介绍了谐波的产生原因、危害及影响。
The cause, harm and effect of harmonic wave were introduced.
抑制高次谐波的产生，是手机设计中的关键。
The most important issue in mobile phone design is to suppress harmonics.
对电力系统谐波的产生、谐波源、谐波对电力系统的危害及谐波的限制措施加以论述。
The generation of harmonics in electric power system, source of harmonics, harmfulness of harmonics to electric power system, and actions to restrict harmonics are discussed in detail.
结果发现：（1）对一定强度和频率的激光脉冲，紧束缚的势场抑制高次谐波的产生；
Two facts are found: (1) For the given laser pulse, the tighter the potential bound the electron, the difficulter scattering harmonics extends to high order;
而基于IGBT的正弦波调光器可以有效地避免大量谐波的产生，是未来调光器的发展趋势。
The dimmer based on IGBT could reduce the amount of harmonics, so it is the development trend of future.
对扬声器的非线性分谐波的测量分析表明，扬声器薄壳分谐波的产生源于扬声器薄壳模态的相互作用。
The measurement results and analyses shows that the sub-harmonics in, loudspeaker shell are caused by the interaction of vibration modes.
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 paper introduces the causes of harmonic wave and its impact on transmission lines and electric equipments in Wuxi grid.
采用串联电压谐振产生高压起辉，必须采取过流保护措施。 电子镇流器高次谐波的产生及其所带来的危害。
We also should take protective measures for the volt power bright spots that produced by the series voltage resonance and the higher harmonic produced by the Electronic Ballast.
理论分析和数值计算表明：相位匹配条件满足的情况下，光子晶体(PBG)中的二次谐波的产生的效率和增强会大大提高。
As for SHG, we show that the efficiency of SHG in PBG can be greatly enhanced if the phase match condition is met.
减小这种影响的一个办法是，将由电力电子负载产生的谐波电流或者电磁干扰滤除。
One approach to minimize this impact is to filter the harmonic currents and the electromagnetic interference(EMI) produced by the power electronic loads.
由于阻抗器的等效电阻为纯电阻，因此在调整电压的过程中不会产生谐波。
Because of the pure resistive nature of the equivalent resistance of impedor, no harmonic will be generated during the voltage regulation.
本文提出了大功率整流装置产生的谐波防治措施。
The methods of harmonics suppression for high-power rectifier devices are proposed .
论文的第三章研究了极化子效应对方形量子阱中三次谐波产生的影响。
In the third chapter, polaron effects on the third-harmonic generation in square Wells are investigated.
利用量子力学中的密度矩阵算符理论导出了该系统中三次谐波产生的解析表达式。
An analytic representation for the third-harmonic generation along the well is derived by the density matrix operator theory of the quantum mechanics.
谐波所产生的室间隔缺损，可以有一个作用，对配电系统和公用工程系统。
Harmonics produced by the VSD can have an effect on the electrical distribution and the utility system.
换流器单元产生的谐波会流过交流和直流线路。
The converter units generate harmonics which flow in the AC and DC lines.
由于电网中非线性设备的使用日益增多，所产生的高次谐波电流大量注入电力线路中，使得电网电压、电流波形发生畸变。
Since more and more nonlinear equipments have been used in the power supply network, the generated high harmonics current leads to waveform distortion of voltage and current in the supply network.
PWM调制技术已广泛应用于电力电子技术中，但PWM调制信号含有大量的高次谐波，成为产生emi的主要原因之一。
Though PWM modulation technology has already been used in power converter abroad, it becomes a main reason which can produces EMI because PWM modulation signal contains abundant high harmonic.
采用现代控制理论研究了谐波抑制的产生机理。
Modern control theory is used to study the harmonic suppression.
设计的一套实验系统用来消除谐波负载产生的谐波影响。
A combined power filter test system is designed, which is used to clean up harmonics of harmonic load.
对晶闸管CO2焊接电源焊接过程主变压器一次侧产生的谐波信号进行采集分析，以此研究焊接电源对电网的影响。
This paper collects and analyzes the harmonic signals of the CO2 welding machines main transformer, by which researches the effect of welding power source on the main.
只有那些即使次谐波产生的输出级本身的取消。
Only those even-order harmonics generated in the output stage itself are canceled.
这些限制标准必将对电力电子装置及供电系统的设计者在电路选择和谐波抑制方面产生深刻的影响。
The standard limiting harmonics will deeply influence the designer on the selection of the power electronic equipments and the methods for limiting harmonics.
电力电子装置产生的谐波已成为电力系统的主要谐波污染源。
The harmonics generated by electronic equipment become the major harmonic sources in power systems.
SVC投入运行后，对非线性负荷产生的谐波电流，电压波动及闪变等引起供电电能质量的问题起到了很好的治理效果。
After SVC was put into operation, power quality problem caused by harmonic current, voltage fluctuation and flicker has been solved.
讨论了气体介质的非均匀性对飞秒激光高次谐波产生过程的可能影响。
The possible influence of nonuniform gaseous medium on high order harmonics generated by femtosecond laser is discussed.
文中分析了电力系统中谐波的来源及其产生的影响与危害，并总结了相应的消除对策和抑制的方法措施等。
The paper analyzes the sources and impact and hazard of power system's harmonic and summarizes the corresponding eliminating solutions and restraining measures.
阐述了电气回路中谐波电流产生的原因及其引起中性线和相线过载的危险。
The paper presents the causes of harmonics current and overload hazard of neutral line and phase line by harmonics in electrical line.
阐述了电气回路中谐波电流产生的原因及其引起中性线和相线过载的危险。
The paper presents the causes of harmonics current and overload hazard of neutral line and phase line by harmonics in electrical line.
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