Wavelet-Based Power System Stabilizer

Author

Martins De Sousa Neto, Cecilio ; Costa, Flavio B. ; De Araujo Ribeiro, Ricardo Lucio ; Lopes Barreto, Rodrigo ; De Oliveira Alves Rocha, Thiago

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Rio Grande do Norte, Natal, Brazil

Volume

62

Issue

12

fYear

2015

Firstpage

7360

Lastpage

7369

Abstract

This paper proposes a wavelet-based power system stabilizer (WPSS) by using both the scaling coefficient energy and the wavelet coefficient energy with border distortions of a one-cycle sliding window. The boundary scaling coefficient energy is used for real-time extraction and compensation of electromechanical oscillations in the synchronous generator, whereas the boundary wavelet coefficient energy is used for the real-time detection of electrical oscillations and for tripping the WPSS at the fault inception time. The performance of the proposed WPSS was assessed in an experimental power system laboratory setup and compared with a conventional power system stabilizer.

Keywords

oscillations; power system stability; synchronous generators; wavelet transforms; border distortions; boundary scaling coefficient energy; boundary wavelet coefficient energy; electrical oscillations; electromechanical oscillations; fault inception time; one-cycle sliding window; real-time detection; synchronous generator; wavelet-based power system stabilizer; Discrete wavelet transforms; Oscillators; Power system stability; Real-time systems; Stability analysis; Synchronous generators; Electrical oscillations; electromechanical oscillations; power system stabilizer (PSS); synchronous generator; wavelet transform;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2015.2454482

Filename

7153548