total harmonic distortion
英 [ˈtəʊtl hɑːˈmɒnɪk dɪˈstɔːʃn]
美 [ˈtoʊtl hɑːrˈmɑːnɪk dɪˈstɔːrʃn]
网络 总失真因数; 失真度; 总谐波失真率; 总谐波失真; 谐波失真
双语例句
- The SPEC-4 actually had lower total harmonic distortion and lower intermodulation distortion than its more expensive brother.
在SPEC-4实际上有较低的总谐波失真低于其更昂贵的兄弟互调失真。 - As the non-linear nature of the traditional transformer, the input line currents have significant harmonics and high total harmonic distortion ( THD).
然而，由于传统的整流装置本身的非线性特性，会使网侧输进电流严重畸变，谐波含量多。 - Two different modulation methods are used to modulate the inverter and their advantages and disadvantages are compared, including total harmonic distortion ( THD) of voltage and current.
然后使用不同的调制方法对逆变器进行调制，并比较两种方法的优缺点，包括输出电压以及电流的总的谐波失真比率。 - Experimental results show that the proposed multilevel inverter has a low total harmonic distortion ( THD) with desired function.
从实验结果证明兼具电池平衡之多阶式换流器确实具有低的谐波失真与电池平衡之功能。 - Total Harmonic Distortion and Dynamic Range of Digital Recording System and their Measurement
数字录放音系统的总谐波失真与动态范围及测量 - Based on the integer period sample FFT algorithm, a lowest total harmonic distortion ( THD) method for determining the base period is proposed in this paper, and the derivation is theoretically given.
在整周期采样的FFT算法的基础上，提出了确定基波周期的总谐波畸变（THD）最小的方法，并作了误差分析。 - The detecting method of DVR is different from harmonic and reactive current detecting methods. It need detect not only total harmonic distortion but also the difference between fundamental wave component and reference value.
DVR的检测方法与谐波、无功电流的检测不同，不但需要检测出除基波分量之外的总畸变分量，还要检测出基波分量与基波基准值之差。 - The principle of direct digital synthesizing sine wave is introduced, the frequency spectrum of synthesized sine wave is analyzed, and the method measuring total harmonic distortion ( THD) of synthesized sine wave using least square is emphasized.
介绍了直接数字合成正弦波的基本原理，并对合成正弦波的频谱进行了分析，重点讨论了利用最小二乘法测量合成正弦波的谐波失真度（THD）的方法。 - Analysis of the Sine Signal Distortion and the Total Harmonic Distortion
正弦波形畸变和失真度的分析 - For public distribution system the total harmonic distortion is a clear measure of supply quality.
在公用供电系统中，整体的谐波失真是供电质量的一个重要指标。 - The experiment results show input power factor, distortion factor, crest factor, total harmonic distortion and harmonic components.
给出了输入功率因数、畸变因子、峰值系数、总谐波畸变率和谐波分量的实验结果。 - It deeply analyzes composition of noise and its effected factor, and introduces how to measure the signal-to-noise ratio, total harmonic distortion and effective number bits of the ADC.
深入分析了A/D变换器的噪声组成及其影响因素；介绍了信噪比、谐波失真度、有效位数的测量与实现。 - Detailed power distribution and power loss analyses were given. Experimental and theoretical results show that this VSI has lower switching loss and lower Total Harmonic Distortion ( THD).
给出了详细的功率分配和功率损耗分析，实验和理论结果均表明，这种电压源逆变器具有低开关损耗和低总谐波失真度的特点。 - In this paper, the meanings of dynamic range and total harmonic distortion of digital recording system and their measurement principles are discussed.
本文讨论了数字录放音系统的动态范围和总谐波失真的意义及其测量原理。 - The dynamic range and total harmonic distortion of digital recording system are different from analog recording system.
数字录放音系统的动态范围和总谐波失真与模拟录放音系统相比是有差别的。 - This paper analyzes the influence of the reactive power and power factor measurement by the distortion waveform. Points out the accuracy evaluation of true reactive power and the total harmonic distortion measurement problems.
本文就波形失真对无功功率和功率因数测量的影响进行了分析，提出对真无功功率准确度的评估和总谐波畸变的测量问题。 - Using the digital signal techniques, we can get the model of total harmonic distortion ( i.e. THD) of the nonlinearity device.
