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Çѱ¹¼öÀÚ¿øÇÐȸ / v.31, no.6, 1998³â, pp.855-862
¼ö¹®ÇÐÀû ¿¹ÃøÀÇ Á¤È®µµ¿¡ µû¸¥ Àú¼öÁö ½Ã½ºÅÛ ¿î¿µÀÇ ¹Î°¨µµ ºÐ¼®
( Sensitivity Analysis for Operation a Reservoir System to Hydrologic Forecast Accuracy )
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º» ¿¬±¸´Â ¼ö·Â¹ßÀüÀ» À§ÇÑ Àú¼öÁö °ü¸®¿¡ ÀÖ¾î ¿¹Ãø¿ÀÂ÷ÀÇ ¿µÇâÀ» »ìÆìº¸±â À§ÇØ ¿¹Ãø¿ÀÂ÷¸¦ Root Mean Square Error(RMSE)·Î ÃøÁ¤ÇÏ¿´°í, À̸¦ Generalized Maintenance Of Variance Extension (GMOVE)±â¹ýÀ» ÅëÇÏ¿© º¯È­½ÃÄѺ¸¾Ò´Ù.º¯È­µÈ ¿¹Ãø¿ÀÂ÷ÀÇ RMSE´Â õÀÌÈ®·üÀ» ÅëÇÏ¿© Bayesian Stochastic Dynamic Programming (BSDP)¿¡ °í·ÁµÇ¾îÁ³À¸¸ç, ÀÌ BSDP ¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ¿ùº° ¹æ·ù·®À» °áÁ¤ÇÏ¿´°í ±× À¯¿ë¼ºÀ» Æò°¡ÇÏ¿´´Ù. Á¦½ÃµÈ ¿¬±¸¹æ¹ýÀº ¹Ì±¹ÀÇ Skagit ½Ã½ºÅÛ¿¡ Àû¿ëµÇ¾ú°í, ±× °á°ú·Î Skagit ½Ã½ºÅÛÀÇ ¿î¿µÀº ¿¹Ãø¿ÀÂ÷ÀÇ RMSE¿¡ ºñ¼±ÇüÀ̹ǷΠ¹ÝÀÀÇϹǷΠÀÌ ½Ã½ºÅÛÀÇ ¿î¿µÀ» °³¼±Çϱâ À§Çؼ­´Â ÇöÀçÀÇ ¼ö¹®ÇÐÀû ¿¹Ãø±â¹ýÀ» °³¼±ÇؾßÇÔÀ» Á¦½ÃÇÏ¿´´Ù.
This paper investigates the impact of the forecast error on performance of a reservoir system for hydropower production. Forecast error is measured as th Root Mean Square Error (RMSE) and parametrically varied within a Generalized Maintenance Of Variance Extension (GMOVE) procedure. A set of transition probabilities are calculated as a function of the RMSE of the GMOVE procedure and then incorporated into a Bayesian Stochastic Dynamic Programming model which derives monthly operating policies and assesses their performance. As a case study, the proposed methodology is applied to the Skagit Hydropower System (SHS) in Washington state. The results show that the system performance is a nonlinear function of RMSE and therefor suggested that continued improvements in the current forecast accuracy correspond to gradually greater increase in performance of the SHS.
 
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.31, no.6, 1998³â, pp.855-862
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ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920062905)
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