The conclusion points out that the ripples appeared in the laminar microgravity V flame are due to the effect of acoustic interaction coupling with the harmonic instability.
因此，微重力环境下V型火焰锋面的不稳定性可能是声波与谐波相耦合的结果。
For decreasing the probability of harmonic instability and guaranteeing the safety and stability of HVDC's operation, it is necessary to research the harmonic instability deeply.
为减小谐波不稳定发生的概率，保证直流系统运行的安全、稳定性，对谐波不稳定现象进行深入研究是十分必要的。
A new method is introduced for judging harmonic transformer core saturation instability.
提出了一种判断铁心饱和型谐波不稳定的新方法。
A new method is introduced for judging harmonic transformer core saturation instability.
提出了一种判断铁心饱和型谐波不稳定的新方法。
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