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。
This paper analyses the characteristics, efficiency and harmonic of four kinds of power circuits for SCR-cascade control used in textile mill ventilators.
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.
结果表明两级喇曼压缩系统配偏振干涉能有效抑制主束谐波影响，以更高时间分辨测量等离子体的更高密度区域。
The result shows that with the aid of the probe beam, the electron density can be probed with a much higher temporal resolution and the disturbance of harmonic can be effectively avoided.
分析了一种带交流谐振环节软开关谐波补偿器的主电路拓扑。
A topology of the main circuit for the harmonic compensator with a resonant AC link soft-switching is analyzed.
并进行了主共振、超谐波共振及组合共振的分析，从而进一步解释了激光育种中的频率现象。
Through analysis of primary resonance, superharmonic resonance and combination resonance, and therefore some frequency phenomena in laser breeding are explained.
有源滤波器能否按其工作原理实现预期的谐波抑制效果，除了主电路设计合理之外，在很大程度上还依赖于保持直流侧电压的恒定。
Whether the hybrid active power filter could get desirable effects of harmonic suppression depends on the constancy of DC-side voltage besides the correct design of the main circuit.
介绍了一种新型低耐压中性线谐波治理装置的主电路结构，并对其工作原理进行了分析。
The main circuit of a novel neutral harmonics current conditioner and its control principle are described.
同时，在主电路结构中，采用LCL滤波，改善了对高频开关谐波的抑制。
Meanwhile, in the main circuit structure, the use of LCL filter, improved high frequency switching harmonics suppression.
本文研究在简谐激励力作用下二端面弹性转轴相对转动的主共振、超谐波共振和亚谐波共振。
The principal, ultraharmonic and subharmonic resonance of an elastic rotation shat with twin sides by a harmonic force is discussed, in this paper.
从广西主网无功电压管理及谐波监督管理两方面对广西电网电能质量现状进行分析，指出存在问题，提出了改善电能质量的对策。
The paper analyzes the current quality of energy according to toth the managements of reactive power voltage and harmonics monitoring in Guangxi Electric power Grid.
将谐波合成法与修正的谱描述法结合用于大跨度桥梁主梁及桥塔上的随机风场模拟。
A combination of the wave superposition method and the modified spectral representation method is applied to a wind field simulation for whole bridge including the deck and the towers.
提出根据互感器主铁心谐波磁通直接测量电力系统谐波的方案。
A principle of measuring harmonics directly according to the harmonic magnetic flux in the main core of the current transformer is proposed.
提出根据互感器主铁心谐波磁通直接测量电力系统谐波的方案。
A principle of measuring harmonics directly according to the harmonic magnetic flux in the main core of the current transformer is proposed.
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