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000000454 037__ $$aENY-PREPRINT-2014-014
000000454 041__ $$aeng
000000454 088__ $$aI08/2014/I-069
000000454 100__ $$aChitti Babu, B$$uFaculty of Electrical Engineering, Politechnika Wrocławska
000000454 245__ $$aAnalysis of Recursive DFT Filtering Based Grid Synchronization of Distributed Generation System 
000000454 260__ $$c2014-02-17
000000454 300__ $$a19p
000000454 500__ $$aInternational Journal of Distributed Energy Resources and Smart Grids (IJDER), vol. 10, No. 3, pp. 165-183
000000454 520__ $$aA converter-interfaced distributed generation (DG) system, like,  wind power system, photovoltaic (PV) and micro-turbine-generator system, requires a fast and exact detection of phase and fundamental frequency of grid current in order to implement the control algorithm of power converters by generating reference currents signals. Moreover, a desired synchronization algorithm must detect the phase angle of the fundamental component of grid currents as fast as possible while adequately eliminating higher order harmonic components. This paper presents a grid synchronization algorithm for converter-interfaced DG systems based on recursive Discrete Fourier Transform (DFT) filtering. The proposed recursive DFT filtering shows a robust phase tracking capability with fast transient response under abnormal grid conditions. The overall performance of studied recursive DFT filtering is analysed and the obtained results are compared with Synchronous rotating reference frame (SRF) PLL to confirm the feasibility of the study under different grid environment such as high frequency harmonic injection and frequency deviation.
000000454 6531_ $$aphase locked loop (PLL)
000000454 6531_ $$adiscrete Fourier transform (DFT)
000000454 6531_ $$aphase detection
000000454 6531_ $$agrid-interactive power converter
000000454 6531_ $$agrid synchronization
000000454 6531_ $$atotal harmonic distortion (THD)
000000454 700__ $$aSridharan, K$$uDept. of Electrical Engineering, National Institute of Technology, Rourkela
000000454 700__ $$aRosolowski, E$$uFaculty of Electrical Engineering, Politechnika Wrocławska
000000454 700__ $$aLeonowicz, Z$$uFaculty of Electrical Engineering, Politechnika Wrocławska
000000454 8560_ $$
000000454 8564_ $$u$$zAccess to Fulltext
000000454 909CO $$$$pglobal
000000454 980__ $$aPREPRINT