Robust Power System Frequency Estimation Based on a Sliding Window Approach

Figure 6

Steady-state estimation performance of all the algorithms as a function of the initial phase, which was normalized by . The filter length of the proposed 1-phase Wiener filter and 1-phase and 3-phase LMS algorithms was , the step-size , and SNR was 50 dB. The results were achieved by averaging 500 independent trials.