In this paper an efficient technique based on Prony’s
method for the time-varying power system harmonic
estimation is proposed. Although the high frequency resolution
is the major advantage of Prony’s method, the great
computational burden with the high estimation order usually
makes it only suitable for the off-line analysis. To achieve the
fast harmonic measurement, a filter-bank structure is
proposed to reduce the above computational complexity.
Finally, the measurement results are reported to verify the
performance of the proposed technique.
Proceedings of the 2009 IEEE International Symposium on Circuits and Systems (ISCAS)