harmonic content
英 [hɑːˈmɒnɪk ˈkɒntent]
美 [hɑːrˈmɑːnɪk ˈkɑːntent]
网络 谐波内容; 泛音; 谐波含量
双语例句
- Adjust the frequency, volume, and harmonic content and you can see and hear how the wave changes.
调整频率、体积和谐波内容，你就可以看到和听到波是怎麽变化的。 - The air moves through the silver plating much quicker than the brass – and has a far richer harmonic content.
气通过镀银的表面更快于黄铜漆的表面――拥有非常饱满的，谐和的音质。 - A new mode to achieve the condition by digital feedback of harmonic compensation was introduced, the waveform of magnetic flux was analyzed, and the harmonic content in the wave was obtained.
利用数字式谐波反馈原理，通过对磁通波形的分析获得了磁通波形中的谐波含量，然后在电源输出端补偿与磁通波形中谐波幅值相反、相位相同的谐波，使磁通波形得到了改善。 - The influence of power factor on the harmonic content of the colour TV set
彩色电视机的谐波含量对功率因数的影响 - Its principle is analyzed in this paper, and the relation of phase shifted angle, the amplitude of each harmonic content and the THD is also analyzed in detail.
本文分析了工作原理，并对移相角与输出各次谐波的幅值，THD的关系做了详细的理论分析。 - In the proper attention to both the foundation of harmonic content, the reactive power compensation quantity and the harmonic filtration rate, considering the investment cost as well as the filter effect, established the filter structure and the form, and has given the design example.
在兼顾谐波含量、无功功率补偿量及谐波滤除率的基础上，考虑到投资成本以及滤波效果，确立了滤波器的结构和形式，并给出了设计实例。 - Harmonic content has become an important symbol of power quality. So, harmonic measurement in power system is of important significance.
谐波含量已经成为衡量电能质量的重要参数，对供电系统中的谐波检测具有重要的意义。 - Application of electronic products in power system cause the increase of harmonic content, and the harmonics worsens the quality of electric energy. The measurement and analysis of harmonic is the foundation of harmonic suppression.
各种电子产品在电力系统中的大量应用使系统中谐波含量增加，谐波的产生使电能质量恶化，谐波的测量和分析是谐波治理的基础和前提。 - In recent years, the application of power electronic devices improves the electrification and automation level, but it also makes the voltage and current distortion more serious. This also causes the increase of harmonic content and complexity.
尤其是近年来大量电力电子器件的应用在提高电气化和自动化水平的同时，也引起严重的电压电流畸变，使电力系统中谐波含量增多、复杂性增强。 - It 'sof great significance to study how to reduce the harmonic content of the airborne AC grid.
研究如何降低机载交流电网的谐波含量具有重要的意义。 - In short, the inverter AC output voltage and frequency stability precision are higher, and total harmonic content THD of voltage waveform is lower and sinusoidal characteristics are better.
总之，逆变器交流输出电压和频率稳定精度均较高，电压波形的总谐波含量THD较低且正弦特性较好。 - The SPWM signals which are used as control signals of inverter bridges can produce high quality sine waveform with less harmonic content.
SPWM信号作为逆变桥的控制信号可产生谐波含量少，波形质量高的正弦波形。 - The first method is to increase the switching frequency to reduce the harmonic content of output.
第一种方法是用提高开关频率的方法来改善输出中的谐波。 - But the inverter output has high harmonic content in the traditional control system and had adversely affected for power and speed control system, so high-performance frequency converter must be needed.
在传统的变频调速系统中，逆变器的输出谐波含量大，对电网和调速系统的影响大，必须采用高性能变频器加以解决。 - The comparison of inrush current and harmonic content will be shown in the following chapters to the different closing angle.
对单相不同合闸角度产生的励磁涌流及谐波含量都进行了对比。 - After all the three-level can produce five kinds of line voltage level, Harmonic content of output voltage and current is far less than two-level rectifier under the same control.
