کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
705425 | 891326 | 2011 | 15 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Disturbance detection in grid-connected distributed generation system using wavelet and S-transform Disturbance detection in grid-connected distributed generation system using wavelet and S-transform](/preview/png/705425.png)
In this paper, wavelet transform and S-transform based approach is proposed for islanding detection and disturbance due to load rejection in distributed generation (DG) based hybrid system. The two types of distributed generation technology: inverter based and rotating machine based, that consists of photovoltaic, fuel cell and wind systems are considered in hybrid system configuration. The negative sequence voltage signal is analyzed through wavelet transform and S-transform for islanding detection of these resources from the grid. The above two approaches are also used in study of voltage profile at point of common coupling (PCC) with a non-linear load connected. The study for different scenarios in operation of DG system is presented in the form of time–frequency analysis. The energy content and standard deviation (STD) of S-transform contour and wavelet transform signal is also reported for both islanding detection and disturbance due to load rejection.
Journal: Electric Power Systems Research - Volume 81, Issue 3, March 2011, Pages 805–819