Intermingled with the brownish red are such bright and dark colors as orange, black, blue and green; seemingly translucent, they flicker off and on, exhibiting a coloring effect of remarkable appeal. 棕红色彩之中,透现、晕染了橙、黑、蓝、绿等或明亮或深沉的色彩,起落明灭,展现引人观赏的色彩层次。
For AC electric arc furnace is an unbalanced, nonlinear and time variant load that produces unbalance, harmonics and interharmonics related with flicker effect. 由于交流电弧炉是一种不平衡的、非线性时变负载,它产生与电压闪变有关的不平衡、谐波和分数谐波,所有这些就需要一种非线性、不对称的动态u&i特性的电弧炉模型。
Unfortunately, the existing algorithms removing intensity flicker do not consider the effect of local motion. 然而大多数闪烁去除算法中并没有考虑局部运动造成的影响。
Moreover, Hilbert-Huang Transform ( HHT) is employed to demodulate the flicker voltage amplitude-modulated envelope, therefore, the effect of harmonics is avoided and the precision of flicker analysis is improved. 采用Hilbert-Huang变换进行电压闪变调幅波信号的包络解调,可以避免电网工频高次谐波对解调的影响,从而提高闪变分析的精度;
Among, caused by the wind of the voltage flicker is one of the major negative effect that brought by wind power grid. 其中,由风电并网所带来的系统电压闪变将对系统产生重要影响。