Title :
An improved Prony method for identifying low frequency oscillations using synchro-phasor measurements
Author :
Tripath, P. ; Srivastava, S.C. ; Singh, S.N.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India
Abstract :
This paper deals with implementation of an Improved Prony algorithm, based on median filter, in estimating the low frequency modes of power system oscillations. The signal used for estimating the modes are the power signal obtained from phasor measurement units (PMUs). The comparison of the proposed method has been carried out with conventional Prony based method on a synthetic test signal at different noise levels. Estimation of modes for a 2-area system, using the proposed method, is also carried out in the present work.
Keywords :
median filters; oscillations; phase measurement; power system measurement; improved Prony method; low frequency mode estimation; low frequency oscillation identification; median filter; power signal; power system oscillations; synchro-phasor measurement unit; synthetic test signal; Filters; Frequency estimation; Frequency measurement; Phasor measurement units; Power system analysis computing; Power system interconnection; Power system measurements; Power system modeling; Power system stability; Testing; Median filter; Prony method; measurement error; phasor measurement unit (PMU); white noise;
Conference_Titel :
Power Systems, 2009. ICPS '09. International Conference on
Conference_Location :
Kharagpur
Print_ISBN :
978-1-4244-4330-7
Electronic_ISBN :
978-1-4244-4331-4
DOI :
10.1109/ICPWS.2009.5442754
