Harmonic Frequency Estimation Algorithm based on ESPRIT and MSWF in Power System
Xiangwen Sun, Zhe Cao, Tian Wei · The Open Electrical & Electronic Engineering Journal · 2015
This paper points out the deficiency in the current harmonic frequency estimation algorithm in power system. In order to improve the accuracy of detection and reduce the computational complexity, the study combined the ESPRIT algorithm with multistage Wiener filter (MSWF) recurrence to achieve fast estimation of harmonic frequency. Theoretical analysis and simulation experiment show that the algorithm had relatively low requirement for the amount of data, and demonstrated good frequency resolution characteristics and anti-jamming capability, which made it ideally suitable for harmonic analysis in power system.