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- voltage harmonic distortion 电压波形正弦性畸变率
- The effect is termed harmonic distortion. 这种作用就称为谐波畸变。
- The series active power filter( SAPF) can compensate the harmonic distortion caused by voltage type harmonic source. 串联型有源电力滤波器可较好地补偿电压源型谐波源.
- Besides, the resonant condition is monitored by minimizing the total harmonic distortion(THD) of the voltage applied to the device terminals. 此外，利用最小化待测设备之端电压总谐波失真度，进而监控系统谐振情况。
- The concept of power quality includes the quality of the supplying voltage with respect to, for instance, voltage sag, imbalance, harmonic distortion, voltage fluctuation and flicker, etc. 质量包括电源电压的质量的能力的概念与有关，例如，电压下跌，不平衡，谐波失真，电压波动并且摇曳，等等
- Simulation and experiment show the UPS system has the merits of strong ability with three-phase unbalanced load,low total harmonic distortion(THD) of output voltage,high work efficiency. 通过仿真和实验结果表明,该UPS系统具有带三相不对称负载能力强,输出电压波形总谐波失真度(THD)小,工作效率高等优点。
- Simulation and experimental results demonstrate that the output fundamental voltage can be accurately controlled with small total harmonic distortion and good input/output current quality. 仿真和实验结果表明, 双级矩阵变换器过调制时输出电压基波可以精确控制，谐波畸变率比较小，输入输出电流波形质量好。
- There are now two criteria that are used to evaluate harmonic distortion. 现有两个准则可用来评价谐波畸变。
- Therefore, it is demonstrated that the shunt or series APF should be used for compensating the current or the voltage harmonic source. 从而说明对电流型或电压型谐波源进行谐波补偿，应该分别使用并联型或串联型APF。
- Li Bin,Li Yongli,Zeng Zhi-an,et al.Study on single-pole adaptive reclosure based on analysis of voltage harmonic signal[J].Power System Technology,2002,26(10):53-57(in Chinese). [2]李斌;李永丽;曾志安;等.;基于电压谐波信号分析的单相自适应重合闸[J]
- In layman terms, harmonic distortion adds a slightly thick or buzzy quality to music. 在外行看来，谐波失真添加了一点浊音或鸣音音效。
- Li Bin,Li Yongli,Zeng Zhian,et al.The study on single-pole adaptive reclosure based on voltage harmonic single analysis[J].Power System Technology,2002,26(10):53-57(in Chinese). [10]李斌;李永丽;曾治安;等.;基于电压谐波信号分析的单相自适应重合闸[J]
- It affects the SNR (signal-to-noise ratio) and the THD (total harmonic distortion) of a conversion. 它影响转换的SNR（信噪比）和THD（总谐波失真）。
- This preliminary paper mainly discusses the effect of harmonic distortion by CFL on the quality of electric prwer systems. 本文通过在室验室，典型家庭，餐厅，大型商场等不同场合，不同条件下，测试不同数量的CFL点燃后的电压谐波畸变，电流谐波畸变，功率因素以及中性线电流等参数，分析CFL对电网质量的影响。
- The most common ways are to specify Harmonic Distortion, Total Harmonic Distortion (THD), or Total Harmonic Distortion Plus Noise (THD + N). 最通用的方法是指明谐波失真，总体谐波失真(THD)，或总体谐波失真加噪声(THD+N)。
- The power transfer quality factor of PFC is above 0.98 and the total harmonic distortion of the line current is less than 5%. 准谐振PFC的功率传输品质因数在0.;98以上，电流总谐波畸变率小于5%25。
- Further more, the sample time can be shortened in this case, which can reduce the Total Harmonic Distortion (THD) and make the output waveform better. 仿真实验结果表明：采用该方法后，降低了输出波形畸变率，电压电流波形更加理想，为实现更好的逆变效果提供了条件。
- Reducing the total harmonic distortion (THD) of the magnet current in the parallel resonant network is the key technique for the magnet current tracking accuracy. 在并联型怀特电路中，降低磁铁电流的高次谐波含量，即电流总谐波畸变率(THD)是保证磁铁电流跟踪精度的关键所在。
- Electric guitar players use harmonic distortion - often lots of it - to turn a guitar's inherent plink-plink sound into a singing tone having great power and sustain. 电子吉他手运用（常常使用）谐波失真，以使吉他本来的叮玲声转变成更雄壮、更持久的蜂鸣音。
- The relationship among input current harmonic distribution and power factor, total harmonic distortion, psophometric interference current, are discussed. 在此基础上进一步探讨了变流器功率因数、输入电流总谐波畸变率以及等效干扰电流等与谐波分布之间的关系。
