摘要
为了快速、准确地检测出次同步谐振(sub-synchronous resonance,SSR)早期信号,针对其频率较大、幅值较小的特点,基于随机共振理论,提出一种归一化自适应随机共振SSR检测方法。将随机共振方程做归一化变换,实现了对大参数信号的检测;进行自适应参数调节,使输出信号信噪比达到最优值。仿真结果表明该方法具有抗噪性好、实现简单、检测频率范围广的优点。
For the quick and accurate detecting of the early sub-synchronous resonance （SSR） signals which has the characteristics of higher frequency and low amplitude, this paper proposed a normalized adaptive SSR detection methods based on stochastic resonance theory. Normalization transformation of the stochastic resonance equation has been realized the detection of large parameter signal. The adjustment of adaptive parameters has optimized the signal noice ratio （SNR） of output signal. Simulation results show the advantages of good anti-noise , simple to realize and wide detection frequency.
出处
《吉林电力》
2013年第5期22-25,共4页
Jilin Electric Power