而且三电平脉冲整流器能产生五种电平的线电压，在相同开关频率及控制方式下，其输出电压和电流中的谐波含量远小于传统的两电平脉冲整流器。 - In addition, the article analyses current distortion phenomena and increased harmonic content caused by the dead-time and voltage drop of power switch component.
此外，分析了死区延时时间和功率开关器件的电压降所引起的变频器输出电流畸变现象及其增加的谐波含量。 - At the same time, the problem of the low electrified railway power factor, high harmonic content, negative sequence and so on are exist, which seriously affected the quality of public electricity grid.
与此同时电气化铁路又存在功率因数低、谐波含量高、负序等问题，严重影响了公用电网的电能质量。 - In recent years a variety of harmonic suppression methods can eliminate a certain number of harmonics, but may cause other number of the harmonic content increases or other issues.
近年来出现了多种谐波方法，虽然可以消除一定次数的谐波，但是会引起其它次数谐波含量的增加或其它一些问题。 - The Multi-level PWM rectifier technology has the advantages of flexible control options, easy to adjust and control of phase and amplitude of the output voltage, low output voltage harmonic content, high efficiency rectifier and suitable for high power output.
多电平PWM整流技术具有控制方式灵活、输出电压的相位和幅值便于调节与控制、输出电压的谐波含量低、整流效率高、适合于高压大功率输出等优势。 - The system can comb-out three-phase unbalance basically, and provides minimum harmonic content, thereby, the inconsistency between railway department and electric power department will be solved radically.
该系统基本消除了三相不平衡，并使谐波含量尽可能得好，从根本上解决了铁道部门与电力部门的主要矛盾。 - 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。 - Therefore, real-time, accurate detection of harmonic content and voltage fluctuation in power system, and the master of the exact power grid harmonic in the actual situation have practical significance to prevent the harm harmonics, power system security and protect important practical significance.
因此，实时、准确地检测电网中谐波含量和电压扰动信息，确切掌握电网中谐波和电压扰动的实际情况，对于防止谐波和电压扰动的危害，保障电网安全具有重要的现实意义。 - With the help of instantaneous reactive power theory, the principle that PWM rectification technology can enhance cascade speed control system power factor has been analyzed. The technology has enhanced system power factor and reduced line side harmonic content.
借助瞬时无功功率理论，分析了PWM整流技术能够提高串级调速系统功率因数的原理，该技术提升了系统的功率因数和减少了网侧谐波含量。 - When part of the battery pack is charging, another part of the discharge, the design system is significantly better than existing systems on the energy efficiency, harmonic content and power factor.
当部分蓄电池组处于充电，另一部分放电时，设计系统在能效、谐波含量、功率因素三个指标上都显著优于现有系统。 - There are five prime indexes of power quality: voltage deviation, frequency deviation, harmonic content, voltage fluctuation and flicker, unbalanced three-phase voltage and current.
电能质量主要有五项基本指标：电压偏差、频率偏差、谐波含量、电压波动和闪变、三相电压不平衡。 - Conventional reactive compensators have long response time, unexpected regulative characteristics, and high harmonic content in compensating current.
传统的无功补偿装置动态响应速度慢、调节特性差，体积庞大，补偿电流谐波含量高。 - Thirdly, we made emulation and calculation about harmonic content of voltage and current in line side and output side.
第三，对网侧及输出侧电压、电流的谐波含量作了仿真分析计算。 - For power system, the harmonic content is a core measure of the power quality.
对于电源系统而言，谐波含量是衡量其电能质量优劣的核心标准。 - Application of conventional direct torque control ( CDTC) system is limited by the problems of large ripple of torque and flux, high harmonic content of current and poor accuracy of flux observer in the steady state operation.
传统直接转矩控制系统在稳态运行时，具有转矩和磁链脉动大、电流谐波含量高及磁链观测准确性较差等问题，这些问题限制了其应用。