* Mu l t i d i s c i p l i n a r yGr a d u a t eS c h o o lP r o g r a mF o rWi n dE n e r g y , J e j uNa t i o n a lUn i v e r s i t y ( k ms 3 5 8 6 @n a v e r . c o m) , * * Mu l t i d i s c i p l i n a r yG r a d u a t eS c h o o lP r o g r a m F o rWi n dE n e r g y , J e j uNa t i o n a lUn i v e r s i t y ( t h e s i s 9 8 @n a v e r . c o m) , * * * De p a r t me n to fe l e c t r i c a le n g i n e e r i n g ,J e j uNa t i o n a lUn i v e r s i t y ( e h k i m@j e j u n u . a c . k r ) , * * * * De p a r t me n to fe l e c t r i c a le n g i n e e r i n g ,J e j uNa t i o n a lUn i v e r s i t y ( s b o h @j e j u n u . a c . k r ) , * * * * * P o we r& I n d u s t r i a lS y s t e msR &D C e n t e r ,HYOS UNG C OR P OR ATI ON( n e o mi n @h y o s u n g . c o m) A b s t r a c tTh i s p a p e rp r e s e n t s t h e c h a r a c t e r i s t i c so fp o we rg e n e r a t i o n o u t p u ta tHa e n g -wo n wi n d f a r m a n d h o w t o d e t e r mi n et h eo p t i mi z e dE S Sc a p a c i t yf o rp o we rs t a b i l i z i n g . De p e n do nt h ef l u c t u a t i o nr a t eo fwi n dp o we ro u t p u t v a r i a t i o n ,wi n df a r m c a p a c i t y a n ds i t e ,p o we rs t a b i l i z a t i o nwi l lb ei mp a c t e d . Th e r e f o r e ,wen e e dt od e t e r mi n e p r o p e rE S Sc a p a c i t y . Us i n gt h ea c t u a l d a t ao fHa e n g -wo nwi n df a r m f r o m 2 0 0 9 . 3t o2 0 1 0 . 2 . , c a p a c i t yo fE S Swa s d e t e r mi n e d b y mo v i n g a v e r a g e v a l u e .To v e r i f y t h e p r o p o s e d a l g o r i t h m,s i mu l a t i o n s a r e c a r r i e d o u twi t h P S C AD/ E MTDCp r o g r a m. Asar e s u l t , o p t i ma l E S Sc a p a c i t yo fHa e n g -wo nwi n df a r m i nJ e j ui se s t i ma t e da b o u t 1 . 6 3MWh .Ke y wo r d s:에너지저장시스템( E n e r g yS t o r a g eS y s t e m) ,풍력( Wi n dp o we r ) ,출력변동률( F l u c t u a t i o nr a t eo fp o we r ) , 출력 안정화( P o we rs t a b i l i z a t i o n )

This paper shows the test result of 2MVA BESS(Battery Energy Storage System) with wind-turbine in micro-grid of the Gapado. To implement of micro-grid with BESS, characteristics of generator and customer load in grid are considered. Also, to operate of 2-parallel PCU(Power Conversion Unit) in BESS, the droop control is adopted with operating mode of grid independent. Performances of BESS with wind-turbine were verified by analysis of power quality such as voltage harmonics, ratio of voltage and frequency regulation, and by measurement of waveform such as output voltage and current.

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( S u b mi td a t e:2 0 1 3 .5 .6 . ,J u d g me n td a t e:2 0 1 3 년 5 .1 3 . ,P u b l i c a t i o nd e c i d ed a t e:2 0 1 3 .8 .8 . )Abstract： Th i sp a p e rp r e s e n t st h ee s t i ma t i o no fmi n i mu m B E S Sc a p a c i t yf o rr e g u l a t i n gt h eo u t p u to fwi n df a r ms