1. Generator Coherency Using the Wavelet Phase Difference Approach
- Author
-
Mirza Kusljugic, Elvisa Becirovic, Amir Nuhanovic, and Samir Avdakovic
- Subjects
Discrete wavelet transform ,Engineering ,business.industry ,Energy Engineering and Power Technology ,Electric generator ,Continuous wavelet transforms ,Discrete wavelet transforms ,Generators ,Oscillators ,Power system dynamics ,Time-frequency analysis ,Hilbert-Huang transform ,generator coherency ,power system ,wavelet phase difference ,Hilbert–Huang transform ,Time–frequency analysis ,law.invention ,Electric power system ,Wavelet ,Control theory ,law ,Electrical and Electronic Engineering ,business ,Algorithm ,Continuous wavelet transform ,Generator (mathematics) - Abstract
In this paper, the wavelet phase difference (WPD) approach is applied for the identification of power system areas with coherent generator groups. This approach allows observation, at different frequency bands, of movement of low frequency electromechanical oscillations (LFEO), identified at different parts of the power system and the identification of the inter-area components that move or do not move together. An illustration of the applied approach was performed on the New England (NE) 39-bus test system. The interesting results of WPD application are also presented in a real wide-area measurement data from European interconnected power system. By using the discrete wavelet transform (DWT) and Hilbert-Huang transform (HHT), the validation of results from WPD approach is also given.
- Published
- 2014