Title :
Prony analysis of damping characteristic for micro-grid with energy storage system
Author :
Jiang Li ; Momoh, James A. ; Reddy, S. Surender
Author_Institution :
Sch. of Electr. Eng., Northeast Dianli Univ., Jilin, China
Abstract :
Prony analysis is a methodology that extends the Fourier analysis by directly estimating the frequency, damping, and relative phase of modal components present in a given state trajectory signal. This paper studies the damping profile of the micro-grid with storage system by using Prony analysis in smart-grid, which is different from the conventional transmission networks. This paper reveals the change in characteristics of damping with amplitude, frequency and energy in the transient analysis of micro-grid. The simulation analysis is helpful to propose the novel damping ratio index of smart-grid under different operation conditions.
Keywords :
distributed power generation; energy storage; frequency estimation; phase estimation; power system stability; power system transient stability; Fourier analysis; Prony analysis; conventional transmission networks; damping profile; damping ratio index; energy storage system; microgrid damping characteristic; modal component damping estimation; modal component frequency estimation; modal component relative phase estimation; smart grid; state trajectory signal; transient analysis; Damping; Energy storage; Mathematical model; Oscillators; Power system stability; Rotors; Wind turbines; Prony analysis; damping; energy storage system; micro-grid;
Conference_Titel :
North American Power Symposium (NAPS), 2014
Conference_Location :
Pullman, WA
DOI :
10.1109/NAPS.2014.6965458
