A higher harmonic wave filter was designed.
设计了高次谐波滤波器。
Based on this, the methods for compensating the harmonic wave are discussed.
在此基础上，对该类系统的谐波补偿方法进行了探讨。
These methods are valid to restrain the harmonic wave in arc welding inverter.
这些方法对于抑制弧焊逆变电源的谐波是行之有效的。
The exponential type horn can suppress high harmonic wave and low harmonic wave.
指数型号筒具有抑制高低次谐波的作用；
At the same time, the characteristic of probability of harmonic wave current can be obtained.
同时得到了该次谐波电流的概率统计特性。
Aimed at producing heat, vibration, disturbance and harmonic wave, the handling opinions are pointed.
针对使用中出现的发热、振动、干扰与谐波等问题提出处理意见。
The source of the harmonic wave in the power system mainly comes from all kinds of nonlinear devices.
电力系统中产生的谐波主要来自各种非线性用电设备。
The harm and type of harmonic wave were introduced, and the principle of active filter was analyzed as well.
介绍谐波的危害，产生谐波的类型，有源滤波的原理。
The signal has the advantages of small harmonic wave amount, good sine property and small subdivision error.
由于电子细分技术是基于理想的正弦信号，正弦性差将带来很大的细分误差。
It is concluded that it is better to use harmonic wave as exciting wave than to employ symmetrical trigonometric wave.
最后得出谐波激励比对称三角波激励效果好的结论。
The vibratory treatment is done at each harmonic wave until the resonance frequency is stable and then turned to the next.
在每一个谐波进行振动处理直至谐振频率稳定并转入另一个谐波进行振动处理。
The paper introduces the causes of harmonic wave and its impact on transmission lines and electric equipments in Wuxi grid.
介绍了江苏无锡地区电网谐波的产生，分析了电力谐波产生的原因以及对输电线路、电器设备等的影响。
The fluctuation circle of aquatic products price between 1978 and 2000 via ratio of variation and harmonic wave was researched.
采用变异率指标与谐波分析法研究了1978-2000年水产品年度收购价格波动的周期性。
The current or voltage harmonic wave in power lines may cause abnormalities in self synchronization drive, computer, telephone, etc.
电力线路的电流、电压谐波效应可以引起自同步拖动、计算机、电话等异常运行。
Even if it worked with three-phase sine, three-phase line current would have non-sine aberrance and produce harmonic wave-electricity.
即使在三相正弦激励的作用下，三相线电流也将发生非正弦畸变，产生谐波电流。
Electric system harmonic wave have already caused concerns among each branches, we must manage harmonic wave for our electric energy quality.
目前电力系统谐波危害已经引起了各个部门的关注，为了整个供电系统的供电质量，必须对谐波进行有效的检测和治理。
This paper analyzed the problem of harmonic wave, matching of load and calorification for inverters in running and made the relatively measure.
本文针对变频器运行过程中存在的谐波问题、负荷匹配以及发热问题进行分析，并且提出相应的解决方案。
In accordance with the familiar configuration for present lighting system, the common harm of harmonic wave and numerical values were showed here.
针对目前灯光系统设计中常见的配置情况，指出常见的谐波危害及相关数值的计算。
The growing tendency of the abnormity and accident which caused by the harmonic wave has already become the social harmfulness in the power system.
电力谐波干扰导致电气设备异常和事故有逐年增长的趋势，电力系统谐波已成为威胁电力系统和其它用电负荷安全运行的“电力公害”。
The errors of harmonic wave analysis and direct sampling in electric parameters measurement are analyzed. The method to minimize errors is presented.
分析了电力参数微机监测中的直接采样计算法与谐波分析法的误差，并提出了减小误差的方法。
The wave pressures are computed numerically and the computed first-order and second-order harmonic wave pressures are compared with the measured data.
利用数值方法对波浪压力进行了计算，并将一阶和二阶波压力的数值结果与实测值进行了比较。
The reasons for the generation of harmonic wave in electric network during the running of large scale electrochemical rectification devices are analyzed.
分析大工业电化学整流装置运行过程中产生电网谐波的原因，认为要保证电网的安全运行就要抑制用电设备产生谐波。
On the basis of analysis of operation performance of AC motor, the harm of harmonic wave of electric net work to electric motor is summarized in the paper.
在分析交流电机工作特性的基础上，阐述了电网谐波对电机的危害。
Because real waves contain numerous harmonic wave and even exponentially. attenuating components, the accuracy of an algorithm depends on its filterability.
但由于实际波形中含有大量的谐波分量甚至指数衰减分量，直接影响了这些算法的精度。
Time--harmonic wave equations of electromagnetic potential in chiral media are given, the dyadic Greens function is solved by using dyadic algebraic method, then.
给出手征媒质中电磁势满足的时谐波动方程，运用并矢代数方法求解了电磁势的并矢格林函数，以偶极振子为例研究了手征媒质中的远区辐射场性质。
Active power Filter (APF) technology is one of the important ways to realize harmonic wave compensation of electrical network and improve the quality of power supply.
有源电力滤波器(简称APF)技术是一种实现电网谐波补偿、改善供电质量的重要方法。
In this paper, firstly the mathematic model for variable frequency motor is developed, and harmonic wave is analyzed when variable frequency motor is fed by inversion.
本文首先建立变频电动机的数学模型，对逆变器供电时的谐波进行了分析。
The wave equation having general forms of planar simple harmonic wave is deduced in this article. It is simple and accurate to solve wave equation by using this formula.
推导出了具有一般形式的平面简谐波的波动方程，利用此公式求解波动方程简单而且准确。
The harmonic wave has great harm, and harmonic sources are widely distributed, so the harmonic current caused by different harmonic sources should be analyzed one by one.
由于谐波危害很大，而且谐波源分布广泛，因此对不同谐波源产生的谐波电流应逐个分析。
The harmonic wave has great harm, and harmonic sources are widely distributed, so the harmonic current caused by different harmonic sources should be analyzed one by one.
由于谐波危害很大，而且谐波源分布广泛，因此对不同谐波源产生的谐波电流应逐个分析。
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