运用了数字信号处理技术，可以得到测试非线性器件总谐波失真（THD）的方法。 - The total harmonic distortion ( THD) can be reduced by the instantaneous voltage feedback control.
采用电压瞬时值反馈降低了输出电压波形的总谐波量。 - In square wave voltage source inverter, total harmonic distortion ( THD) is not only the function of duty cycle, but also with response to load's type.
对于方波型逆变器，总谐波失真度（THD）不仅仅随占空比变化，而且受负载类型的影响。 - In addition, harmonic components and total harmonic distortion ( THD) of the output voltage are analyzed.
分析了应用该算法以后逆变器输出电压中谐波畸变（THD）的情况，以及主要谐波成分百分含量的变化情况。 - The controlling of three-phase converter is treated as the mathematical optimizing problem. The Genetic Algorithm is applied to balance the THD ( total harmonic distortion) and the switching loss.
将三相逆变器控制的求解问题转化为数学函数的优化问题，采用遗传算法是解决数学优化的较好的方法，并能解决目前许多控制策略中THD（谐波畸变率）和开关损耗不能兼顾的问题。 - Through analyzing traction bus current, traction bus voltage before and after compensation, the relationship between three-phase current unbalance degree, traction current total harmonic distortion rate and compensation degree is presented.
并通过分析平衡牵引变压器补偿前后的牵引母线电流、牵引母线电压，得出三相电流不平衡度、牵引电流总谐波畸变率与补偿度之间的关系。 - According to the characteristic of output power in induction hearting power supply, the fundamental voltage content in output waveform of inverter should be increased as high as possible, which decreases total harmonic distortion ratio of output voltage, for improving the utilization ratio of inverter power supply.
通过对感应加热电源输出功率特性的分析，为提高逆变电源容量的利用率，应尽可能提高感应加热电源逆变器输出电压中的基波含量，减小输出电压的谐波畸变率。 - Second, this paper determines the evaluation function, which the target is the total harmonic distortion rate of the output voltage and current, and builts the three-level and five-level inverter models in Matlab/ Simulink based on the PSO algorithm.
其次，本文建立了以输出电压和电流总谐波畸变率为目标的评价函数，并在Matlab/Simulink中搭建了基于PSO算法的三电平和五电平逆变器谐波抑制模型。 - This paper discusses this parameter from three parts: grid current total harmonic distortion, the dc component of the grid current and the power factor. Finally, factors affecting the electricity quality are analyzed.
供电电能质量是衡量并网逆变器性能的一个重要参数，本文主要对进网电流总的谐波畸变的影响因素进行了分析，此外也对电流直流分量、网侧功率因数进行了研究分析。 - The primary experiment result is given, and the power factor in network side, the total harmonic distortion and the efficiency are tested and analyzed.
给出主要的实验结果，对样机网侧功率因数、总谐波失真和效率进行测试分析。 - Experimental results show that the inverter control system is designed reasonably. SVPWM technique which is adopted in the elevator with energy feedback system can raise the energy utilization of the DC voltage for inverter circuit feedback, and reducing the total harmonic distortion of the inverter power.
实验结果表明，该逆变电源控制系统设计合理，在电梯能量回馈系统中采用SVPWM技术，既能提高能量回馈逆变电路对直流电压的利用率，又能减少逆变电能总谐波失真。 - Online feedback compensation method is derived form above theoretical analysis, which suppresses effectively harmonic content and reduces Total Harmonic Distortion of current and torque ripple of driving system for electric vehicle.
基于该理论分析推导出在线反馈补偿法，用此补偿法能对产生的谐波含量进行有效抑制，减小相电流的畸变率，降低电动汽车驱动系统的转矩脉动。 - The power factor correction makes the system power factor and total harmonic distortion performance well. Controller can precisely control the LED current upon primary side regulated ( PSR). It spare optocoupler and secondary side regulated control circuit.
由于前置了功率因数调整器，使系统的功率因数和总谐波失真表现良好，而基于原边控制的控制器能够精确的控制LED电流，并且省去了光耦和二次测控电路，有效的减小了体积。