Through the comparison among the three methods, the COPWM-A method shows the best harmonic characteristics.
通过对三类PWM方法谐波性能的比较，得出了COPWM -A调制方法输出线电压的谐波性能最优的结论。
Based on this, the harmonic characteristics of single-phase nonlinear devices and the effects on architectural electricity designing are studied.
本文以实验的方法对低压单相非线性负荷的谐波特性进行了研究。
According to the harmonic characteristics of electric locomotive typed SS4 under typical operating situations, the current module of harmonic source is proposed.
依据ss4型电力机车在典型工况下的谐波特点，提出了谐波源的电流模型。
The harmonic characteristics of a rectifier with a DC filter inductor or capacitor are analyzed and then relevantlythey are classified into current type and voltage type harmonic source.
分析了直流侧电感和电容滤波的整流器的谐波特性，进而把它们分为电流和电压型谐波源。
Based on the site investigation and testing, summary and evaluation of the harmonic characteristics of typical nonlinear loads, and the effective solutions of harmonic elimination are presented.
结合现场调研测试，总结评估了典型非线性负载的谐波特性，并给出谐波治理的有效方案。
Based on the MATLAB software, the harmonic characteristics of input current, output voltage and output current are simulated. Accordingly these results provide a theoretic basis for filter design.
基于MA TLAB软件，仿真研究了谐波源输入电流、输出电压及输出电流的谐波特性，为矿井滤波装置的设计提供了理论基础。
The magnetic sensor has characteristics of high sensitivity and quick response due to the amorphous wires excited directly by sharp pulse train current containing amount of harmonic signals.
采用含有丰富谐波分量的窄脉冲电流作为励磁信号对非晶丝直接励磁，使传感器具有灵敏度高、响应快的优点。
Characteristics and Functions of ETAP software and its application on assessing harmonic influences of customers are introduced.
文章介绍了ETAP软件的特点和功能以及如何应用该软件对用户谐波影响进行评估。
The intrinsic characteristics and harmonic responses of vibrating beam of paver are analyzed using FEA.
用有限元法对摊铺机振动梁进行了固有特性和谐波响应分析。
Additionally, the paper investigates the statistical characteristics of objective functions of harmonic state estimation problem and thus presents practical algorithm evaluating quality of estimation.
另外，文章调查了谐波状态估计问题的统计特性，并在此基础上提出了评价估计质量的具体算法。
Its operation characteristics and possible problems, such as power harmonic and system stability, are widely studied in the whole world.
其运行特性以及可能存在的电力谐波、系统稳定性等一系列问题是人们广泛关注的课题。
This paper analyses the characteristics, efficiency and harmonic of four kinds of power circuits for SCR-cascade control used in textile mill ventilators.
本文分析了目前纺织厂通风机可控硅串级调速四种主电路方案的特点、效率和谐波等情况。
The formula of harmonic torque of this motor is obtained and the characteristics of every order harmonics are discussed by adopting the principle of magnet coenergy.
采用能量法的观点，从宏观、总体的角度分析得出了电机的谐波转矩公式，研究了各次谐波的特性。
To achieve a steady harmonic mode-locked pulse (HMLP), the theory of rational harmonic mode-locking and the transmission characteristics of a nonlinear amplifying loop mirror were analyzed.
为了获得稳定的谐波锁模脉冲，分析了有理数谐波锁模的理论和非线性放大环镜的传输特性。
According to the operational principle of SVPWM and considering the characteristics of digital implement, a novel algorithm of SVPWM harmonic analysis based on PWM rectifier is proposed.
根据SVPWM的工作机理并结合数字实现的特点，给出了一种基于PWM整流器的SVPWM新型谐波分析算法。
Under the excitation of harmonic force the vibrational power flow characteristics of plate with a surface crack are investigated from the view of structure-borne sound.
从结构噪声的观点研究了在简谐力作用下含有表面裂纹板的振动功率流特性。
The harmonic analysis can reveal the characteristics of wave motion in various scales at different latitudes.
谐谱分析便于揭示不同纬圈上不同尺度的波动特征。
Meanwhile, dynamic harmonic response has been made, the vibration response characteristics of cutting part are analyzed from the perspective of frequency response.
同时进行了动力学谐响应分析，从频率响应的角度分析了截割部的振动响应特征。
A designer should master the characteristics of colors, the rules of harmony of colors and the common harmonic patterns as well.
设计者应掌握色彩的特点与和谐规律以及其常见的协调形式，才能为搞好设计、创造良好的色彩视觉效果打下一定的基础。
And then, starting with harmony, the author analyzes several main harmonic progression characteristics of Chopin's scherzos.
然后从和声入手，分析了肖邦谐谑曲中和声进行的几种主要特点。
The third chapter introduces the harmonic oscillator model, normal mode vibration types and frequency characteristics of infrared spectra.
第三章介绍了红外光谱的谐振子模型、简正振动类型和频率特征。
On the basis of discussing the operation principles of the shunt and the series active power filters, their compensation characteristics to different types of harmonic sources are investigated.
在探讨并联型和串联型APF工作原理的基础上，研究了它们对不同谐波源的补偿特性。
However, because of its nonlinear characteristics, the switching power supply resulting input current contains a large number of odd harmonics, which cause serious harmonic pollution for the grid.
然而由于其非线性的特性，导致其输入电流中含有大量奇次谐波，对电网造成了严重的谐波污染。
The characteristics and definition of simple harmonic motion are discussed, and the relationship between vibration in general physics mechanics and micro-vibration in theoretical mechanics as well.
简谐振动是振动的基础。本文讨论了简谐振动的特点，简谐振动的定义以及普通物理力学中振动与理论力学中的微振动之间的关系。
This thesis will explain the importance of harmonic in prelude through the analysis the structure, melody characteristics, rhythm, and non-harmonic tone of these 26 preludes.
本文将针对26首前奏曲，从对其结构形式、旋律特点、节奏、和弦外音等方面的分析入手，来进一步了解前奏曲中和声色彩的丰富性。
In this paper, the mechanism of harmonic increments caused by device characteristics are analyzed in detail, and the compensation algorithm of a forward voltage drop is proposed.
该文详细分析了由器件特性引起的谐波增大的机理，提出了管压降补偿的方法。
The experiment results indicate the system has the characteristics of high power factor and low harmonic current.
实验结果表明，该系统具有输出功率因数高，对电网谐波污染小等优点。
The device in practical applications has the following characteristics: non-harmonic, less power consumption, long service life when the capacitor switches.
该装置在实际应用中具有电容器投切时无涌流、无谐波、功耗小、使用寿命长的特点。
This paper studies the causality and analyticity characteristics in harmonic oscillator, and from which drives Hilbert transform pair.
本文对谐振子的因果律和解析性质进行了研究，并由此推导出谐振子的希尔伯特变换对。
This paper studies the causality and analyticity characteristics in harmonic oscillator, and from which drives Hilbert transform pair.
本文对谐振子的因果律和解析性质进行了研究，并由此推导出谐振子的希尔伯特变换对。
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