finite harmonic impedance 有限谐波阻抗
harmonic impedance method 谐波阻抗法
equivalent harmonic impedance 等效谐波阻抗
harmonic impedance equivalence 谐波阻抗等值
Programmable Harmonic Impedance 运用可控谐波阻抗
harmonic impedance and admittance 谐波阻抗和导纳
multi-harmonic impedance matching 多谐波阻抗匹配
Harmonic Impedance for Load Components 负荷设备的谐波阻抗
The former is based on injecting (inter)harmonic currents into or switching some branch at the point where the (inter)harmonic impedance is to be measured. Theses method may cause harmful influences on the operation of power system.
“干预式”方法主要通过向系统强迫注入谐波电流或间谐波电流，或是开断系统某一支路来测量谐波阻抗，该方法有可能对系统稳定运行造成不利影响，因而不能广泛使用。
参考来源 - 基于畸变波形同步分层估计谐波阻抗·2,447,543篇论文数据，部分数据来源于NoteExpress
Applying feedforward control of harmonic voltage to hybrid active power filter of finite harmonic impedance can restrain line harmonic voltage.
有限阻抗型混合有源电力滤波器中应用电压谐波前馈控制，能加强对网侧电压的谐波抑制。
The harmonic impedance on two sides of converters in HVDC transmission system is important in determinating the harmonics due to GIC (geomagnetic induced currents).
高压直流（HVDC）输电换流器两侧的谐波阻抗对确定地磁感应电流（GIC）引发的谐波有重要意义。
On the basis of active power filter linear shunt transformer harmonic impedance control, a novel principle for high voltage alternate power distribution systems is proposed.
针对高压交流配电系统，提出一种基于线性并联变压器谐波阻抗控制的并联型有源电力滤波器新原理。
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