmonic distribution characteristic are very important for powe system analysis and design, especially for HVDC system.
在电力系统分析与设计中,特别是对于直流输电系统的设计,交流系统的谐波等值阻抗与系统中背景谐波电压的分布特性,是两个非常重要的参数。
参考来源 - 交流系统谐波阻抗等值与背景谐波分析·2,447,543篇论文数据，部分数据来源于NoteExpress
该方法较全面地考虑了谐波治理、无功补偿、背景谐波、失谐、与电网阻抗的串并联谐振等问题。
It is thoroughly considered in this new method that harmonic attenuation, reactive power compensation, mistuning, background harmonic and resonance with power line impedance.
背景谐波电压不仅与电网中谐波源强弱、网压变化有关，而且与电网容量、结构有关。由于其直接决定电网承受畸变负荷的能力，所以有必要对各种电网的背景谐波状况作全面了解和测量。
The background harmonic voltage is related with not only the power of harmonic sources and variation of power line voltages but also the power system structure and capability.
谐波雷达的特点是能够在杂波背景中有效探测金属结目标。
Harmonic radars are characterized by effectively detecting metallic junction targets in clutter background.
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